# List of minor planets: 40001–41000

The following is a partial list of minor planets, running from minor-planet number 40001 through 41000, inclusive. The primary data for this and other partial lists is based on JPL's "Small-Body Orbital Elements" and data available from the Minor Planet Center. Critical list information is also provided by the MPC, unless otherwise specified from Lowell Observatory. A detailed description of the table's columns and additional sources are given on the main page including a complete list of every page in this series, and a statistical break-up on the dynamical classification of minor planets.
Also see the summary list of all named bodies in numerical and alphabetical order, and the corresponding naming citations for the number range of this particular list. New namings may only be added to this list after official publication, as the preannouncement of names is condemned by the Working Group for Small Bodies Nomenclature of the International Astronomical Union.
| Near-Earth obj. | MBA (inner) | MBA (outer) | Centaur |
| Mars-crosser | MBA (middle) | Jupiter trojan | Trans-Neptunian obj. |
| Unclassified | | | |

## Index100K200K300K400K500K600K700Kcolor code

* 35,000s
* 36,000s
* 37,000s
* 38,000s
* 39,000s
* 40,000s
* 41,000s
* 42,000s
* 43,000s
* 44,000s
* 45,000s
* 40,001…
* 40,101…
* 40,201…
* 40,301…
* 40,401…
* 40,501…
* 40,601…
* 40,701…
* 40,801…
* 40,901…

## 40001–40100

| Designation | Designation | Designation | Discovery | Discovery | Discovery | Properties | Properties | Ref |
| Permanent | Provisional | Citation | Date | Site | Discoverer(s) | Category | Diam. | Ref |
| 40001 | 1998 HB$_{88}$ | — | April 21, 1998 | Socorro | LINEAR | · | 2.3 km | MPC · JPL |
| 40002 | 1998 HS$_{89}$ | — | April 21, 1998 | Socorro | LINEAR | WIT | 2.3 km | MPC · JPL |
| 40003 | 1998 HW$_{92}$ | — | April 21, 1998 | Socorro | LINEAR | THM | 5.6 km | MPC · JPL |
| 40004 | 1998 HF$_{94}$ | — | April 21, 1998 | Socorro | LINEAR | · | 3.6 km | MPC · JPL |
| 40005 | 1998 HA$_{96}$ | — | April 21, 1998 | Socorro | LINEAR | MAR | 2.7 km | MPC · JPL |
| 40006 | 1998 HV$_{101}$ | — | April 24, 1998 | Reedy Creek | J. Broughton | · | 3.8 km | MPC · JPL |
| 40007 Vieuxtemps | 1998 HV$_{102}$ | Vieuxtemps | April 25, 1998 | La Silla | E. W. Elst | · | 6.0 km | MPC · JPL |
| 40008 | 1998 HN$_{111}$ | — | April 23, 1998 | Socorro | LINEAR | V | 2.1 km | MPC · JPL |
| 40009 | 1998 HG$_{119}$ | — | April 23, 1998 | Socorro | LINEAR | · | 4.0 km | MPC · JPL |
| 40010 | 1998 HF$_{122}$ | — | April 23, 1998 | Socorro | LINEAR | · | 12 km | MPC · JPL |
| 40011 | 1998 HK$_{123}$ | — | April 23, 1998 | Socorro | LINEAR | · | 5.3 km | MPC · JPL |
| 40012 | 1998 HP$_{123}$ | — | April 23, 1998 | Socorro | LINEAR | · | 2.7 km | MPC · JPL |
| 40013 | 1998 HB$_{124}$ | — | April 23, 1998 | Socorro | LINEAR | · | 3.5 km | MPC · JPL |
| 40014 | 1998 HL$_{124}$ | — | April 23, 1998 | Socorro | LINEAR | · | 3.5 km | MPC · JPL |
| 40015 | 1998 HB$_{125}$ | — | April 23, 1998 | Socorro | LINEAR | MAR | 2.8 km | MPC · JPL |
| 40016 | 1998 HT$_{127}$ | — | April 18, 1998 | Socorro | LINEAR | NYS | 1.6 km | MPC · JPL |
| 40017 | 1998 HY$_{127}$ | — | April 18, 1998 | Socorro | LINEAR | · | 2.5 km | MPC · JPL |
| 40018 | 1998 HH$_{134}$ | — | April 19, 1998 | Socorro | LINEAR | · | 2.7 km | MPC · JPL |
| 40019 | 1998 HR$_{136}$ | — | April 20, 1998 | Socorro | LINEAR | · | 2.2 km | MPC · JPL |
| 40020 | 1998 HX$_{136}$ | — | April 20, 1998 | Socorro | LINEAR | · | 2.8 km | MPC · JPL |
| 40021 | 1998 HG$_{137}$ | — | April 20, 1998 | Socorro | LINEAR | V | 2.0 km | MPC · JPL |
| 40022 | 1998 HP$_{146}$ | — | April 23, 1998 | Socorro | LINEAR | · | 4.4 km | MPC · JPL |
| 40023 ANPCEN | 1998 HU$_{148}$ | ANPCEN | April 25, 1998 | La Silla | E. W. Elst | · | 3.0 km | MPC · JPL |
| 40024 | 1998 HW$_{148}$ | — | April 25, 1998 | La Silla | E. W. Elst | · | 4.4 km | MPC · JPL |
| 40025 | 1998 HQ$_{149}$ | — | April 25, 1998 | La Silla | E. W. Elst | · | 3.1 km | MPC · JPL |
| 40026 | 1998 JF$_3$ | — | May 1, 1998 | Anderson Mesa | LONEOS | · | 3.5 km | MPC · JPL |
| 40027 | 1998 JH$_4$ | — | May 15, 1998 | Woomera | F. B. Zoltowski | HEN | 3.0 km | MPC · JPL |
| 40028 | 1998 KO$_1$ | — | May 18, 1998 | Anderson Mesa | LONEOS | · | 3.2 km | MPC · JPL |
| 40029 | 1998 KG$_2$ | — | May 22, 1998 | Socorro | LINEAR | · | 8.0 km | MPC · JPL |
| 40030 | 1998 KL$_2$ | — | May 22, 1998 | Socorro | LINEAR | MIT | 5.1 km | MPC · JPL |
| 40031 | 1998 KP$_2$ | — | May 22, 1998 | Socorro | LINEAR | HNS | 4.6 km | MPC · JPL |
| 40032 | 1998 KD$_{10}$ | — | May 26, 1998 | Xinglong | SCAP | · | 3.2 km | MPC · JPL |
| 40033 | 1998 KX$_{10}$ | — | May 22, 1998 | Kitt Peak | Spacewatch | · | 3.1 km | MPC · JPL |
| 40034 | 1998 KB$_{11}$ | — | May 22, 1998 | Kitt Peak | Spacewatch | · | 6.6 km | MPC · JPL |
| 40035 | 1998 KO$_{15}$ | — | May 22, 1998 | Socorro | LINEAR | EUN | 2.9 km | MPC · JPL |
| 40036 | 1998 KT$_{19}$ | — | May 22, 1998 | Socorro | LINEAR | · | 2.4 km | MPC · JPL |
| 40037 | 1998 KS$_{22}$ | — | May 22, 1998 | Socorro | LINEAR | AEO | 4.0 km | MPC · JPL |
| 40038 | 1998 KT$_{22}$ | — | May 22, 1998 | Socorro | LINEAR | · | 3.1 km | MPC · JPL |
| 40039 | 1998 KW$_{26}$ | — | May 21, 1998 | Mallorca | Á. López J., R. Pacheco | MIT | 6.0 km | MPC · JPL |
| 40040 | 1998 KC$_{27}$ | — | May 22, 1998 | Socorro | LINEAR | · | 3.0 km | MPC · JPL |
| 40041 | 1998 KK$_{29}$ | — | May 22, 1998 | Socorro | LINEAR | · | 2.1 km | MPC · JPL |
| 40042 | 1998 KM$_{30}$ | — | May 22, 1998 | Socorro | LINEAR | · | 3.4 km | MPC · JPL |
| 40043 | 1998 KV$_{30}$ | — | May 22, 1998 | Socorro | LINEAR | · | 4.9 km | MPC · JPL |
| 40044 | 1998 KH$_{32}$ | — | May 22, 1998 | Socorro | LINEAR | · | 2.8 km | MPC · JPL |
| 40045 | 1998 KZ$_{33}$ | — | May 22, 1998 | Socorro | LINEAR | · | 3.9 km | MPC · JPL |
| 40046 | 1998 KT$_{34}$ | — | May 22, 1998 | Socorro | LINEAR | · | 6.7 km | MPC · JPL |
| 40047 | 1998 KW$_{34}$ | — | May 22, 1998 | Socorro | LINEAR | · | 1.8 km | MPC · JPL |
| 40048 | 1998 KA$_{36}$ | — | May 22, 1998 | Socorro | LINEAR | · | 11 km | MPC · JPL |
| 40049 | 1998 KB$_{37}$ | — | May 22, 1998 | Socorro | LINEAR | · | 4.2 km | MPC · JPL |
| 40050 | 1998 KP$_{37}$ | — | May 22, 1998 | Socorro | LINEAR | · | 2.8 km | MPC · JPL |
| 40051 | 1998 KY$_{37}$ | — | May 22, 1998 | Socorro | LINEAR | · | 3.7 km | MPC · JPL |
| 40052 | 1998 KB$_{38}$ | — | May 22, 1998 | Socorro | LINEAR | · | 3.3 km | MPC · JPL |
| 40053 | 1998 KH$_{41}$ | — | May 22, 1998 | Socorro | LINEAR | · | 3.4 km | MPC · JPL |
| 40054 | 1998 KP$_{42}$ | — | May 27, 1998 | Anderson Mesa | LONEOS | · | 3.8 km | MPC · JPL |
| 40055 | 1998 KS$_{43}$ | — | May 24, 1998 | Socorro | LINEAR | · | 5.1 km | MPC · JPL |
| 40056 | 1998 KT$_{44}$ | — | May 22, 1998 | Socorro | LINEAR | · | 5.0 km | MPC · JPL |
| 40057 | 1998 KJ$_{45}$ | — | May 22, 1998 | Socorro | LINEAR | · | 4.9 km | MPC · JPL |
| 40058 | 1998 KL$_{46}$ | — | May 22, 1998 | Socorro | LINEAR | ERI | 5.7 km | MPC · JPL |
| 40059 | 1998 KR$_{47}$ | — | May 22, 1998 | Socorro | LINEAR | · | 5.0 km | MPC · JPL |
| 40060 | 1998 KC$_{48}$ | — | May 22, 1998 | Socorro | LINEAR | · | 3.1 km | MPC · JPL |
| 40061 | 1998 KQ$_{48}$ | — | May 22, 1998 | Socorro | LINEAR | · | 3.9 km | MPC · JPL |
| 40062 | 1998 KP$_{49}$ | — | May 23, 1998 | Socorro | LINEAR | · | 4.8 km | MPC · JPL |
| 40063 | 1998 KV$_{49}$ | — | May 23, 1998 | Socorro | LINEAR | · | 3.3 km | MPC · JPL |
| 40064 | 1998 KW$_{50}$ | — | May 23, 1998 | Socorro | LINEAR | · | 9.4 km | MPC · JPL |
| 40065 | 1998 KX$_{50}$ | — | May 23, 1998 | Socorro | LINEAR | · | 3.8 km | MPC · JPL |
| 40066 | 1998 KF$_{51}$ | — | May 23, 1998 | Socorro | LINEAR | · | 5.0 km | MPC · JPL |
| 40067 | 1998 KA$_{54}$ | — | May 23, 1998 | Socorro | LINEAR | · | 5.0 km | MPC · JPL |
| 40068 | 1998 KS$_{54}$ | — | May 23, 1998 | Socorro | LINEAR | · | 3.2 km | MPC · JPL |
| 40069 | 1998 KQ$_{55}$ | — | May 23, 1998 | Socorro | LINEAR | · | 2.9 km | MPC · JPL |
| 40070 | 1998 KG$_{58}$ | — | May 26, 1998 | Socorro | LINEAR | MAR | 3.3 km | MPC · JPL |
| 40071 | 1998 KL$_{59}$ | — | May 23, 1998 | Socorro | LINEAR | · | 2.3 km | MPC · JPL |
| 40072 | 1998 KZ$_{59}$ | — | May 23, 1998 | Socorro | LINEAR | · | 2.7 km | MPC · JPL |
| 40073 | 1998 KN$_{60}$ | — | May 23, 1998 | Socorro | LINEAR | · | 3.2 km | MPC · JPL |
| 40074 | 1998 KN$_{63}$ | — | May 22, 1998 | Socorro | LINEAR | · | 4.2 km | MPC · JPL |
| 40075 | 1998 KS$_{63}$ | — | May 22, 1998 | Socorro | LINEAR | · | 3.6 km | MPC · JPL |
| 40076 | 1998 LB | — | June 2, 1998 | Anderson Mesa | LONEOS | MAR | 3.1 km | MPC · JPL |
| 40077 | 1998 MZ$_4$ | — | June 19, 1998 | Kitt Peak | Spacewatch | ADE · | 3.0 km | MPC · JPL |
| 40078 | 1998 ML$_8$ | — | June 19, 1998 | Socorro | LINEAR | MIT | 5.7 km | MPC · JPL |
| 40079 | 1998 MD$_9$ | — | June 19, 1998 | Socorro | LINEAR | EUN | 5.1 km | MPC · JPL |
| 40080 | 1998 MY$_9$ | — | June 19, 1998 | Socorro | LINEAR | WAT | 7.5 km | MPC · JPL |
| 40081 Rault | 1998 MG$_{14}$ | Rault | June 25, 1998 | Caussols | ODAS | MAR | 3.8 km | MPC · JPL |
| 40082 | 1998 ML$_{16}$ | — | June 27, 1998 | Kitt Peak | Spacewatch | · | 6.6 km | MPC · JPL |
| 40083 | 1998 MS$_{18}$ | — | June 19, 1998 | Caussols | ODAS | · | 3.2 km | MPC · JPL |
| 40084 | 1998 MS$_{22}$ | — | June 24, 1998 | Socorro | LINEAR | · | 4.7 km | MPC · JPL |
| 40085 | 1998 MW$_{32}$ | — | June 24, 1998 | Socorro | LINEAR | · | 2.5 km | MPC · JPL |
| 40086 | 1998 MK$_{33}$ | — | June 24, 1998 | Socorro | LINEAR | · | 8.2 km | MPC · JPL |
| 40087 | 1998 MU$_{34}$ | — | June 24, 1998 | Socorro | LINEAR | EUN | 3.6 km | MPC · JPL |
| 40088 | 1998 MJ$_{37}$ | — | June 23, 1998 | Anderson Mesa | LONEOS | · | 4.4 km | MPC · JPL |
| 40089 | 1998 MH$_{40}$ | — | June 26, 1998 | La Silla | E. W. Elst | · | 5.0 km | MPC · JPL |
| 40090 | 1998 MZ$_{40}$ | — | June 28, 1998 | La Silla | E. W. Elst | · | 6.4 km | MPC · JPL |
| 40091 | 1998 MH$_{41}$ | — | June 28, 1998 | La Silla | E. W. Elst | · | 5.9 km | MPC · JPL |
| 40092 Memel | 1998 ME$_{47}$ | Memel | June 28, 1998 | La Silla | E. W. Elst | GEF | 3.2 km | MPC · JPL |
| 40093 | 1998 NH | — | July 15, 1998 | Prescott | P. G. Comba | · | 4.5 km | MPC · JPL |
| 40094 | 1998 NN | — | July 15, 1998 | Anderson Mesa | LONEOS | · | 3.7 km | MPC · JPL |
| 40095 | 1998 OV$_4$ | — | July 29, 1998 | Višnjan Observatory | Višnjan Obs. | · | 7.4 km | MPC · JPL |
| 40096 | 1998 OR$_9$ | — | July 26, 1998 | La Silla | E. W. Elst | · | 8.7 km | MPC · JPL |
| 40097 | 1998 OB$_{13}$ | — | July 26, 1998 | La Silla | E. W. Elst | · | 13 km | MPC · JPL |
| 40098 | 1998 OW$_{14}$ | — | July 26, 1998 | La Silla | E. W. Elst | · | 5.9 km | MPC · JPL |
| 40099 | 1998 OB$_{15}$ | — | July 26, 1998 | La Silla | E. W. Elst | · | 5.4 km | MPC · JPL |
| 40100 | 1998 PV | — | August 12, 1998 | Woomera | F. B. Zoltowski | · | 4.4 km | MPC · JPL |

## 40101–40200

| Designation | Designation | Designation | Discovery | Discovery | Discovery | Properties | Properties | Ref |
| Permanent | Provisional | Citation | Date | Site | Discoverer(s) | Category | Diam. | Ref |
| 40101 | 1998 QX | — | August 19, 1998 | Haleakala | NEAT | PAL | 5.1 km | MPC · JPL |
| 40102 | 1998 QU$_1$ | — | August 19, 1998 | Haleakala | NEAT | · | 4.1 km | MPC · JPL |
| 40103 | 1998 QX$_3$ | — | August 17, 1998 | Višnjan Observatory | Višnjan Obs. | · | 11 km | MPC · JPL |
| 40104 Stevekerr | 1998 QE$_4$ | Stevekerr | August 17, 1998 | Reedy Creek | J. Broughton | EOS | 8.8 km | MPC · JPL |
| 40105 | 1998 QL$_4$ | — | August 17, 1998 | Woomera | F. B. Zoltowski | KOR · | 3.8 km | MPC · JPL |
| 40106 Erben | 1998 QW$_5$ | Erben | August 20, 1998 | Ondřejov | P. Pravec | · | 4.8 km | MPC · JPL |
| 40107 | 1998 QB$_7$ | — | August 17, 1998 | Socorro | LINEAR | · | 3.9 km | MPC · JPL |
| 40108 | 1998 QU$_7$ | — | August 17, 1998 | Socorro | LINEAR | · | 10 km | MPC · JPL |
| 40109 | 1998 QC$_8$ | — | August 17, 1998 | Socorro | LINEAR | · | 6.6 km | MPC · JPL |
| 40110 | 1998 QM$_9$ | — | August 17, 1998 | Socorro | LINEAR | · | 8.0 km | MPC · JPL |
| 40111 | 1998 QK$_{12}$ | — | August 17, 1998 | Socorro | LINEAR | EOS | 5.6 km | MPC · JPL |
| 40112 | 1998 QM$_{13}$ | — | August 17, 1998 | Socorro | LINEAR | · | 3.5 km | MPC · JPL |
| 40113 | 1998 QZ$_{13}$ | — | August 17, 1998 | Socorro | LINEAR | · | 6.1 km | MPC · JPL |
| 40114 | 1998 QB$_{15}$ | — | August 17, 1998 | Socorro | LINEAR | GEF | 3.9 km | MPC · JPL |
| 40115 | 1998 QB$_{19}$ | — | August 17, 1998 | Socorro | LINEAR | EOS | 7.0 km | MPC · JPL |
| 40116 | 1998 QD$_{19}$ | — | August 17, 1998 | Socorro | LINEAR | EOS | 4.8 km | MPC · JPL |
| 40117 | 1998 QG$_{21}$ | — | August 17, 1998 | Socorro | LINEAR | THM | 6.3 km | MPC · JPL |
| 40118 | 1998 QX$_{22}$ | — | August 17, 1998 | Socorro | LINEAR | · | 8.9 km | MPC · JPL |
| 40119 | 1998 QB$_{23}$ | — | August 17, 1998 | Socorro | LINEAR | HYG | 8.8 km | MPC · JPL |
| 40120 | 1998 QT$_{23}$ | — | August 17, 1998 | Socorro | LINEAR | EOS | 11 km | MPC · JPL |
| 40121 | 1998 QA$_{29}$ | — | August 18, 1998 | Reedy Creek | J. Broughton | · | 8.1 km | MPC · JPL |
| 40122 | 1998 QZ$_{30}$ | — | August 17, 1998 | Socorro | LINEAR | THM | 5.6 km | MPC · JPL |
| 40123 | 1998 QC$_{31}$ | — | August 17, 1998 | Socorro | LINEAR | · | 14 km | MPC · JPL |
| 40124 | 1998 QN$_{35}$ | — | August 17, 1998 | Socorro | LINEAR | KOR | 5.0 km | MPC · JPL |
| 40125 | 1998 QU$_{38}$ | — | August 17, 1998 | Socorro | LINEAR | EOS | 4.9 km | MPC · JPL |
| 40126 | 1998 QL$_{40}$ | — | August 17, 1998 | Socorro | LINEAR | · | 3.4 km | MPC · JPL |
| 40127 | 1998 QD$_{43}$ | — | August 17, 1998 | Socorro | LINEAR | · | 9.8 km | MPC · JPL |
| 40128 | 1998 QL$_{43}$ | — | August 17, 1998 | Socorro | LINEAR | · | 11 km | MPC · JPL |
| 40129 | 1998 QY$_{45}$ | — | August 17, 1998 | Socorro | LINEAR | · | 6.6 km | MPC · JPL |
| 40130 | 1998 QV$_{47}$ | — | August 17, 1998 | Socorro | LINEAR | · | 6.7 km | MPC · JPL |
| 40131 | 1998 QJ$_{48}$ | — | August 17, 1998 | Socorro | LINEAR | · | 9.1 km | MPC · JPL |
| 40132 | 1998 QL$_{48}$ | — | August 17, 1998 | Socorro | LINEAR | HYG | 9.5 km | MPC · JPL |
| 40133 | 1998 QF$_{53}$ | — | August 20, 1998 | Anderson Mesa | LONEOS | · | 10 km | MPC · JPL |
| 40134 Marsili | 1998 QO$_{53}$ | Marsili | August 27, 1998 | Colleverde | V. S. Casulli | · | 4.3 km | MPC · JPL |
| 40135 | 1998 QS$_{53}$ | — | August 26, 1998 | Farra d'Isonzo | Farra d'Isonzo | EOS | 5.0 km | MPC · JPL |
| 40136 | 1998 QS$_{56}$ | — | August 30, 1998 | Kitt Peak | Spacewatch | THM | 6.3 km | MPC · JPL |
| 40137 | 1998 QO$_{60}$ | — | August 28, 1998 | Ondřejov | L. Kotková | ADE | 11 km | MPC · JPL |
| 40138 | 1998 QF$_{63}$ | — | August 30, 1998 | Xinglong | SCAP | EOS | 4.4 km | MPC · JPL |
| 40139 | 1998 QL$_{64}$ | — | August 24, 1998 | Socorro | LINEAR | MAR | 4.5 km | MPC · JPL |
| 40140 | 1998 QQ$_{68}$ | — | August 24, 1998 | Socorro | LINEAR | TIR | 7.9 km | MPC · JPL |
| 40141 | 1998 QL$_{70}$ | — | August 24, 1998 | Socorro | LINEAR | ALA | 7.1 km | MPC · JPL |
| 40142 | 1998 QT$_{70}$ | — | August 24, 1998 | Socorro | LINEAR | · | 9.4 km | MPC · JPL |
| 40143 | 1998 QW$_{70}$ | — | August 24, 1998 | Socorro | LINEAR | · | 13 km | MPC · JPL |
| 40144 | 1998 QC$_{71}$ | — | August 24, 1998 | Socorro | LINEAR | · | 9.4 km | MPC · JPL |
| 40145 | 1998 QF$_{71}$ | — | August 24, 1998 | Socorro | LINEAR | · | 5.8 km | MPC · JPL |
| 40146 | 1998 QR$_{71}$ | — | August 24, 1998 | Socorro | LINEAR | · | 9.2 km | MPC · JPL |
| 40147 | 1998 QB$_{72}$ | — | August 24, 1998 | Socorro | LINEAR | · | 14 km | MPC · JPL |
| 40148 | 1998 QB$_{73}$ | — | August 24, 1998 | Socorro | LINEAR | · | 9.3 km | MPC · JPL |
| 40149 | 1998 QF$_{74}$ | — | August 24, 1998 | Socorro | LINEAR | EOS | 5.8 km | MPC · JPL |
| 40150 | 1998 QF$_{75}$ | — | August 24, 1998 | Socorro | LINEAR | MEL | 12 km | MPC · JPL |
| 40151 | 1998 QO$_{75}$ | — | August 24, 1998 | Socorro | LINEAR | · | 6.4 km | MPC · JPL |
| 40152 | 1998 QA$_{77}$ | — | August 24, 1998 | Socorro | LINEAR | EOS | 6.8 km | MPC · JPL |
| 40153 | 1998 QD$_{79}$ | — | August 24, 1998 | Socorro | LINEAR | · | 9.6 km | MPC · JPL |
| 40154 | 1998 QE$_{83}$ | — | August 24, 1998 | Socorro | LINEAR | · | 7.5 km | MPC · JPL |
| 40155 | 1998 QA$_{84}$ | — | August 24, 1998 | Socorro | LINEAR | · | 7.6 km | MPC · JPL |
| 40156 | 1998 QH$_{86}$ | — | August 24, 1998 | Socorro | LINEAR | URS | 5.9 km | MPC · JPL |
| 40157 | 1998 QA$_{88}$ | — | August 24, 1998 | Socorro | LINEAR | EOS | 8.4 km | MPC · JPL |
| 40158 | 1998 QP$_{88}$ | — | August 24, 1998 | Socorro | LINEAR | · | 7.7 km | MPC · JPL |
| 40159 | 1998 QC$_{90}$ | — | August 24, 1998 | Socorro | LINEAR | · | 5.4 km | MPC · JPL |
| 40160 | 1998 QL$_{91}$ | — | August 28, 1998 | Socorro | LINEAR | H | 1.7 km | MPC · JPL |
| 40161 | 1998 QO$_{91}$ | — | August 28, 1998 | Socorro | LINEAR | EUN | 5.2 km | MPC · JPL |
| 40162 | 1998 QK$_{95}$ | — | August 19, 1998 | Socorro | LINEAR | EOS | 7.1 km | MPC · JPL |
| 40163 | 1998 QC$_{96}$ | — | August 19, 1998 | Socorro | LINEAR | EOS | 4.3 km | MPC · JPL |
| 40164 | 1998 QW$_{99}$ | — | August 26, 1998 | La Silla | E. W. Elst | · | 5.5 km | MPC · JPL |
| 40165 | 1998 QP$_{102}$ | — | August 26, 1998 | La Silla | E. W. Elst | EOS | 9.8 km | MPC · JPL |
| 40166 | 1998 QW$_{102}$ | — | August 26, 1998 | La Silla | E. W. Elst | · | 8.1 km | MPC · JPL |
| 40167 | 1998 QF$_{103}$ | — | August 26, 1998 | La Silla | E. W. Elst | · | 9.0 km | MPC · JPL |
| 40168 | 1998 QW$_{104}$ | — | August 26, 1998 | La Silla | E. W. Elst | · | 8.2 km | MPC · JPL |
| 40169 | 1998 QG$_{105}$ | — | August 25, 1998 | La Silla | E. W. Elst | · | 8.4 km | MPC · JPL |
| 40170 | 1998 RK | — | September 1, 1998 | Woomera | F. B. Zoltowski | ALA | 8.5 km | MPC · JPL |
| 40171 | 1998 RS | — | September 11, 1998 | Zeno | T. Stafford | URS | 10 km | MPC · JPL |
| 40172 | 1998 RQ$_6$ | — | September 15, 1998 | Anderson Mesa | LONEOS | · | 7.7 km | MPC · JPL |
| 40173 | 1998 RE$_7$ | — | September 12, 1998 | Kitt Peak | Spacewatch | KOR | 4.1 km | MPC · JPL |
| 40174 | 1998 RY$_{12}$ | — | September 14, 1998 | Kitt Peak | Spacewatch | URS | 8.8 km | MPC · JPL |
| 40175 | 1998 RE$_{16}$ | — | September 14, 1998 | Xinglong | SCAP | · | 9.6 km | MPC · JPL |
| 40176 | 1998 RH$_{27}$ | — | September 14, 1998 | Socorro | LINEAR | EOS | 6.2 km | MPC · JPL |
| 40177 | 1998 RU$_{28}$ | — | September 14, 1998 | Socorro | LINEAR | THM | 7.3 km | MPC · JPL |
| 40178 | 1998 RU$_{36}$ | — | September 14, 1998 | Socorro | LINEAR | · | 8.3 km | MPC · JPL |
| 40179 | 1998 RM$_{38}$ | — | September 14, 1998 | Socorro | LINEAR | EOS | 5.1 km | MPC · JPL |
| 40180 | 1998 RR$_{48}$ | — | September 14, 1998 | Socorro | LINEAR | · | 6.3 km | MPC · JPL |
| 40181 | 1998 RN$_{50}$ | — | September 14, 1998 | Socorro | LINEAR | · | 6.8 km | MPC · JPL |
| 40182 | 1998 RO$_{55}$ | — | September 14, 1998 | Socorro | LINEAR | FLO | 2.6 km | MPC · JPL |
| 40183 | 1998 RP$_{58}$ | — | September 14, 1998 | Socorro | LINEAR | · | 5.3 km | MPC · JPL |
| 40184 | 1998 RQ$_{58}$ | — | September 14, 1998 | Socorro | LINEAR | · | 13 km | MPC · JPL |
| 40185 | 1998 RL$_{60}$ | — | September 14, 1998 | Socorro | LINEAR | EOS | 5.5 km | MPC · JPL |
| 40186 | 1998 RN$_{60}$ | — | September 14, 1998 | Socorro | LINEAR | · | 5.9 km | MPC · JPL |
| 40187 | 1998 RR$_{61}$ | — | September 14, 1998 | Socorro | LINEAR | 7:4 | 12 km | MPC · JPL |
| 40188 | 1998 RQ$_{64}$ | — | September 14, 1998 | Socorro | LINEAR | · | 7.8 km | MPC · JPL |
| 40189 | 1998 RR$_{67}$ | — | September 14, 1998 | Socorro | LINEAR | · | 7.9 km | MPC · JPL |
| 40190 | 1998 RL$_{74}$ | — | September 14, 1998 | Socorro | LINEAR | HYG | 8.0 km | MPC · JPL |
| 40191 | 1998 RM$_{75}$ | — | September 14, 1998 | Socorro | LINEAR | · | 11 km | MPC · JPL |
| 40192 | 1998 RV$_{75}$ | — | September 14, 1998 | Socorro | LINEAR | · | 4.6 km | MPC · JPL |
| 40193 | 1998 RF$_{77}$ | — | September 14, 1998 | Socorro | LINEAR | · | 12 km | MPC · JPL |
| 40194 | 1998 RG$_{78}$ | — | September 14, 1998 | Socorro | LINEAR | · | 5.7 km | MPC · JPL |
| 40195 | 1998 RU$_{78}$ | — | September 14, 1998 | Socorro | LINEAR | HYG | 10 km | MPC · JPL |
| 40196 | 1998 RM$_{80}$ | — | September 14, 1998 | Socorro | LINEAR | · | 12 km | MPC · JPL |
| 40197 | 1998 RP$_{80}$ | — | September 14, 1998 | Socorro | LINEAR | VER | 15 km | MPC · JPL |
| 40198 Azarkhalatbari | 1998 SA$_1$ | Azarkhalatbari | September 16, 1998 | Caussols | ODAS | THM | 8.6 km | MPC · JPL |
| 40199 | 1998 SE$_1$ | — | September 16, 1998 | Caussols | ODAS | EOS | 5.6 km | MPC · JPL |
| 40200 | 1998 SW$_9$ | — | September 18, 1998 | Višnjan Observatory | Višnjan Obs. | · | 8.3 km | MPC · JPL |

## 40201–40300

| Designation | Designation | Designation | Discovery | Discovery | Discovery | Properties | Properties | Ref |
| Permanent | Provisional | Citation | Date | Site | Discoverer(s) | Category | Diam. | Ref |
| 40201 Besely | 1998 SO$_{13}$ | Besely | September 21, 1998 | Caussols | ODAS | · | 9.6 km | MPC · JPL |
| 40202 | 1998 SN$_{26}$ | — | September 24, 1998 | Kleť | Kleť Obs. | · | 9.0 km | MPC · JPL |
| 40203 | 1998 SP$_{27}$ | — | September 24, 1998 | Catalina | CSS | H | 1.2 km | MPC · JPL |
| 40204 | 1998 SV$_{27}$ | — | September 23, 1998 | Goodricke-Pigott | R. A. Tucker | · | 11 km | MPC · JPL |
| 40205 | 1998 SU$_{30}$ | — | September 19, 1998 | Kitt Peak | Spacewatch | · | 7.3 km | MPC · JPL |
| 40206 Lhenice | 1998 SB$_{36}$ | Lhenice | September 26, 1998 | Kleť | J. Tichá, M. Tichý | · | 7.4 km | MPC · JPL |
| 40207 | 1998 SE$_{44}$ | — | September 23, 1998 | Kitt Peak | Spacewatch | · | 17 km | MPC · JPL |
| 40208 | 1998 SK$_{53}$ | — | September 16, 1998 | Anderson Mesa | LONEOS | · | 11 km | MPC · JPL |
| 40209 Morrispodolak | 1998 SU$_{55}$ | Morrispodolak | September 16, 1998 | Anderson Mesa | LONEOS | HYG | 8.0 km | MPC · JPL |
| 40210 Peixinho | 1998 SL$_{56}$ | Peixinho | September 16, 1998 | Anderson Mesa | LONEOS | EMA | 10 km | MPC · JPL |
| 40211 | 1998 SC$_{57}$ | — | September 17, 1998 | Anderson Mesa | LONEOS | · | 6.9 km | MPC · JPL |
| 40212 | 1998 SC$_{58}$ | — | September 17, 1998 | Anderson Mesa | LONEOS | ALA | 8.3 km | MPC · JPL |
| 40213 | 1998 SQ$_{58}$ | — | September 17, 1998 | Anderson Mesa | LONEOS | · | 13 km | MPC · JPL |
| 40214 | 1998 SR$_{63}$ | — | September 29, 1998 | Xinglong | SCAP | · | 6.0 km | MPC · JPL |
| 40215 | 1998 SZ$_{69}$ | — | September 21, 1998 | Socorro | LINEAR | · | 9.0 km | MPC · JPL |
| 40216 | 1998 SF$_{79}$ | — | September 26, 1998 | Socorro | LINEAR | EOS | 5.7 km | MPC · JPL |
| 40217 | 1998 SM$_{87}$ | — | September 26, 1998 | Socorro | LINEAR | · | 8.6 km | MPC · JPL |
| 40218 | 1998 SQ$_{97}$ | — | September 26, 1998 | Socorro | LINEAR | URS | 9.6 km | MPC · JPL |
| 40219 | 1998 SX$_{111}$ | — | September 26, 1998 | Socorro | LINEAR | · | 11 km | MPC · JPL |
| 40220 | 1998 SH$_{122}$ | — | September 26, 1998 | Socorro | LINEAR | · | 9.4 km | MPC · JPL |
| 40221 | 1998 SG$_{136}$ | — | September 26, 1998 | Socorro | LINEAR | · | 12 km | MPC · JPL |
| 40222 | 1998 SJ$_{137}$ | — | September 26, 1998 | Socorro | LINEAR | · | 7.1 km | MPC · JPL |
| 40223 | 1998 SX$_{142}$ | — | September 26, 1998 | Socorro | LINEAR | AEG | 12 km | MPC · JPL |
| 40224 | 1998 SJ$_{143}$ | — | September 23, 1998 | Caussols | ODAS | EOS | 4.5 km | MPC · JPL |
| 40225 | 1998 SX$_{144}$ | — | September 20, 1998 | La Silla | E. W. Elst | THM | 6.6 km | MPC · JPL |
| 40226 | 1998 SA$_{145}$ | — | September 20, 1998 | La Silla | E. W. Elst | MEL | 11 km | MPC · JPL |
| 40227 Tahiti | 1998 SR$_{145}$ | Tahiti | September 20, 1998 | La Silla | E. W. Elst | HIL · 3:2 | 17 km | MPC · JPL |
| 40228 | 1998 TR$_1$ | — | October 12, 1998 | Reedy Creek | J. Broughton | · | 3.7 km | MPC · JPL |
| 40229 | 1998 TO$_3$ | — | October 14, 1998 | Socorro | LINEAR | H | 1.3 km | MPC · JPL |
| 40230 Rožmberk | 1998 TJ$_6$ | Rožmberk | October 14, 1998 | Kleť | M. Tichý | THM | 7.6 km | MPC · JPL |
| 40231 | 1998 TS$_6$ | — | October 14, 1998 | Xinglong | SCAP | H | 1.2 km | MPC · JPL |
| 40232 | 1998 UD | — | October 16, 1998 | Catalina | CSS | · | 3.4 km | MPC · JPL |
| 40233 Baradeau | 1998 UH$_2$ | Baradeau | October 20, 1998 | Caussols | ODAS | · | 8.6 km | MPC · JPL |
| 40234 | 1998 UG$_4$ | — | October 21, 1998 | Reedy Creek | J. Broughton | · | 5.6 km | MPC · JPL |
| 40235 | 1998 UX$_7$ | — | October 23, 1998 | Višnjan Observatory | K. Korlević | · | 12 km | MPC · JPL |
| 40236 | 1998 UF$_{33}$ | — | October 28, 1998 | Socorro | LINEAR | · | 5.7 km | MPC · JPL |
| 40237 | 1998 VM$_6$ | — | November 11, 1998 | Nachi-Katsuura | Y. Shimizu, T. Urata | L4 · slow | 22 km | MPC · JPL |
| 40238 | 1998 VR$_{13}$ | — | November 10, 1998 | Socorro | LINEAR | 3:2 | 11 km | MPC · JPL |
| 40239 | 1998 VY$_{16}$ | — | November 10, 1998 | Socorro | LINEAR | · | 5.9 km | MPC · JPL |
| 40240 | 1998 VV$_{37}$ | — | November 10, 1998 | Socorro | LINEAR | · | 10 km | MPC · JPL |
| 40241 Deienno | 1998 VA$_{46}$ | Deienno | November 15, 1998 | Anderson Mesa | LONEOS | H | 1.6 km | MPC · JPL |
| 40242 | 1998 VU$_{46}$ | — | November 14, 1998 | Kitt Peak | Spacewatch | HYG | 7.8 km | MPC · JPL |
| 40243 | 1998 WH$_1$ | — | November 18, 1998 | Catalina | CSS | PHO | 3.0 km | MPC · JPL |
| 40244 | 1998 WP$_4$ | — | November 17, 1998 | Catalina | CSS | H | 3.1 km | MPC · JPL |
| 40245 | 1998 WO$_7$ | — | November 23, 1998 | Socorro | LINEAR | · | 1.7 km | MPC · JPL |
| 40246 | 1998 WV$_{18}$ | — | November 21, 1998 | Socorro | LINEAR | 3:2 | 20 km | MPC · JPL |
| 40247 | 1998 XK$_4$ | — | December 11, 1998 | Socorro | LINEAR | H | 1.7 km | MPC · JPL |
| 40248 Yukikajiura | 1998 XF$_5$ | Yukikajiura | December 12, 1998 | Goodricke-Pigott | R. A. Tucker | · | 6.4 km | MPC · JPL |
| 40249 | 1998 XM$_{11}$ | — | December 13, 1998 | Oizumi | T. Kobayashi | · | 2.7 km | MPC · JPL |
| 40250 | 1998 XG$_{16}$ | — | December 14, 1998 | Socorro | LINEAR | H | 1.7 km | MPC · JPL |
| 40251 | 1998 XK$_{87}$ | — | December 15, 1998 | Socorro | LINEAR | · | 2.4 km | MPC · JPL |
| 40252 | 1998 YE$_6$ | — | December 22, 1998 | Catalina | CSS | PHO | 2.0 km | MPC · JPL |
| 40253 | 1999 BB$_1$ | — | January 17, 1999 | Catalina | CSS | H | 1.9 km | MPC · JPL |
| 40254 | 1999 BB$_{26}$ | — | January 21, 1999 | Monte Agliale | S. Donati, M. M. M. Santangelo | · | 5.6 km | MPC · JPL |
| 40255 | 1999 CN$_4$ | — | February 12, 1999 | Prescott | P. G. Comba | · | 2.0 km | MPC · JPL |
| 40256 | 1999 CM$_6$ | — | February 10, 1999 | Socorro | LINEAR | H | 1.4 km | MPC · JPL |
| 40257 | 1999 CZ$_{56}$ | — | February 10, 1999 | Socorro | LINEAR | · | 1.9 km | MPC · JPL |
| 40258 | 1999 CF$_{61}$ | — | February 12, 1999 | Socorro | LINEAR | · | 1.8 km | MPC · JPL |
| 40259 | 1999 CZ$_{85}$ | — | February 10, 1999 | Socorro | LINEAR | V | 3.0 km | MPC · JPL |
| 40260 | 1999 CU$_{98}$ | — | February 10, 1999 | Socorro | LINEAR | · | 3.6 km | MPC · JPL |
| 40261 | 1999 CD$_{117}$ | — | February 12, 1999 | Socorro | LINEAR | V | 2.7 km | MPC · JPL |
| 40262 | 1999 CF$_{156}$ | — | February 7, 1999 | Kitt Peak | Spacewatch | L4 | 14 km | MPC · JPL |
| 40263 | 1999 FQ$_5$ | — | March 18, 1999 | Kitt Peak | Spacewatch | AMO +1km | 950 m | MPC · JPL |
| 40264 | 1999 FJ$_7$ | — | March 20, 1999 | Socorro | LINEAR | H | 1.1 km | MPC · JPL |
| 40265 | 1999 FQ$_{22}$ | — | March 19, 1999 | Socorro | LINEAR | · | 2.9 km | MPC · JPL |
| 40266 | 1999 GS | — | April 5, 1999 | Višnjan Observatory | K. Korlević | NYS | 4.2 km | MPC · JPL |
| 40267 | 1999 GJ$_4$ | — | April 10, 1999 | Socorro | LINEAR | APO +1km | 1.6 km | MPC · JPL |
| 40268 | 1999 GU$_8$ | — | April 10, 1999 | Anderson Mesa | LONEOS | FLO | 1.8 km | MPC · JPL |
| 40269 | 1999 GP$_{25}$ | — | April 6, 1999 | Socorro | LINEAR | FLO | 1.7 km | MPC · JPL |
| 40270 | 1999 JE | — | May 6, 1999 | Socorro | LINEAR | H | 1.7 km | MPC · JPL |
| 40271 | 1999 JT | — | May 4, 1999 | Xinglong | SCAP | PHO | 3.2 km | MPC · JPL |
| 40272 | 1999 JA$_7$ | — | May 8, 1999 | Catalina | CSS | CHL | 3.3 km | MPC · JPL |
| 40273 | 1999 JS$_7$ | — | May 13, 1999 | Reedy Creek | J. Broughton | · | 5.4 km | MPC · JPL |
| 40274 | 1999 JT$_{14}$ | — | May 10, 1999 | Socorro | LINEAR | · | 2.4 km | MPC · JPL |
| 40275 | 1999 JW$_{15}$ | — | May 10, 1999 | Socorro | LINEAR | V | 1.6 km | MPC · JPL |
| 40276 | 1999 JR$_{19}$ | — | May 10, 1999 | Socorro | LINEAR | · | 2.2 km | MPC · JPL |
| 40277 | 1999 JL$_{30}$ | — | May 10, 1999 | Socorro | LINEAR | · | 4.7 km | MPC · JPL |
| 40278 | 1999 JC$_{34}$ | — | May 10, 1999 | Socorro | LINEAR | FLO | 2.0 km | MPC · JPL |
| 40279 | 1999 JD$_{35}$ | — | May 10, 1999 | Socorro | LINEAR | V | 2.1 km | MPC · JPL |
| 40280 | 1999 JV$_{44}$ | — | May 10, 1999 | Socorro | LINEAR | · | 1.7 km | MPC · JPL |
| 40281 | 1999 JY$_{47}$ | — | May 10, 1999 | Socorro | LINEAR | · | 8.8 km | MPC · JPL |
| 40282 | 1999 JD$_{48}$ | — | May 10, 1999 | Socorro | LINEAR | EUN | 6.6 km | MPC · JPL |
| 40283 | 1999 JO$_{50}$ | — | May 10, 1999 | Socorro | LINEAR | · | 4.8 km | MPC · JPL |
| 40284 | 1999 JE$_{52}$ | — | May 10, 1999 | Socorro | LINEAR | · | 1.9 km | MPC · JPL |
| 40285 | 1999 JT$_{52}$ | — | May 10, 1999 | Socorro | LINEAR | · | 1.6 km | MPC · JPL |
| 40286 | 1999 JN$_{53}$ | — | May 10, 1999 | Socorro | LINEAR | · | 1.9 km | MPC · JPL |
| 40287 | 1999 JS$_{61}$ | — | May 10, 1999 | Socorro | LINEAR | · | 2.1 km | MPC · JPL |
| 40288 | 1999 JP$_{64}$ | — | May 10, 1999 | Socorro | LINEAR | NYS | 2.0 km | MPC · JPL |
| 40289 | 1999 JS$_{64}$ | — | May 10, 1999 | Socorro | LINEAR | · | 7.4 km | MPC · JPL |
| 40290 | 1999 JV$_{64}$ | — | May 10, 1999 | Socorro | LINEAR | · | 2.0 km | MPC · JPL |
| 40291 | 1999 JX$_{71}$ | — | May 12, 1999 | Socorro | LINEAR | · | 2.2 km | MPC · JPL |
| 40292 | 1999 JD$_{72}$ | — | May 12, 1999 | Socorro | LINEAR | · | 2.5 km | MPC · JPL |
| 40293 | 1999 JG$_{73}$ | — | May 12, 1999 | Socorro | LINEAR | FLO | 2.2 km | MPC · JPL |
| 40294 | 1999 JT$_{73}$ | — | May 12, 1999 | Socorro | LINEAR | · | 2.1 km | MPC · JPL |
| 40295 | 1999 JX$_{73}$ | — | May 12, 1999 | Socorro | LINEAR | · | 2.0 km | MPC · JPL |
| 40296 | 1999 JE$_{74}$ | — | May 12, 1999 | Socorro | LINEAR | FLO | 2.5 km | MPC · JPL |
| 40297 | 1999 JJ$_{74}$ | — | May 12, 1999 | Socorro | LINEAR | · | 3.9 km | MPC · JPL |
| 40298 | 1999 JD$_{81}$ | — | May 13, 1999 | Socorro | LINEAR | · | 2.3 km | MPC · JPL |
| 40299 | 1999 JN$_{90}$ | — | May 12, 1999 | Socorro | LINEAR | · | 3.8 km | MPC · JPL |
| 40300 | 1999 JT$_{93}$ | — | May 12, 1999 | Socorro | LINEAR | V | 1.7 km | MPC · JPL |

## 40301–40400

| Designation | Designation | Designation | Discovery | Discovery | Discovery | Properties | Properties | Ref |
| Permanent | Provisional | Citation | Date | Site | Discoverer(s) | Category | Diam. | Ref |
| 40301 | 1999 JU$_{93}$ | — | May 12, 1999 | Socorro | LINEAR | · | 1.8 km | MPC · JPL |
| 40302 | 1999 JD$_{98}$ | — | May 12, 1999 | Socorro | LINEAR | · | 3.7 km | MPC · JPL |
| 40303 | 1999 JU$_{98}$ | — | May 12, 1999 | Socorro | LINEAR | · | 1.4 km | MPC · JPL |
| 40304 | 1999 JX$_{104}$ | — | May 12, 1999 | Socorro | LINEAR | · | 6.2 km | MPC · JPL |
| 40305 | 1999 JP$_{111}$ | — | May 13, 1999 | Socorro | LINEAR | FLO | 3.5 km | MPC · JPL |
| 40306 | 1999 JN$_{112}$ | — | May 13, 1999 | Socorro | LINEAR | · | 2.3 km | MPC · JPL |
| 40307 | 1999 JN$_{115}$ | — | May 13, 1999 | Socorro | LINEAR | NYS | 1.4 km | MPC · JPL |
| 40308 | 1999 JV$_{120}$ | — | May 13, 1999 | Socorro | LINEAR | V | 2.2 km | MPC · JPL |
| 40309 | 1999 JH$_{131}$ | — | May 13, 1999 | Socorro | LINEAR | · | 1.6 km | MPC · JPL |
| 40310 | 1999 KU$_4$ | — | May 18, 1999 | Socorro | LINEAR | · | 2.7 km | MPC · JPL |
| 40311 | 1999 KH$_{13}$ | — | May 18, 1999 | Socorro | LINEAR | · | 2.8 km | MPC · JPL |
| 40312 | 1999 KZ$_{13}$ | — | May 18, 1999 | Socorro | LINEAR | · | 1.9 km | MPC · JPL |
| 40313 | 1999 KV$_{14}$ | — | May 18, 1999 | Socorro | LINEAR | · | 2.4 km | MPC · JPL |
| 40314 | 1999 KR$_{16}$ | — | May 16, 1999 | La Silla | A. C. Delsanti, O. R. Hainaut | SDO · critical | 321 km | MPC · JPL |
| 40315 | 1999 LS | — | June 4, 1999 | Socorro | LINEAR | · | 1.3 km | MPC · JPL |
| 40316 | 1999 LU$_4$ | — | June 7, 1999 | Socorro | LINEAR | PHO | 8.8 km | MPC · JPL |
| 40317 | 1999 LO$_7$ | — | June 9, 1999 | Catalina | CSS | · | 3.4 km | MPC · JPL |
| 40318 | 1999 LQ$_9$ | — | June 8, 1999 | Socorro | LINEAR | EUN | 3.4 km | MPC · JPL |
| 40319 | 1999 LR$_{11}$ | — | June 9, 1999 | Socorro | LINEAR | · | 2.1 km | MPC · JPL |
| 40320 | 1999 LP$_{14}$ | — | June 9, 1999 | Socorro | LINEAR | · | 3.2 km | MPC · JPL |
| 40321 | 1999 LA$_{21}$ | — | June 9, 1999 | Socorro | LINEAR | · | 2.4 km | MPC · JPL |
| 40322 | 1999 LU$_{23}$ | — | June 9, 1999 | Socorro | LINEAR | · | 2.8 km | MPC · JPL |
| 40323 | 1999 LF$_{25}$ | — | June 9, 1999 | Socorro | LINEAR | · | 4.6 km | MPC · JPL |
| 40324 | 1999 LY$_{30}$ | — | June 12, 1999 | Kitt Peak | Spacewatch | · | 2.9 km | MPC · JPL |
| 40325 | 1999 LW$_{33}$ | — | June 11, 1999 | Catalina | CSS | · | 8.9 km | MPC · JPL |
| 40326 | 1999 MA | — | June 18, 1999 | Prescott | P. G. Comba | · | 4.1 km | MPC · JPL |
| 40327 | 1999 MB | — | June 17, 1999 | Reedy Creek | J. Broughton | V | 2.0 km | MPC · JPL |
| 40328 Dow | 1999 MK | Dow | June 20, 1999 | Junk Bond | D. Healy | · | 2.4 km | MPC · JPL |
| 40329 | 1999 ML | — | June 20, 1999 | Catalina | CSS | AMO +1km | 1.0 km | MPC · JPL |
| 40330 | 1999 MN$_1$ | — | June 20, 1999 | Anderson Mesa | LONEOS | NYS | 2.1 km | MPC · JPL |
| 40331 | 1999 MS$_1$ | — | June 17, 1999 | Farpoint | G. Hug, G. Bell | · | 2.0 km | MPC · JPL |
| 40332 | 1999 NK | — | July 6, 1999 | Reedy Creek | J. Broughton | · | 4.6 km | MPC · JPL |
| 40333 | 1999 NO$_1$ | — | July 12, 1999 | Socorro | LINEAR | · | 12 km | MPC · JPL |
| 40334 | 1999 NS$_4$ | — | July 11, 1999 | Višnjan Observatory | K. Korlević | NYS | 2.4 km | MPC · JPL |
| 40335 | 1999 NJ$_5$ | — | July 15, 1999 | Višnjan Observatory | K. Korlević | V | 3.0 km | MPC · JPL |
| 40336 | 1999 NG$_6$ | — | July 13, 1999 | Socorro | LINEAR | V | 2.2 km | MPC · JPL |
| 40337 | 1999 NN$_7$ | — | July 13, 1999 | Socorro | LINEAR | NYS | 2.1 km | MPC · JPL |
| 40338 | 1999 NB$_8$ | — | July 13, 1999 | Socorro | LINEAR | NYS | 2.8 km | MPC · JPL |
| 40339 | 1999 NF$_8$ | — | July 13, 1999 | Socorro | LINEAR | · | 2.5 km | MPC · JPL |
| 40340 | 1999 NR$_8$ | — | July 13, 1999 | Socorro | LINEAR | · | 4.5 km | MPC · JPL |
| 40341 | 1999 NU$_8$ | — | July 13, 1999 | Socorro | LINEAR | NYS | 2.2 km | MPC · JPL |
| 40342 | 1999 NB$_9$ | — | July 13, 1999 | Socorro | LINEAR | · | 2.1 km | MPC · JPL |
| 40343 | 1999 NH$_9$ | — | July 13, 1999 | Socorro | LINEAR | V | 2.4 km | MPC · JPL |
| 40344 | 1999 NN$_9$ | — | July 13, 1999 | Socorro | LINEAR | V | 2.1 km | MPC · JPL |
| 40345 | 1999 NT$_9$ | — | July 13, 1999 | Socorro | LINEAR | FLO | 1.5 km | MPC · JPL |
| 40346 | 1999 ND$_{10}$ | — | July 13, 1999 | Socorro | LINEAR | V | 1.6 km | MPC · JPL |
| 40347 | 1999 NH$_{10}$ | — | July 13, 1999 | Socorro | LINEAR | FLO | 2.0 km | MPC · JPL |
| 40348 | 1999 NO$_{10}$ | — | July 13, 1999 | Socorro | LINEAR | · | 4.2 km | MPC · JPL |
| 40349 | 1999 NF$_{11}$ | — | July 13, 1999 | Socorro | LINEAR | NYS | 2.5 km | MPC · JPL |
| 40350 | 1999 NO$_{11}$ | — | July 13, 1999 | Socorro | LINEAR | V | 1.7 km | MPC · JPL |
| 40351 | 1999 NZ$_{11}$ | — | July 13, 1999 | Socorro | LINEAR | · | 3.3 km | MPC · JPL |
| 40352 | 1999 ND$_{12}$ | — | July 13, 1999 | Socorro | LINEAR | · | 2.7 km | MPC · JPL |
| 40353 | 1999 NB$_{13}$ | — | July 14, 1999 | Socorro | LINEAR | · | 6.2 km | MPC · JPL |
| 40354 | 1999 NQ$_{15}$ | — | July 14, 1999 | Socorro | LINEAR | · | 2.0 km | MPC · JPL |
| 40355 | 1999 NH$_{17}$ | — | July 14, 1999 | Socorro | LINEAR | · | 1.8 km | MPC · JPL |
| 40356 | 1999 NZ$_{17}$ | — | July 14, 1999 | Socorro | LINEAR | · | 4.3 km | MPC · JPL |
| 40357 | 1999 NM$_{18}$ | — | July 14, 1999 | Socorro | LINEAR | · | 2.4 km | MPC · JPL |
| 40358 | 1999 ND$_{19}$ | — | July 14, 1999 | Socorro | LINEAR | MAS | 2.5 km | MPC · JPL |
| 40359 | 1999 NT$_{20}$ | — | July 14, 1999 | Socorro | LINEAR | · | 2.5 km | MPC · JPL |
| 40360 | 1999 NE$_{21}$ | — | July 14, 1999 | Socorro | LINEAR | FLO | 2.4 km | MPC · JPL |
| 40361 | 1999 NG$_{21}$ | — | July 14, 1999 | Socorro | LINEAR | · | 3.1 km | MPC · JPL |
| 40362 | 1999 NY$_{21}$ | — | July 14, 1999 | Socorro | LINEAR | NYS | 2.2 km | MPC · JPL |
| 40363 | 1999 NM$_{23}$ | — | July 14, 1999 | Socorro | LINEAR | RAF | 2.4 km | MPC · JPL |
| 40364 | 1999 ND$_{24}$ | — | July 14, 1999 | Socorro | LINEAR | V | 1.9 km | MPC · JPL |
| 40365 | 1999 NE$_{26}$ | — | July 14, 1999 | Socorro | LINEAR | · | 3.3 km | MPC · JPL |
| 40366 | 1999 NF$_{27}$ | — | July 14, 1999 | Socorro | LINEAR | · | 2.0 km | MPC · JPL |
| 40367 | 1999 NA$_{28}$ | — | July 14, 1999 | Socorro | LINEAR | · | 2.6 km | MPC · JPL |
| 40368 | 1999 NS$_{28}$ | — | July 14, 1999 | Socorro | LINEAR | V | 2.5 km | MPC · JPL |
| 40369 | 1999 NY$_{28}$ | — | July 14, 1999 | Socorro | LINEAR | MAS | 2.5 km | MPC · JPL |
| 40370 | 1999 NZ$_{28}$ | — | July 14, 1999 | Socorro | LINEAR | V | 1.8 km | MPC · JPL |
| 40371 | 1999 NF$_{30}$ | — | July 14, 1999 | Socorro | LINEAR | FLO | 2.1 km | MPC · JPL |
| 40372 | 1999 NG$_{34}$ | — | July 14, 1999 | Socorro | LINEAR | · | 3.0 km | MPC · JPL |
| 40373 | 1999 NF$_{36}$ | — | July 14, 1999 | Socorro | LINEAR | V | 2.2 km | MPC · JPL |
| 40374 | 1999 NG$_{36}$ | — | July 14, 1999 | Socorro | LINEAR | · | 2.3 km | MPC · JPL |
| 40375 | 1999 NO$_{36}$ | — | July 14, 1999 | Socorro | LINEAR | · | 3.4 km | MPC · JPL |
| 40376 | 1999 NF$_{37}$ | — | July 14, 1999 | Socorro | LINEAR | NYS | 1.7 km | MPC · JPL |
| 40377 | 1999 NM$_{39}$ | — | July 14, 1999 | Socorro | LINEAR | NYS | 2.4 km | MPC · JPL |
| 40378 | 1999 NW$_{40}$ | — | July 14, 1999 | Socorro | LINEAR | · | 2.8 km | MPC · JPL |
| 40379 | 1999 NG$_{41}$ | — | July 14, 1999 | Socorro | LINEAR | NYS | 2.7 km | MPC · JPL |
| 40380 | 1999 NX$_{42}$ | — | July 14, 1999 | Socorro | LINEAR | · | 3.1 km | MPC · JPL |
| 40381 | 1999 NK$_{44}$ | — | July 13, 1999 | Socorro | LINEAR | · | 2.9 km | MPC · JPL |
| 40382 | 1999 NK$_{47}$ | — | July 13, 1999 | Socorro | LINEAR | FLO | 1.9 km | MPC · JPL |
| 40383 | 1999 NW$_{47}$ | — | July 13, 1999 | Socorro | LINEAR | · | 2.2 km | MPC · JPL |
| 40384 | 1999 NC$_{49}$ | — | July 13, 1999 | Socorro | LINEAR | · | 4.8 km | MPC · JPL |
| 40385 | 1999 NE$_{49}$ | — | July 13, 1999 | Socorro | LINEAR | · | 2.6 km | MPC · JPL |
| 40386 | 1999 NK$_{49}$ | — | July 13, 1999 | Socorro | LINEAR | V | 2.1 km | MPC · JPL |
| 40387 | 1999 NL$_{49}$ | — | July 13, 1999 | Socorro | LINEAR | · | 12 km | MPC · JPL |
| 40388 | 1999 NY$_{49}$ | — | July 13, 1999 | Socorro | LINEAR | · | 2.7 km | MPC · JPL |
| 40389 | 1999 ND$_{50}$ | — | July 13, 1999 | Socorro | LINEAR | · | 5.3 km | MPC · JPL |
| 40390 | 1999 NR$_{51}$ | — | July 12, 1999 | Socorro | LINEAR | · | 3.6 km | MPC · JPL |
| 40391 | 1999 NR$_{52}$ | — | July 12, 1999 | Socorro | LINEAR | · | 4.5 km | MPC · JPL |
| 40392 | 1999 NS$_{53}$ | — | July 12, 1999 | Socorro | LINEAR | · | 4.9 km | MPC · JPL |
| 40393 | 1999 NW$_{53}$ | — | July 12, 1999 | Socorro | LINEAR | · | 2.9 km | MPC · JPL |
| 40394 | 1999 NX$_{53}$ | — | July 12, 1999 | Socorro | LINEAR | · | 3.2 km | MPC · JPL |
| 40395 | 1999 NP$_{54}$ | — | July 12, 1999 | Socorro | LINEAR | KLI | 4.2 km | MPC · JPL |
| 40396 | 1999 NT$_{54}$ | — | July 12, 1999 | Socorro | LINEAR | · | 3.4 km | MPC · JPL |
| 40397 | 1999 NY$_{55}$ | — | July 12, 1999 | Socorro | LINEAR | · | 4.6 km | MPC · JPL |
| 40398 | 1999 NL$_{57}$ | — | July 13, 1999 | Socorro | LINEAR | · | 7.2 km | MPC · JPL |
| 40399 | 1999 NW$_{63}$ | — | July 14, 1999 | Socorro | LINEAR | FLO | 2.9 km | MPC · JPL |
| 40400 | 1999 NJ$_{64}$ | — | July 14, 1999 | Socorro | LINEAR | · | 5.1 km | MPC · JPL |

## 40401–40500

| Designation | Designation | Designation | Discovery | Discovery | Discovery | Properties | Properties | Ref |
| Permanent | Provisional | Citation | Date | Site | Discoverer(s) | Category | Diam. | Ref |
| 40401 | 1999 NS$_{64}$ | — | July 14, 1999 | Socorro | LINEAR | V | 2.1 km | MPC · JPL |
| 40402 | 1999 NY$_{64}$ | — | July 14, 1999 | Socorro | LINEAR | · | 2.4 km | MPC · JPL |
| 40403 | 1999 NJ$_{65}$ | — | July 12, 1999 | Socorro | LINEAR | · | 3.4 km | MPC · JPL |
| 40404 | 1999 OB | — | July 16, 1999 | Višnjan Observatory | K. Korlević | · | 3.6 km | MPC · JPL |
| 40405 | 1999 OU | — | July 17, 1999 | Bergisch Gladbach | W. Bickel | MRX | 2.6 km | MPC · JPL |
| 40406 | 1999 OR$_1$ | — | July 16, 1999 | Socorro | LINEAR | V | 2.5 km | MPC · JPL |
| 40407 | 1999 QT$_2$ | — | August 31, 1999 | Oohira | T. Urata | SUL | 3.9 km | MPC · JPL |
| 40408 | 1999 RO$_2$ | — | September 4, 1999 | Catalina | CSS | V | 2.0 km | MPC · JPL |
| 40409 Taichikato | 1999 RS$_2$ | Taichikato | September 6, 1999 | Ceccano | G. Masi | NYS | 1.8 km | MPC · JPL |
| 40410 Příhoda | 1999 RJ$_3$ | Příhoda | September 4, 1999 | Ondřejov | L. Kotková | · | 6.2 km | MPC · JPL |
| 40411 | 1999 RM$_3$ | — | September 6, 1999 | Gekko | T. Kagawa | FLO | 2.9 km | MPC · JPL |
| 40412 | 1999 RE$_9$ | — | September 4, 1999 | Kitt Peak | Spacewatch | · | 6.2 km | MPC · JPL |
| 40413 | 1999 RS$_{10}$ | — | September 7, 1999 | Socorro | LINEAR | LCI | 5.2 km | MPC · JPL |
| 40414 | 1999 RP$_{11}$ | — | September 7, 1999 | Socorro | LINEAR | MAS | 2.4 km | MPC · JPL |
| 40415 | 1999 RB$_{13}$ | — | September 7, 1999 | Socorro | LINEAR | · | 2.8 km | MPC · JPL |
| 40416 | 1999 RO$_{14}$ | — | September 7, 1999 | Socorro | LINEAR | · | 3.6 km | MPC · JPL |
| 40417 | 1999 RD$_{16}$ | — | September 7, 1999 | Socorro | LINEAR | · | 10 km | MPC · JPL |
| 40418 | 1999 RK$_{19}$ | — | September 7, 1999 | Socorro | LINEAR | · | 5.0 km | MPC · JPL |
| 40419 | 1999 RV$_{20}$ | — | September 7, 1999 | Socorro | LINEAR | AGN | 3.0 km | MPC · JPL |
| 40420 | 1999 RJ$_{21}$ | — | September 7, 1999 | Socorro | LINEAR | · | 3.9 km | MPC · JPL |
| 40421 | 1999 RZ$_{22}$ | — | September 7, 1999 | Socorro | LINEAR | · | 5.5 km | MPC · JPL |
| 40422 | 1999 RF$_{23}$ | — | September 7, 1999 | Socorro | LINEAR | NYS | 2.2 km | MPC · JPL |
| 40423 | 1999 RJ$_{23}$ | — | September 7, 1999 | Socorro | LINEAR | · | 5.5 km | MPC · JPL |
| 40424 | 1999 RB$_{24}$ | — | September 7, 1999 | Socorro | LINEAR | · | 3.0 km | MPC · JPL |
| 40425 | 1999 RQ$_{25}$ | — | September 7, 1999 | Socorro | LINEAR | · | 3.5 km | MPC · JPL |
| 40426 | 1999 RV$_{25}$ | — | September 7, 1999 | Socorro | LINEAR | HYG | 7.5 km | MPC · JPL |
| 40427 | 1999 RN$_{26}$ | — | September 7, 1999 | Socorro | LINEAR | 629 | 3.4 km | MPC · JPL |
| 40428 | 1999 RZ$_{26}$ | — | September 7, 1999 | Socorro | LINEAR | · | 5.9 km | MPC · JPL |
| 40429 | 1999 RL$_{27}$ | — | September 7, 1999 | Višnjan Observatory | K. Korlević | EUN | 9.3 km | MPC · JPL |
| 40430 | 1999 RL$_{28}$ | — | September 7, 1999 | Socorro | LINEAR | · | 1.7 km | MPC · JPL |
| 40431 | 1999 RK$_{29}$ | — | September 8, 1999 | Socorro | LINEAR | PHO | 3.4 km | MPC · JPL |
| 40432 | 1999 RW$_{29}$ | — | September 8, 1999 | Socorro | LINEAR | · | 7.4 km | MPC · JPL |
| 40433 | 1999 RQ$_{30}$ | — | September 8, 1999 | Socorro | LINEAR | PAL | 4.6 km | MPC · JPL |
| 40434 | 1999 RH$_{32}$ | — | September 9, 1999 | Višnjan Observatory | K. Korlević | GEF | 3.5 km | MPC · JPL |
| 40435 | 1999 RL$_{32}$ | — | September 9, 1999 | Višnjan Observatory | K. Korlević | · | 5.9 km | MPC · JPL |
| 40436 Sylviecoyaud | 1999 RQ$_{32}$ | Sylviecoyaud | September 10, 1999 | Campo Catino | Campo Catino Obs. | · | 5.8 km | MPC · JPL |
| 40437 | 1999 RU$_{33}$ | — | September 6, 1999 | Farpoint | G. Bell, G. Hug | · | 5.7 km | MPC · JPL |
| 40438 | 1999 RV$_{33}$ | — | September 6, 1999 | Farpoint | G. Bell, G. Hug | KOR | 3.9 km | MPC · JPL |
| 40439 | 1999 RF$_{34}$ | — | September 9, 1999 | Višnjan Observatory | K. Korlević | THM | 8.7 km | MPC · JPL |
| 40440 Dobrovský | 1999 RU$_{34}$ | Dobrovský | September 11, 1999 | Ondřejov | P. Pravec, P. Kušnirák | EOS | 4.8 km | MPC · JPL |
| 40441 Jungmann | 1999 RW$_{34}$ | Jungmann | September 11, 1999 | Ondřejov | P. Pravec, P. Kušnirák | · | 3.1 km | MPC · JPL |
| 40442 | 1999 RO$_{35}$ | — | September 11, 1999 | Višnjan Observatory | K. Korlević | · | 5.9 km | MPC · JPL |
| 40443 | 1999 RU$_{35}$ | — | September 7, 1999 | Uccle | E. W. Elst | · | 2.3 km | MPC · JPL |
| 40444 Palacký | 1999 RV$_{35}$ | Palacký | September 12, 1999 | Ondřejov | P. Pravec, M. Wolf | KOR | 2.9 km | MPC · JPL |
| 40445 | 1999 RY$_{35}$ | — | September 12, 1999 | Prescott | P. G. Comba | V | 1.5 km | MPC · JPL |
| 40446 | 1999 RN$_{36}$ | — | September 12, 1999 | Črni Vrh | Črni Vrh | EUN | 5.8 km | MPC · JPL |
| 40447 Lorenzoni | 1999 RC$_{37}$ | Lorenzoni | September 11, 1999 | Bologna | San Vittore Obs. | · | 2.4 km | MPC · JPL |
| 40448 | 1999 RT$_{37}$ | — | September 12, 1999 | Višnjan Observatory | K. Korlević | V | 2.3 km | MPC · JPL |
| 40449 | 1999 RV$_{37}$ | — | September 12, 1999 | Višnjan Observatory | K. Korlević | · | 2.2 km | MPC · JPL |
| 40450 | 1999 RX$_{37}$ | — | September 12, 1999 | Višnjan Observatory | K. Korlević | EOS | 5.2 km | MPC · JPL |
| 40451 | 1999 RD$_{38}$ | — | September 13, 1999 | Višnjan Observatory | K. Korlević | MAR | 3.2 km | MPC · JPL |
| 40452 | 1999 RV$_{38}$ | — | September 12, 1999 | Reedy Creek | J. Broughton | V | 1.6 km | MPC · JPL |
| 40453 | 1999 RX$_{38}$ | — | September 13, 1999 | Reedy Creek | J. Broughton | V | 2.5 km | MPC · JPL |
| 40454 | 1999 RY$_{39}$ | — | September 12, 1999 | Catalina | CSS | GEF | 3.2 km | MPC · JPL |
| 40455 | 1999 RC$_{40}$ | — | September 12, 1999 | Catalina | CSS | URS | 6.6 km | MPC · JPL |
| 40456 | 1999 RV$_{41}$ | — | September 13, 1999 | Višnjan Observatory | K. Korlević | THM | 7.4 km | MPC · JPL |
| 40457 Williamkuhn | 1999 RG$_{43}$ | Williamkuhn | September 4, 1999 | OCA-Anza | M. Collins, M. White | · | 2.1 km | MPC · JPL |
| 40458 | 1999 RH$_{43}$ | — | September 14, 1999 | Višnjan Observatory | K. Korlević | V | 1.8 km | MPC · JPL |
| 40459 Rektorys | 1999 RK$_{43}$ | Rektorys | September 14, 1999 | Ondřejov | P. Pravec, P. Kušnirák | GEF | 3.6 km | MPC · JPL |
| 40460 | 1999 RV$_{43}$ | — | September 15, 1999 | Višnjan Observatory | K. Korlević | · | 3.1 km | MPC · JPL |
| 40461 | 1999 RW$_{43}$ | — | September 15, 1999 | Višnjan Observatory | K. Korlević | EOS | 6.2 km | MPC · JPL |
| 40462 | 1999 RC$_{44}$ | — | September 15, 1999 | Višnjan Observatory | Višnjan Obs. | · | 5.1 km | MPC · JPL |
| 40463 Frankkameny | 1999 RE$_{44}$ | Frankkameny | September 15, 1999 | Calgary | G. W. Billings | · | 3.9 km | MPC · JPL |
| 40464 | 1999 RM$_{44}$ | — | September 8, 1999 | Socorro | LINEAR | GER | 4.8 km | MPC · JPL |
| 40465 | 1999 RQ$_{44}$ | — | September 14, 1999 | Višnjan Observatory | K. Korlević | · | 3.4 km | MPC · JPL |
| 40466 | 1999 RU$_{44}$ | — | September 14, 1999 | Črni Vrh | Črni Vrh | EUN | 3.0 km | MPC · JPL |
| 40467 | 1999 RE$_{46}$ | — | September 7, 1999 | Socorro | LINEAR | V | 2.3 km | MPC · JPL |
| 40468 | 1999 RF$_{46}$ | — | September 7, 1999 | Socorro | LINEAR | PHO | 2.9 km | MPC · JPL |
| 40469 | 1999 RM$_{47}$ | — | September 7, 1999 | Socorro | LINEAR | · | 2.9 km | MPC · JPL |
| 40470 | 1999 RN$_{47}$ | — | September 7, 1999 | Socorro | LINEAR | · | 3.3 km | MPC · JPL |
| 40471 | 1999 RX$_{47}$ | — | September 7, 1999 | Socorro | LINEAR | · | 7.6 km | MPC · JPL |
| 40472 | 1999 RU$_{49}$ | — | September 7, 1999 | Socorro | LINEAR | NYS | 2.1 km | MPC · JPL |
| 40473 | 1999 RR$_{50}$ | — | September 7, 1999 | Socorro | LINEAR | NYS · | 4.6 km | MPC · JPL |
| 40474 | 1999 RG$_{51}$ | — | September 7, 1999 | Socorro | LINEAR | · | 2.5 km | MPC · JPL |
| 40475 | 1999 RE$_{53}$ | — | September 7, 1999 | Socorro | LINEAR | · | 2.3 km | MPC · JPL |
| 40476 | 1999 RH$_{53}$ | — | September 7, 1999 | Socorro | LINEAR | V | 2.5 km | MPC · JPL |
| 40477 | 1999 RS$_{54}$ | — | September 7, 1999 | Socorro | LINEAR | · | 4.0 km | MPC · JPL |
| 40478 | 1999 RT$_{54}$ | — | September 7, 1999 | Socorro | LINEAR | MAS | 1.7 km | MPC · JPL |
| 40479 | 1999 RQ$_{60}$ | — | September 7, 1999 | Socorro | LINEAR | · | 3.1 km | MPC · JPL |
| 40480 | 1999 RK$_{61}$ | — | September 7, 1999 | Socorro | LINEAR | RAF | 3.4 km | MPC · JPL |
| 40481 | 1999 RQ$_{61}$ | — | September 7, 1999 | Socorro | LINEAR | NYS · | 4.9 km | MPC · JPL |
| 40482 | 1999 RA$_{62}$ | — | September 7, 1999 | Socorro | LINEAR | · | 3.4 km | MPC · JPL |
| 40483 | 1999 RE$_{62}$ | — | September 7, 1999 | Socorro | LINEAR | GEF | 3.4 km | MPC · JPL |
| 40484 | 1999 RA$_{63}$ | — | September 7, 1999 | Socorro | LINEAR | · | 3.4 km | MPC · JPL |
| 40485 | 1999 RY$_{63}$ | — | September 7, 1999 | Socorro | LINEAR | NYS | 3.4 km | MPC · JPL |
| 40486 | 1999 RJ$_{64}$ | — | September 7, 1999 | Socorro | LINEAR | V | 1.7 km | MPC · JPL |
| 40487 | 1999 RP$_{66}$ | — | September 7, 1999 | Socorro | LINEAR | · | 6.1 km | MPC · JPL |
| 40488 | 1999 RV$_{66}$ | — | September 7, 1999 | Socorro | LINEAR | · | 5.9 km | MPC · JPL |
| 40489 | 1999 RH$_{67}$ | — | September 7, 1999 | Socorro | LINEAR | NYS | 1.9 km | MPC · JPL |
| 40490 | 1999 RY$_{67}$ | — | September 7, 1999 | Socorro | LINEAR | GEF | 3.5 km | MPC · JPL |
| 40491 | 1999 RJ$_{68}$ | — | September 7, 1999 | Socorro | LINEAR | KOR | 3.2 km | MPC · JPL |
| 40492 | 1999 RO$_{69}$ | — | September 7, 1999 | Socorro | LINEAR | · | 1.8 km | MPC · JPL |
| 40493 | 1999 RD$_{71}$ | — | September 7, 1999 | Socorro | LINEAR | · | 2.4 km | MPC · JPL |
| 40494 | 1999 RG$_{72}$ | — | September 7, 1999 | Socorro | LINEAR | · | 2.7 km | MPC · JPL |
| 40495 | 1999 RQ$_{74}$ | — | September 7, 1999 | Socorro | LINEAR | NAE | 5.3 km | MPC · JPL |
| 40496 | 1999 RD$_{76}$ | — | September 7, 1999 | Socorro | LINEAR | · | 5.3 km | MPC · JPL |
| 40497 | 1999 RR$_{78}$ | — | September 7, 1999 | Socorro | LINEAR | EOS | 4.2 km | MPC · JPL |
| 40498 | 1999 RG$_{80}$ | — | September 7, 1999 | Socorro | LINEAR | · | 5.8 km | MPC · JPL |
| 40499 | 1999 RK$_{81}$ | — | September 7, 1999 | Socorro | LINEAR | · | 2.6 km | MPC · JPL |
| 40500 | 1999 RE$_{82}$ | — | September 7, 1999 | Socorro | LINEAR | · | 7.7 km | MPC · JPL |

## 40501–40600

| Designation | Designation | Designation | Discovery | Discovery | Discovery | Properties | Properties | Ref |
| Permanent | Provisional | Citation | Date | Site | Discoverer(s) | Category | Diam. | Ref |
| 40501 | 1999 RM$_{82}$ | — | September 7, 1999 | Socorro | LINEAR | slow | 6.2 km | MPC · JPL |
| 40502 | 1999 RT$_{82}$ | — | September 7, 1999 | Socorro | LINEAR | · | 3.0 km | MPC · JPL |
| 40503 | 1999 RA$_{83}$ | — | September 7, 1999 | Socorro | LINEAR | NYS | 2.7 km | MPC · JPL |
| 40504 | 1999 RC$_{84}$ | — | September 7, 1999 | Socorro | LINEAR | · | 2.7 km | MPC · JPL |
| 40505 | 1999 RJ$_{84}$ | — | September 7, 1999 | Socorro | LINEAR | · | 3.6 km | MPC · JPL |
| 40506 | 1999 RB$_{86}$ | — | September 7, 1999 | Socorro | LINEAR | · | 2.5 km | MPC · JPL |
| 40507 | 1999 RK$_{86}$ | — | September 7, 1999 | Socorro | LINEAR | · | 5.9 km | MPC · JPL |
| 40508 | 1999 RU$_{86}$ | — | September 7, 1999 | Socorro | LINEAR | · | 2.3 km | MPC · JPL |
| 40509 | 1999 RJ$_{87}$ | — | September 7, 1999 | Socorro | LINEAR | · | 4.9 km | MPC · JPL |
| 40510 | 1999 RU$_{87}$ | — | September 7, 1999 | Socorro | LINEAR | K-2 | 4.1 km | MPC · JPL |
| 40511 | 1999 RE$_{88}$ | — | September 7, 1999 | Socorro | LINEAR | NYS · fast | 1.9 km | MPC · JPL |
| 40512 | 1999 RP$_{88}$ | — | September 7, 1999 | Socorro | LINEAR | HEN | 2.8 km | MPC · JPL |
| 40513 | 1999 RS$_{88}$ | — | September 7, 1999 | Socorro | LINEAR | · | 4.8 km | MPC · JPL |
| 40514 | 1999 RC$_{89}$ | — | September 7, 1999 | Socorro | LINEAR | · | 3.0 km | MPC · JPL |
| 40515 | 1999 RE$_{89}$ | — | September 7, 1999 | Socorro | LINEAR | · | 5.6 km | MPC · JPL |
| 40516 | 1999 RY$_{89}$ | — | September 7, 1999 | Socorro | LINEAR | KOR | 5.3 km | MPC · JPL |
| 40517 | 1999 RA$_{92}$ | — | September 7, 1999 | Socorro | LINEAR | · | 3.1 km | MPC · JPL |
| 40518 | 1999 RZ$_{93}$ | — | September 7, 1999 | Socorro | LINEAR | · | 2.5 km | MPC · JPL |
| 40519 | 1999 RQ$_{94}$ | — | September 7, 1999 | Socorro | LINEAR | WIT | 2.5 km | MPC · JPL |
| 40520 | 1999 RG$_{95}$ | — | September 7, 1999 | Socorro | LINEAR | GEF | 4.2 km | MPC · JPL |
| 40521 | 1999 RL$_{95}$ | — | September 7, 1999 | Socorro | LINEAR | · | 2.6 km | MPC · JPL |
| 40522 | 1999 RT$_{95}$ | — | September 7, 1999 | Socorro | LINEAR | · | 5.4 km | MPC · JPL |
| 40523 | 1999 RX$_{95}$ | — | September 7, 1999 | Socorro | LINEAR | · | 2.9 km | MPC · JPL |
| 40524 | 1999 RA$_{96}$ | — | September 7, 1999 | Socorro | LINEAR | · | 3.2 km | MPC · JPL |
| 40525 | 1999 RO$_{96}$ | — | September 7, 1999 | Socorro | LINEAR | MAS | 1.6 km | MPC · JPL |
| 40526 | 1999 RV$_{96}$ | — | September 7, 1999 | Socorro | LINEAR | HEN | 3.3 km | MPC · JPL |
| 40527 | 1999 RS$_{98}$ | — | September 7, 1999 | Socorro | LINEAR | · | 2.5 km | MPC · JPL |
| 40528 | 1999 RT$_{98}$ | — | September 7, 1999 | Socorro | LINEAR | MEL | 11 km | MPC · JPL |
| 40529 | 1999 RC$_{99}$ | — | September 7, 1999 | Socorro | LINEAR | · | 2.8 km | MPC · JPL |
| 40530 | 1999 RE$_{99}$ | — | September 8, 1999 | Socorro | LINEAR | V | 1.7 km | MPC · JPL |
| 40531 | 1999 RB$_{100}$ | — | September 8, 1999 | Socorro | LINEAR | GEF | 3.2 km | MPC · JPL |
| 40532 | 1999 RY$_{100}$ | — | September 8, 1999 | Socorro | LINEAR | GEF · | 5.8 km | MPC · JPL |
| 40533 | 1999 RH$_{102}$ | — | September 8, 1999 | Socorro | LINEAR | LCI | 2.7 km | MPC · JPL |
| 40534 | 1999 RT$_{102}$ | — | September 8, 1999 | Socorro | LINEAR | · | 4.0 km | MPC · JPL |
| 40535 | 1999 RG$_{103}$ | — | September 8, 1999 | Socorro | LINEAR | EUN | 3.4 km | MPC · JPL |
| 40536 | 1999 RL$_{103}$ | — | September 8, 1999 | Socorro | LINEAR | V | 2.0 km | MPC · JPL |
| 40537 | 1999 RT$_{103}$ | — | September 8, 1999 | Socorro | LINEAR | · | 3.2 km | MPC · JPL |
| 40538 | 1999 RV$_{103}$ | — | September 8, 1999 | Socorro | LINEAR | V | 3.3 km | MPC · JPL |
| 40539 | 1999 RL$_{104}$ | — | September 8, 1999 | Socorro | LINEAR | ADE | 6.2 km | MPC · JPL |
| 40540 | 1999 RZ$_{104}$ | — | September 8, 1999 | Socorro | LINEAR | · | 3.0 km | MPC · JPL |
| 40541 | 1999 RE$_{106}$ | — | September 8, 1999 | Socorro | LINEAR | GEF | 3.5 km | MPC · JPL |
| 40542 | 1999 RS$_{106}$ | — | September 8, 1999 | Socorro | LINEAR | · | 3.5 km | MPC · JPL |
| 40543 | 1999 RZ$_{107}$ | — | September 8, 1999 | Socorro | LINEAR | WIT | 2.7 km | MPC · JPL |
| 40544 | 1999 RA$_{108}$ | — | September 8, 1999 | Socorro | LINEAR | · | 3.8 km | MPC · JPL |
| 40545 | 1999 RO$_{109}$ | — | September 8, 1999 | Socorro | LINEAR | EUN | 3.5 km | MPC · JPL |
| 40546 | 1999 RY$_{109}$ | — | September 8, 1999 | Socorro | LINEAR | EOS | 8.6 km | MPC · JPL |
| 40547 | 1999 RH$_{111}$ | — | September 9, 1999 | Socorro | LINEAR | EUN | 3.4 km | MPC · JPL |
| 40548 | 1999 RK$_{112}$ | — | September 9, 1999 | Socorro | LINEAR | · | 2.9 km | MPC · JPL |
| 40549 | 1999 RP$_{112}$ | — | September 9, 1999 | Socorro | LINEAR | V | 2.2 km | MPC · JPL |
| 40550 | 1999 RM$_{113}$ | — | September 9, 1999 | Socorro | LINEAR | FLO | 2.3 km | MPC · JPL |
| 40551 | 1999 RS$_{113}$ | — | September 9, 1999 | Socorro | LINEAR | · | 6.5 km | MPC · JPL |
| 40552 | 1999 RX$_{114}$ | — | September 9, 1999 | Socorro | LINEAR | · | 7.9 km | MPC · JPL |
| 40553 | 1999 RE$_{115}$ | — | September 9, 1999 | Socorro | LINEAR | NYS · | 5.4 km | MPC · JPL |
| 40554 | 1999 RG$_{115}$ | — | September 9, 1999 | Socorro | LINEAR | · | 3.6 km | MPC · JPL |
| 40555 | 1999 RM$_{115}$ | — | September 9, 1999 | Socorro | LINEAR | · | 3.7 km | MPC · JPL |
| 40556 | 1999 RS$_{115}$ | — | September 9, 1999 | Socorro | LINEAR | · | 3.2 km | MPC · JPL |
| 40557 | 1999 RX$_{116}$ | — | September 9, 1999 | Socorro | LINEAR | EUN | 3.2 km | MPC · JPL |
| 40558 | 1999 RE$_{118}$ | — | September 9, 1999 | Socorro | LINEAR | FLO | 2.1 km | MPC · JPL |
| 40559 | 1999 RO$_{118}$ | — | September 9, 1999 | Socorro | LINEAR | V | 2.6 km | MPC · JPL |
| 40560 | 1999 RQ$_{118}$ | — | September 9, 1999 | Socorro | LINEAR | · | 7.5 km | MPC · JPL |
| 40561 | 1999 RR$_{118}$ | — | September 9, 1999 | Socorro | LINEAR | V | 1.5 km | MPC · JPL |
| 40562 | 1999 RB$_{121}$ | — | September 9, 1999 | Socorro | LINEAR | V | 2.0 km | MPC · JPL |
| 40563 | 1999 RZ$_{122}$ | — | September 9, 1999 | Socorro | LINEAR | WIT | 2.7 km | MPC · JPL |
| 40564 | 1999 RZ$_{123}$ | — | September 9, 1999 | Socorro | LINEAR | · | 5.9 km | MPC · JPL |
| 40565 | 1999 RD$_{124}$ | — | September 9, 1999 | Socorro | LINEAR | NYS | 2.0 km | MPC · JPL |
| 40566 | 1999 RE$_{124}$ | — | September 9, 1999 | Socorro | LINEAR | · | 3.2 km | MPC · JPL |
| 40567 | 1999 RB$_{126}$ | — | September 9, 1999 | Socorro | LINEAR | · | 4.1 km | MPC · JPL |
| 40568 | 1999 RF$_{126}$ | — | September 9, 1999 | Socorro | LINEAR | · | 4.4 km | MPC · JPL |
| 40569 | 1999 RH$_{128}$ | — | September 9, 1999 | Socorro | LINEAR | · | 4.9 km | MPC · JPL |
| 40570 | 1999 RV$_{128}$ | — | September 9, 1999 | Socorro | LINEAR | · | 2.7 km | MPC · JPL |
| 40571 | 1999 RD$_{129}$ | — | September 9, 1999 | Socorro | LINEAR | NYS | 4.5 km | MPC · JPL |
| 40572 | 1999 RP$_{129}$ | — | September 9, 1999 | Socorro | LINEAR | V | 1.9 km | MPC · JPL |
| 40573 | 1999 RE$_{130}$ | — | September 9, 1999 | Socorro | LINEAR | · | 4.9 km | MPC · JPL |
| 40574 | 1999 RO$_{130}$ | — | September 9, 1999 | Socorro | LINEAR | V | 1.7 km | MPC · JPL |
| 40575 | 1999 RS$_{130}$ | — | September 9, 1999 | Socorro | LINEAR | · | 3.3 km | MPC · JPL |
| 40576 | 1999 RM$_{133}$ | — | September 9, 1999 | Socorro | LINEAR | EOS | 5.8 km | MPC · JPL |
| 40577 | 1999 RQ$_{134}$ | — | September 9, 1999 | Socorro | LINEAR | · | 3.0 km | MPC · JPL |
| 40578 | 1999 RT$_{134}$ | — | September 9, 1999 | Socorro | LINEAR | · | 6.9 km | MPC · JPL |
| 40579 | 1999 RJ$_{135}$ | — | September 9, 1999 | Socorro | LINEAR | NYS | 1.5 km | MPC · JPL |
| 40580 | 1999 RN$_{135}$ | — | September 9, 1999 | Socorro | LINEAR | · | 2.6 km | MPC · JPL |
| 40581 | 1999 RK$_{136}$ | — | September 9, 1999 | Socorro | LINEAR | · | 1.6 km | MPC · JPL |
| 40582 | 1999 RC$_{137}$ | — | September 9, 1999 | Socorro | LINEAR | NYS | 1.7 km | MPC · JPL |
| 40583 | 1999 RR$_{137}$ | — | September 9, 1999 | Socorro | LINEAR | · | 2.9 km | MPC · JPL |
| 40584 | 1999 RJ$_{140}$ | — | September 9, 1999 | Socorro | LINEAR | ADE | 6.1 km | MPC · JPL |
| 40585 | 1999 RL$_{140}$ | — | September 9, 1999 | Socorro | LINEAR | · | 3.2 km | MPC · JPL |
| 40586 | 1999 RZ$_{140}$ | — | September 9, 1999 | Socorro | LINEAR | THM | 6.6 km | MPC · JPL |
| 40587 | 1999 RB$_{141}$ | — | September 9, 1999 | Socorro | LINEAR | V | 2.1 km | MPC · JPL |
| 40588 | 1999 RF$_{141}$ | — | September 9, 1999 | Socorro | LINEAR | · | 4.1 km | MPC · JPL |
| 40589 | 1999 RP$_{141}$ | — | September 9, 1999 | Socorro | LINEAR | · | 2.5 km | MPC · JPL |
| 40590 | 1999 RQ$_{141}$ | — | September 9, 1999 | Socorro | LINEAR | · | 2.1 km | MPC · JPL |
| 40591 | 1999 RR$_{142}$ | — | September 9, 1999 | Socorro | LINEAR | · | 3.4 km | MPC · JPL |
| 40592 | 1999 RM$_{143}$ | — | September 9, 1999 | Socorro | LINEAR | · | 4.0 km | MPC · JPL |
| 40593 | 1999 RZ$_{144}$ | — | September 9, 1999 | Socorro | LINEAR | · | 2.9 km | MPC · JPL |
| 40594 | 1999 RW$_{146}$ | — | September 9, 1999 | Socorro | LINEAR | V | 2.0 km | MPC · JPL |
| 40595 | 1999 RY$_{146}$ | — | September 9, 1999 | Socorro | LINEAR | · | 2.5 km | MPC · JPL |
| 40596 | 1999 RA$_{148}$ | — | September 9, 1999 | Socorro | LINEAR | · | 6.6 km | MPC · JPL |
| 40597 | 1999 RG$_{149}$ | — | September 9, 1999 | Socorro | LINEAR | HEN | 3.1 km | MPC · JPL |
| 40598 | 1999 RM$_{149}$ | — | September 9, 1999 | Socorro | LINEAR | · | 1.6 km | MPC · JPL |
| 40599 | 1999 RX$_{150}$ | — | September 9, 1999 | Socorro | LINEAR | · | 2.7 km | MPC · JPL |
| 40600 | 1999 RZ$_{150}$ | — | September 9, 1999 | Socorro | LINEAR | · | 2.3 km | MPC · JPL |

## 40601–40700

| Designation | Designation | Designation | Discovery | Discovery | Discovery | Properties | Properties | Ref |
| Permanent | Provisional | Citation | Date | Site | Discoverer(s) | Category | Diam. | Ref |
| 40601 | 1999 RQ$_{151}$ | — | September 9, 1999 | Socorro | LINEAR | KOR | 3.7 km | MPC · JPL |
| 40602 | 1999 RO$_{152}$ | — | September 9, 1999 | Socorro | LINEAR | · | 2.3 km | MPC · JPL |
| 40603 | 1999 RD$_{154}$ | — | September 9, 1999 | Socorro | LINEAR | GEF | 4.0 km | MPC · JPL |
| 40604 | 1999 RO$_{154}$ | — | September 9, 1999 | Socorro | LINEAR | · | 5.9 km | MPC · JPL |
| 40605 | 1999 RA$_{155}$ | — | September 9, 1999 | Socorro | LINEAR | · | 3.1 km | MPC · JPL |
| 40606 | 1999 RR$_{157}$ | — | September 9, 1999 | Socorro | LINEAR | DOR | 6.2 km | MPC · JPL |
| 40607 | 1999 RH$_{158}$ | — | September 9, 1999 | Socorro | LINEAR | · | 6.1 km | MPC · JPL |
| 40608 | 1999 RS$_{159}$ | — | September 9, 1999 | Socorro | LINEAR | V | 1.7 km | MPC · JPL |
| 40609 | 1999 RD$_{160}$ | — | September 9, 1999 | Socorro | LINEAR | · | 3.0 km | MPC · JPL |
| 40610 | 1999 RF$_{160}$ | — | September 9, 1999 | Socorro | LINEAR | VIB | 6.2 km | MPC · JPL |
| 40611 | 1999 RS$_{160}$ | — | September 9, 1999 | Socorro | LINEAR | NYS | 2.8 km | MPC · JPL |
| 40612 | 1999 RM$_{162}$ | — | September 9, 1999 | Socorro | LINEAR | EOS | 4.6 km | MPC · JPL |
| 40613 | 1999 RR$_{162}$ | — | September 9, 1999 | Socorro | LINEAR | · | 3.2 km | MPC · JPL |
| 40614 | 1999 RW$_{162}$ | — | September 9, 1999 | Socorro | LINEAR | WIT | 3.6 km | MPC · JPL |
| 40615 | 1999 RD$_{163}$ | — | September 9, 1999 | Socorro | LINEAR | · | 6.9 km | MPC · JPL |
| 40616 | 1999 RW$_{163}$ | — | September 9, 1999 | Socorro | LINEAR | KOR | 3.7 km | MPC · JPL |
| 40617 | 1999 RZ$_{163}$ | — | September 9, 1999 | Socorro | LINEAR | · | 4.6 km | MPC · JPL |
| 40618 | 1999 RG$_{164}$ | — | September 9, 1999 | Socorro | LINEAR | · | 3.3 km | MPC · JPL |
| 40619 | 1999 RQ$_{165}$ | — | September 9, 1999 | Socorro | LINEAR | HEN | 2.5 km | MPC · JPL |
| 40620 | 1999 RH$_{168}$ | — | September 9, 1999 | Socorro | LINEAR | · | 5.2 km | MPC · JPL |
| 40621 | 1999 RG$_{169}$ | — | September 9, 1999 | Socorro | LINEAR | GEF | 3.0 km | MPC · JPL |
| 40622 | 1999 RY$_{169}$ | — | September 9, 1999 | Socorro | LINEAR | NYS | 1.5 km | MPC · JPL |
| 40623 | 1999 RO$_{170}$ | — | September 9, 1999 | Socorro | LINEAR | · | 7.5 km | MPC · JPL |
| 40624 | 1999 RJ$_{171}$ | — | September 9, 1999 | Socorro | LINEAR | · | 1.9 km | MPC · JPL |
| 40625 | 1999 RJ$_{172}$ | — | September 9, 1999 | Socorro | LINEAR | · | 6.3 km | MPC · JPL |
| 40626 | 1999 RP$_{172}$ | — | September 9, 1999 | Socorro | LINEAR | · | 2.4 km | MPC · JPL |
| 40627 | 1999 RJ$_{173}$ | — | September 9, 1999 | Socorro | LINEAR | · | 4.0 km | MPC · JPL |
| 40628 | 1999 RV$_{173}$ | — | September 9, 1999 | Socorro | LINEAR | KRM | 6.0 km | MPC · JPL |
| 40629 | 1999 RX$_{173}$ | — | September 9, 1999 | Socorro | LINEAR | · | 3.1 km | MPC · JPL |
| 40630 | 1999 RA$_{174}$ | — | September 9, 1999 | Socorro | LINEAR | · | 3.9 km | MPC · JPL |
| 40631 | 1999 RX$_{174}$ | — | September 9, 1999 | Socorro | LINEAR | · | 2.4 km | MPC · JPL |
| 40632 | 1999 RJ$_{175}$ | — | September 9, 1999 | Socorro | LINEAR | · | 1.7 km | MPC · JPL |
| 40633 | 1999 RR$_{177}$ | — | September 9, 1999 | Socorro | LINEAR | · | 2.2 km | MPC · JPL |
| 40634 | 1999 RH$_{178}$ | — | September 9, 1999 | Socorro | LINEAR | FLO | 1.5 km | MPC · JPL |
| 40635 | 1999 RV$_{179}$ | — | September 9, 1999 | Socorro | LINEAR | · | 4.6 km | MPC · JPL |
| 40636 | 1999 RW$_{179}$ | — | September 9, 1999 | Socorro | LINEAR | · | 2.6 km | MPC · JPL |
| 40637 | 1999 RP$_{180}$ | — | September 9, 1999 | Socorro | LINEAR | MAR | 2.8 km | MPC · JPL |
| 40638 | 1999 RS$_{180}$ | — | September 9, 1999 | Socorro | LINEAR | · | 2.1 km | MPC · JPL |
| 40639 | 1999 RW$_{180}$ | — | September 9, 1999 | Socorro | LINEAR | NYS · | 3.9 km | MPC · JPL |
| 40640 | 1999 RQ$_{181}$ | — | September 9, 1999 | Socorro | LINEAR | THM | 6.9 km | MPC · JPL |
| 40641 | 1999 RV$_{181}$ | — | September 9, 1999 | Socorro | LINEAR | · | 2.1 km | MPC · JPL |
| 40642 | 1999 RW$_{181}$ | — | September 9, 1999 | Socorro | LINEAR | · | 3.2 km | MPC · JPL |
| 40643 | 1999 RG$_{182}$ | — | September 9, 1999 | Socorro | LINEAR | NYS | 4.6 km | MPC · JPL |
| 40644 | 1999 RH$_{183}$ | — | September 9, 1999 | Socorro | LINEAR | · | 5.0 km | MPC · JPL |
| 40645 | 1999 RS$_{183}$ | — | September 9, 1999 | Socorro | LINEAR | · | 4.1 km | MPC · JPL |
| 40646 | 1999 RV$_{184}$ | — | September 9, 1999 | Socorro | LINEAR | · | 2.1 km | MPC · JPL |
| 40647 | 1999 RD$_{185}$ | — | September 9, 1999 | Socorro | LINEAR | · | 2.2 km | MPC · JPL |
| 40648 | 1999 RO$_{185}$ | — | September 9, 1999 | Socorro | LINEAR | · | 2.7 km | MPC · JPL |
| 40649 | 1999 RY$_{186}$ | — | September 9, 1999 | Socorro | LINEAR | · | 3.3 km | MPC · JPL |
| 40650 | 1999 RS$_{187}$ | — | September 9, 1999 | Socorro | LINEAR | · | 3.6 km | MPC · JPL |
| 40651 | 1999 RJ$_{189}$ | — | September 9, 1999 | Socorro | LINEAR | · | 4.5 km | MPC · JPL |
| 40652 | 1999 RP$_{189}$ | — | September 9, 1999 | Socorro | LINEAR | · | 3.2 km | MPC · JPL |
| 40653 | 1999 RS$_{190}$ | — | September 10, 1999 | Socorro | LINEAR | NYS | 1.4 km | MPC · JPL |
| 40654 | 1999 RH$_{191}$ | — | September 11, 1999 | Socorro | LINEAR | · | 2.6 km | MPC · JPL |
| 40655 | 1999 RM$_{191}$ | — | September 15, 1999 | Kitt Peak | Spacewatch | · | 3.7 km | MPC · JPL |
| 40656 | 1999 RY$_{191}$ | — | September 11, 1999 | Socorro | LINEAR | · | 5.4 km | MPC · JPL |
| 40657 | 1999 RE$_{192}$ | — | September 13, 1999 | Socorro | LINEAR | · | 6.1 km | MPC · JPL |
| 40658 | 1999 RD$_{193}$ | — | September 13, 1999 | Socorro | LINEAR | · | 5.1 km | MPC · JPL |
| 40659 | 1999 RK$_{193}$ | — | September 13, 1999 | Socorro | LINEAR | · | 7.2 km | MPC · JPL |
| 40660 | 1999 RH$_{194}$ | — | September 7, 1999 | Socorro | LINEAR | · | 4.8 km | MPC · JPL |
| 40661 | 1999 RS$_{194}$ | — | September 7, 1999 | Socorro | LINEAR | · | 13 km | MPC · JPL |
| 40662 | 1999 RD$_{195}$ | — | September 8, 1999 | Socorro | LINEAR | GEF | 5.4 km | MPC · JPL |
| 40663 | 1999 RR$_{195}$ | — | September 8, 1999 | Socorro | LINEAR | · | 4.4 km | MPC · JPL |
| 40664 | 1999 RF$_{196}$ | — | September 8, 1999 | Socorro | LINEAR | MAR | 3.5 km | MPC · JPL |
| 40665 | 1999 RE$_{197}$ | — | September 8, 1999 | Socorro | LINEAR | V | 1.8 km | MPC · JPL |
| 40666 | 1999 RS$_{197}$ | — | September 8, 1999 | Socorro | LINEAR | · | 2.8 km | MPC · JPL |
| 40667 | 1999 RB$_{200}$ | — | September 8, 1999 | Socorro | LINEAR | MAR | 5.1 km | MPC · JPL |
| 40668 | 1999 RX$_{200}$ | — | September 8, 1999 | Socorro | LINEAR | · | 2.5 km | MPC · JPL |
| 40669 | 1999 RN$_{201}$ | — | September 8, 1999 | Socorro | LINEAR | EOS | 5.2 km | MPC · JPL |
| 40670 | 1999 RW$_{201}$ | — | September 8, 1999 | Socorro | LINEAR | · | 5.9 km | MPC · JPL |
| 40671 | 1999 RE$_{202}$ | — | September 8, 1999 | Socorro | LINEAR | 629 | 5.4 km | MPC · JPL |
| 40672 | 1999 RJ$_{202}$ | — | September 8, 1999 | Socorro | LINEAR | · | 3.5 km | MPC · JPL |
| 40673 | 1999 RL$_{203}$ | — | September 8, 1999 | Socorro | LINEAR | · | 4.1 km | MPC · JPL |
| 40674 | 1999 RX$_{203}$ | — | September 8, 1999 | Socorro | LINEAR | · | 3.6 km | MPC · JPL |
| 40675 | 1999 RU$_{205}$ | — | September 8, 1999 | Socorro | LINEAR | EOS | 4.8 km | MPC · JPL |
| 40676 | 1999 RN$_{206}$ | — | September 8, 1999 | Socorro | LINEAR | MAR | 3.3 km | MPC · JPL |
| 40677 | 1999 RP$_{206}$ | — | September 8, 1999 | Socorro | LINEAR | ALA | 11 km | MPC · JPL |
| 40678 | 1999 RY$_{206}$ | — | September 8, 1999 | Socorro | LINEAR | · | 3.3 km | MPC · JPL |
| 40679 | 1999 RO$_{207}$ | — | September 8, 1999 | Socorro | LINEAR | EOS | 5.1 km | MPC · JPL |
| 40680 | 1999 RY$_{209}$ | — | September 8, 1999 | Socorro | LINEAR | · | 2.6 km | MPC · JPL |
| 40681 | 1999 RL$_{211}$ | — | September 8, 1999 | Socorro | LINEAR | · | 9.5 km | MPC · JPL |
| 40682 | 1999 RM$_{211}$ | — | September 8, 1999 | Socorro | LINEAR | · | 7.6 km | MPC · JPL |
| 40683 | 1999 RB$_{213}$ | — | September 9, 1999 | Socorro | LINEAR | · | 4.0 km | MPC · JPL |
| 40684 Vanhoeck | 1999 RE$_{214}$ | Vanhoeck | September 8, 1999 | Uccle | T. Pauwels | AGN | 2.5 km | MPC · JPL |
| 40685 | 1999 RL$_{217}$ | — | September 3, 1999 | Anderson Mesa | LONEOS | · | 2.7 km | MPC · JPL |
| 40686 | 1999 RD$_{220}$ | — | September 4, 1999 | Anderson Mesa | LONEOS | · | 6.6 km | MPC · JPL |
| 40687 | 1999 RS$_{220}$ | — | September 5, 1999 | Catalina | CSS | · | 4.1 km | MPC · JPL |
| 40688 | 1999 RL$_{223}$ | — | September 7, 1999 | Socorro | LINEAR | TEL | 5.0 km | MPC · JPL |
| 40689 | 1999 RG$_{224}$ | — | September 7, 1999 | Anderson Mesa | LONEOS | ADE | 6.2 km | MPC · JPL |
| 40690 | 1999 RV$_{225}$ | — | September 4, 1999 | Catalina | CSS | · | 2.8 km | MPC · JPL |
| 40691 | 1999 RH$_{227}$ | — | September 5, 1999 | Catalina | CSS | · | 3.5 km | MPC · JPL |
| 40692 | 1999 RE$_{228}$ | — | September 8, 1999 | Catalina | CSS | V | 3.4 km | MPC · JPL |
| 40693 | 1999 RX$_{229}$ | — | September 8, 1999 | Catalina | CSS | V | 2.0 km | MPC · JPL |
| 40694 | 1999 RY$_{230}$ | — | September 8, 1999 | Catalina | CSS | · | 4.5 km | MPC · JPL |
| 40695 | 1999 RA$_{231}$ | — | September 8, 1999 | Catalina | CSS | · | 2.9 km | MPC · JPL |
| 40696 | 1999 RU$_{231}$ | — | September 9, 1999 | Anderson Mesa | LONEOS | · | 3.2 km | MPC · JPL |
| 40697 | 1999 RZ$_{231}$ | — | September 9, 1999 | Anderson Mesa | LONEOS | V | 3.0 km | MPC · JPL |
| 40698 | 1999 RT$_{232}$ | — | September 8, 1999 | Catalina | CSS | FLO | 2.3 km | MPC · JPL |
| 40699 | 1999 RB$_{235}$ | — | September 8, 1999 | Catalina | CSS | · | 3.9 km | MPC · JPL |
| 40700 | 1999 RF$_{235}$ | — | September 8, 1999 | Catalina | CSS | · | 2.0 km | MPC · JPL |

## 40701–40800

| Designation | Designation | Designation | Discovery | Discovery | Discovery | Properties | Properties | Ref |
| Permanent | Provisional | Citation | Date | Site | Discoverer(s) | Category | Diam. | Ref |
| 40701 | 1999 RG$_{235}$ | — | September 8, 1999 | Catalina | CSS | MRX | 3.9 km | MPC · JPL |
| 40702 | 1999 RH$_{236}$ | — | September 8, 1999 | Catalina | CSS | EUN | 4.3 km | MPC · JPL |
| 40703 | 1999 RR$_{237}$ | — | September 8, 1999 | Catalina | CSS | · | 6.4 km | MPC · JPL |
| 40704 | 1999 RB$_{238}$ | — | September 8, 1999 | Catalina | CSS | GEF | 3.1 km | MPC · JPL |
| 40705 | 1999 RG$_{239}$ | — | September 8, 1999 | Catalina | CSS | · | 6.7 km | MPC · JPL |
| 40706 Milam | 1999 RO$_{240}$ | Milam | September 11, 1999 | Anderson Mesa | LONEOS | FIR | 10 km | MPC · JPL |
| 40707 | 1999 RV$_{240}$ | — | September 11, 1999 | Anderson Mesa | LONEOS | · | 3.7 km | MPC · JPL |
| 40708 | 1999 RR$_{242}$ | — | September 4, 1999 | Anderson Mesa | LONEOS | · | 3.7 km | MPC · JPL |
| 40709 | 1999 RW$_{242}$ | — | September 4, 1999 | Anderson Mesa | LONEOS | · | 4.5 km | MPC · JPL |
| 40710 | 1999 RS$_{245}$ | — | September 7, 1999 | Anderson Mesa | LONEOS | GEF | 3.7 km | MPC · JPL |
| 40711 | 1999 RU$_{245}$ | — | September 7, 1999 | Anderson Mesa | LONEOS | · | 2.5 km | MPC · JPL |
| 40712 | 1999 RB$_{246}$ | — | September 7, 1999 | Anderson Mesa | LONEOS | · | 6.8 km | MPC · JPL |
| 40713 | 1999 RT$_{248}$ | — | September 7, 1999 | Kitt Peak | Spacewatch | KOR | 3.2 km | MPC · JPL |
| 40714 | 1999 RS$_{252}$ | — | September 8, 1999 | Socorro | LINEAR | EOS | 5.2 km | MPC · JPL |
| 40715 | 1999 RX$_{253}$ | — | September 7, 1999 | Socorro | LINEAR | · | 2.0 km | MPC · JPL |
| 40716 | 1999 SL | — | September 16, 1999 | Reedy Creek | J. Broughton | DOR | 11 km | MPC · JPL |
| 40717 | 1999 SC$_2$ | — | September 18, 1999 | Socorro | LINEAR | PHO | 3.9 km | MPC · JPL |
| 40718 | 1999 SU$_2$ | — | September 21, 1999 | Ondřejov | L. Kotková | HYG | 6.2 km | MPC · JPL |
| 40719 | 1999 SZ$_2$ | — | September 29, 1999 | Socorro | LINEAR | · | 2.2 km | MPC · JPL |
| 40720 | 1999 SL$_6$ | — | September 30, 1999 | Socorro | LINEAR | · | 2.9 km | MPC · JPL |
| 40721 | 1999 SM$_6$ | — | September 30, 1999 | Socorro | LINEAR | · | 3.6 km | MPC · JPL |
| 40722 | 1999 SO$_6$ | — | September 30, 1999 | Socorro | LINEAR | · | 3.9 km | MPC · JPL |
| 40723 | 1999 SF$_7$ | — | September 29, 1999 | Socorro | LINEAR | · | 3.2 km | MPC · JPL |
| 40724 | 1999 SY$_8$ | — | September 29, 1999 | Socorro | LINEAR | EUN | 5.4 km | MPC · JPL |
| 40725 | 1999 SP$_9$ | — | September 30, 1999 | Stroncone | Santa Lucia Obs. | EUN | 3.0 km | MPC · JPL |
| 40726 | 1999 SG$_{11}$ | — | September 30, 1999 | Catalina | CSS | EOS | 5.7 km | MPC · JPL |
| 40727 | 1999 SQ$_{11}$ | — | September 30, 1999 | Catalina | CSS | NEM | 6.5 km | MPC · JPL |
| 40728 | 1999 SS$_{11}$ | — | September 30, 1999 | Catalina | CSS | · | 3.8 km | MPC · JPL |
| 40729 | 1999 SJ$_{12}$ | — | September 30, 1999 | Socorro | LINEAR | PHO | 3.9 km | MPC · JPL |
| 40730 | 1999 SY$_{12}$ | — | September 30, 1999 | Socorro | LINEAR | · | 10 km | MPC · JPL |
| 40731 | 1999 SB$_{13}$ | — | September 30, 1999 | Socorro | LINEAR | MAR | 3.8 km | MPC · JPL |
| 40732 | 1999 SC$_{13}$ | — | September 30, 1999 | Socorro | LINEAR | · | 13 km | MPC · JPL |
| 40733 | 1999 SM$_{17}$ | — | September 30, 1999 | Socorro | LINEAR | V | 2.8 km | MPC · JPL |
| 40734 | 1999 SB$_{19}$ | — | September 30, 1999 | Socorro | LINEAR | EUP | 10 km | MPC · JPL |
| 40735 | 1999 SU$_{19}$ | — | September 30, 1999 | Socorro | LINEAR | · | 4.1 km | MPC · JPL |
| 40736 | 1999 SD$_{20}$ | — | September 30, 1999 | Socorro | LINEAR | EUN | 6.4 km | MPC · JPL |
| 40737 | 1999 SE$_{20}$ | — | September 30, 1999 | Socorro | LINEAR | · | 3.8 km | MPC · JPL |
| 40738 | 1999 SG$_{20}$ | — | September 30, 1999 | Socorro | LINEAR | · | 8.9 km | MPC · JPL |
| 40739 | 1999 SX$_{25}$ | — | September 30, 1999 | Catalina | CSS | EUN | 4.1 km | MPC · JPL |
| 40740 | 1999 SF$_{27}$ | — | September 30, 1999 | Catalina | CSS | MAR | 2.6 km | MPC · JPL |
| 40741 | 1999 TD | — | October 1, 1999 | High Point | D. K. Chesney | · | 11 km | MPC · JPL |
| 40742 | 1999 TK | — | October 2, 1999 | Prescott | P. G. Comba | THM | 6.7 km | MPC · JPL |
| 40743 | 1999 TL | — | October 2, 1999 | Prescott | P. G. Comba | THM | 7.2 km | MPC · JPL |
| 40744 | 1999 TG$_1$ | — | October 1, 1999 | Višnjan Observatory | K. Korlević | KOR | 4.2 km | MPC · JPL |
| 40745 | 1999 TN$_2$ | — | October 2, 1999 | Fountain Hills | C. W. Juels | EUN | 4.2 km | MPC · JPL |
| 40746 | 1999 TP$_2$ | — | October 2, 1999 | Fountain Hills | C. W. Juels | · | 5.2 km | MPC · JPL |
| 40747 | 1999 TK$_5$ | — | October 2, 1999 | High Point | D. K. Chesney | · | 4.3 km | MPC · JPL |
| 40748 | 1999 TO$_5$ | — | October 1, 1999 | Višnjan Observatory | K. Korlević, M. Jurić | · | 2.7 km | MPC · JPL |
| 40749 | 1999 TP$_6$ | — | October 6, 1999 | Višnjan Observatory | K. Korlević, M. Jurić | THM | 9.0 km | MPC · JPL |
| 40750 | 1999 TA$_7$ | — | October 6, 1999 | Višnjan Observatory | K. Korlević, M. Jurić | NYS | 1.6 km | MPC · JPL |
| 40751 | 1999 TD$_7$ | — | October 6, 1999 | Višnjan Observatory | K. Korlević, M. Jurić | · | 8.2 km | MPC · JPL |
| 40752 | 1999 TO$_7$ | — | October 7, 1999 | Višnjan Observatory | K. Korlević, M. Jurić | EUN | 5.1 km | MPC · JPL |
| 40753 | 1999 TK$_8$ | — | October 6, 1999 | Višnjan Observatory | K. Korlević, M. Jurić | · | 1.4 km | MPC · JPL |
| 40754 | 1999 TM$_8$ | — | October 6, 1999 | Višnjan Observatory | K. Korlević, M. Jurić | KOR | 3.2 km | MPC · JPL |
| 40755 | 1999 TO$_8$ | — | October 6, 1999 | Višnjan Observatory | K. Korlević, M. Jurić | KOR | 4.7 km | MPC · JPL |
| 40756 | 1999 TQ$_8$ | — | October 7, 1999 | Višnjan Observatory | K. Korlević, M. Jurić | · | 9.1 km | MPC · JPL |
| 40757 | 1999 TS$_8$ | — | October 5, 1999 | Gekko | T. Kagawa | · | 2.6 km | MPC · JPL |
| 40758 | 1999 TT$_8$ | — | October 5, 1999 | Gekko | T. Kagawa | · | 8.7 km | MPC · JPL |
| 40759 | 1999 TY$_9$ | — | October 6, 1999 | Dossobuono | L. Lai | · | 4.7 km | MPC · JPL |
| 40760 | 1999 TH$_{11}$ | — | October 9, 1999 | Fountain Hills | C. W. Juels | · | 15 km | MPC · JPL |
| 40761 | 1999 TT$_{13}$ | — | October 11, 1999 | Črni Vrh | Črni Vrh | · | 5.9 km | MPC · JPL |
| 40762 | 1999 TL$_{14}$ | — | October 11, 1999 | Višnjan Observatory | K. Korlević, M. Jurić | · | 4.4 km | MPC · JPL |
| 40763 Zloch | 1999 TS$_{14}$ | Zloch | October 5, 1999 | Ondřejov | P. Kušnirák | · | 5.7 km | MPC · JPL |
| 40764 Gerhardiser | 1999 TA$_{16}$ | Gerhardiser | October 13, 1999 | Starkenburg Observatory | Starkenburg Obs. | · | 5.5 km | MPC · JPL |
| 40765 | 1999 TF$_{16}$ | — | October 10, 1999 | Bédoin | P. Antonini | HEN | 3.7 km | MPC · JPL |
| 40766 | 1999 TB$_{17}$ | — | October 14, 1999 | Višnjan Observatory | K. Korlević | · | 9.6 km | MPC · JPL |
| 40767 | 1999 TC$_{17}$ | — | October 14, 1999 | Višnjan Observatory | K. Korlević | · | 8.8 km | MPC · JPL |
| 40768 | 1999 TZ$_{17}$ | — | October 10, 1999 | Xinglong | SCAP | · | 3.9 km | MPC · JPL |
| 40769 | 1999 TJ$_{18}$ | — | October 10, 1999 | Xinglong | SCAP | · | 12 km | MPC · JPL |
| 40770 | 1999 TV$_{18}$ | — | October 11, 1999 | Črni Vrh | Črni Vrh | · | 10 km | MPC · JPL |
| 40771 | 1999 TP$_{19}$ | — | October 15, 1999 | Farra d'Isonzo | Farra d'Isonzo | · | 2.7 km | MPC · JPL |
| 40772 | 1999 TY$_{19}$ | — | October 14, 1999 | Xinglong | SCAP | KOR | 3.8 km | MPC · JPL |
| 40773 | 1999 TZ$_{19}$ | — | October 15, 1999 | Xinglong | SCAP | NYS | 1.7 km | MPC · JPL |
| 40774 Iwaigame | 1999 TH$_{20}$ | Iwaigame | October 11, 1999 | Nanyo | T. Okuni | · | 6.8 km | MPC · JPL |
| 40775 Kalafina | 1999 TO$_{20}$ | Kalafina | October 5, 1999 | Goodricke-Pigott | R. A. Tucker | · | 7.5 km | MPC · JPL |
| 40776 Yeungkwongyu | 1999 TA$_{21}$ | Yeungkwongyu | October 7, 1999 | Goodricke-Pigott | R. A. Tucker | · | 8.0 km | MPC · JPL |
| 40777 | 1999 TM$_{25}$ | — | October 3, 1999 | Socorro | LINEAR | · | 3.8 km | MPC · JPL |
| 40778 | 1999 TV$_{25}$ | — | October 3, 1999 | Socorro | LINEAR | · | 5.2 km | MPC · JPL |
| 40779 | 1999 TY$_{25}$ | — | October 3, 1999 | Socorro | LINEAR | URS | 5.0 km | MPC · JPL |
| 40780 | 1999 TB$_{26}$ | — | October 3, 1999 | Socorro | LINEAR | MRX | 3.4 km | MPC · JPL |
| 40781 | 1999 TN$_{26}$ | — | October 3, 1999 | Socorro | LINEAR | · | 5.0 km | MPC · JPL |
| 40782 | 1999 TX$_{26}$ | — | October 3, 1999 | Socorro | LINEAR | KAR | 3.2 km | MPC · JPL |
| 40783 | 1999 TT$_{28}$ | — | October 4, 1999 | Socorro | LINEAR | KOR | 2.8 km | MPC · JPL |
| 40784 | 1999 TV$_{28}$ | — | October 4, 1999 | Socorro | LINEAR | HEN | 2.9 km | MPC · JPL |
| 40785 | 1999 TA$_{29}$ | — | October 4, 1999 | Socorro | LINEAR | · | 3.8 km | MPC · JPL |
| 40786 | 1999 TR$_{30}$ | — | October 4, 1999 | Socorro | LINEAR | · | 3.3 km | MPC · JPL |
| 40787 | 1999 TV$_{30}$ | — | October 4, 1999 | Socorro | LINEAR | EUN | 5.1 km | MPC · JPL |
| 40788 | 1999 TK$_{31}$ | — | October 4, 1999 | Socorro | LINEAR | HYG | 7.6 km | MPC · JPL |
| 40789 | 1999 TW$_{31}$ | — | October 4, 1999 | Socorro | LINEAR | KAR | 3.4 km | MPC · JPL |
| 40790 | 1999 TP$_{32}$ | — | October 4, 1999 | Socorro | LINEAR | · | 2.1 km | MPC · JPL |
| 40791 | 1999 TO$_{33}$ | — | October 4, 1999 | Socorro | LINEAR | HEN | 3.0 km | MPC · JPL |
| 40792 | 1999 TY$_{33}$ | — | October 4, 1999 | Socorro | LINEAR | KOR | 2.9 km | MPC · JPL |
| 40793 | 1999 TZ$_{33}$ | — | October 4, 1999 | Socorro | LINEAR | · | 2.6 km | MPC · JPL |
| 40794 | 1999 TD$_{36}$ | — | October 2, 1999 | Anderson Mesa | LONEOS | · | 3.9 km | MPC · JPL |
| 40795 Akiratsuchiyama | 1999 TF$_{36}$ | Akiratsuchiyama | October 5, 1999 | Anderson Mesa | LONEOS | V | 3.0 km | MPC · JPL |
| 40796 | 1999 TT$_{36}$ | — | October 13, 1999 | Anderson Mesa | LONEOS | · | 6.6 km | MPC · JPL |
| 40797 | 1999 TM$_{37}$ | — | October 15, 1999 | Anderson Mesa | LONEOS | · | 8.1 km | MPC · JPL |
| 40798 | 1999 TV$_{37}$ | — | October 1, 1999 | Catalina | CSS | · | 3.4 km | MPC · JPL |
| 40799 | 1999 TW$_{37}$ | — | October 1, 1999 | Catalina | CSS | · | 4.8 km | MPC · JPL |
| 40800 | 1999 TD$_{38}$ | — | October 1, 1999 | Catalina | CSS | NYS | 1.8 km | MPC · JPL |

## 40801–40900

| Designation | Designation | Designation | Discovery | Discovery | Discovery | Properties | Properties | Ref |
| Permanent | Provisional | Citation | Date | Site | Discoverer(s) | Category | Diam. | Ref |
| 40801 | 1999 TN$_{38}$ | — | October 1, 1999 | Catalina | CSS | · | 6.1 km | MPC · JPL |
| 40802 | 1999 TL$_{39}$ | — | October 3, 1999 | Catalina | CSS | · | 1.9 km | MPC · JPL |
| 40803 | 1999 TX$_{39}$ | — | October 3, 1999 | Catalina | CSS | ADE | 8.8 km | MPC · JPL |
| 40804 | 1999 TQ$_{40}$ | — | October 5, 1999 | Catalina | CSS | · | 7.5 km | MPC · JPL |
| 40805 | 1999 TW$_{41}$ | — | October 3, 1999 | Kitt Peak | Spacewatch | · | 1.8 km | MPC · JPL |
| 40806 | 1999 TX$_{41}$ | — | October 3, 1999 | Kitt Peak | Spacewatch | NYS | 1.4 km | MPC · JPL |
| 40807 | 1999 TQ$_{48}$ | — | October 4, 1999 | Kitt Peak | Spacewatch | · | 2.9 km | MPC · JPL |
| 40808 | 1999 TB$_{53}$ | — | October 6, 1999 | Kitt Peak | Spacewatch | · | 5.5 km | MPC · JPL |
| 40809 | 1999 TZ$_{57}$ | — | October 6, 1999 | Kitt Peak | Spacewatch | URS | 5.8 km | MPC · JPL |
| 40810 | 1999 TK$_{63}$ | — | October 7, 1999 | Kitt Peak | Spacewatch | · | 3.5 km | MPC · JPL |
| 40811 | 1999 TL$_{63}$ | — | October 7, 1999 | Kitt Peak | Spacewatch | · | 7.2 km | MPC · JPL |
| 40812 | 1999 TV$_{63}$ | — | October 7, 1999 | Kitt Peak | Spacewatch | ANF | 3.4 km | MPC · JPL |
| 40813 | 1999 TJ$_{66}$ | — | October 8, 1999 | Kitt Peak | Spacewatch | EOS | 5.4 km | MPC · JPL |
| 40814 | 1999 TY$_{69}$ | — | October 9, 1999 | Kitt Peak | Spacewatch | KOR | 3.2 km | MPC · JPL |
| 40815 | 1999 TY$_{77}$ | — | October 11, 1999 | Kitt Peak | Spacewatch | · | 3.6 km | MPC · JPL |
| 40816 | 1999 TX$_{78}$ | — | October 11, 1999 | Kitt Peak | Spacewatch | · | 5.9 km | MPC · JPL |
| 40817 | 1999 TT$_{79}$ | — | October 11, 1999 | Kitt Peak | Spacewatch | · | 6.7 km | MPC · JPL |
| 40818 | 1999 TR$_{80}$ | — | October 11, 1999 | Kitt Peak | Spacewatch | NYS | 1.5 km | MPC · JPL |
| 40819 | 1999 TT$_{80}$ | — | October 11, 1999 | Kitt Peak | Spacewatch | KOR | 3.5 km | MPC · JPL |
| 40820 | 1999 TY$_{89}$ | — | October 2, 1999 | Socorro | LINEAR | KOR | 3.5 km | MPC · JPL |
| 40821 | 1999 TD$_{90}$ | — | October 2, 1999 | Socorro | LINEAR | · | 3.5 km | MPC · JPL |
| 40822 | 1999 TM$_{90}$ | — | October 2, 1999 | Socorro | LINEAR | · | 3.8 km | MPC · JPL |
| 40823 | 1999 TU$_{90}$ | — | October 2, 1999 | Socorro | LINEAR | ADE · | 3.9 km | MPC · JPL |
| 40824 | 1999 TV$_{90}$ | — | October 2, 1999 | Socorro | LINEAR | · | 5.8 km | MPC · JPL |
| 40825 | 1999 TZ$_{90}$ | — | October 2, 1999 | Socorro | LINEAR | V | 2.3 km | MPC · JPL |
| 40826 | 1999 TP$_{91}$ | — | October 2, 1999 | Socorro | LINEAR | · | 2.9 km | MPC · JPL |
| 40827 | 1999 TT$_{92}$ | — | October 2, 1999 | Socorro | LINEAR | NYS | 5.3 km | MPC · JPL |
| 40828 | 1999 TM$_{93}$ | — | October 2, 1999 | Socorro | LINEAR | · | 6.3 km | MPC · JPL |
| 40829 | 1999 TT$_{93}$ | — | October 2, 1999 | Socorro | LINEAR | · | 4.4 km | MPC · JPL |
| 40830 | 1999 TV$_{93}$ | — | October 2, 1999 | Socorro | LINEAR | NYS · | 5.1 km | MPC · JPL |
| 40831 | 1999 TU$_{94}$ | — | October 2, 1999 | Socorro | LINEAR | · | 3.5 km | MPC · JPL |
| 40832 | 1999 TH$_{95}$ | — | October 2, 1999 | Socorro | LINEAR | · | 5.8 km | MPC · JPL |
| 40833 | 1999 TJ$_{95}$ | — | October 2, 1999 | Socorro | LINEAR | · | 5.5 km | MPC · JPL |
| 40834 | 1999 TL$_{95}$ | — | October 2, 1999 | Socorro | LINEAR | · | 3.8 km | MPC · JPL |
| 40835 | 1999 TM$_{95}$ | — | October 2, 1999 | Socorro | LINEAR | · | 5.1 km | MPC · JPL |
| 40836 | 1999 TQ$_{95}$ | — | October 2, 1999 | Socorro | LINEAR | · | 7.9 km | MPC · JPL |
| 40837 | 1999 TX$_{95}$ | — | October 2, 1999 | Socorro | LINEAR | HEN | 2.9 km | MPC · JPL |
| 40838 | 1999 TY$_{95}$ | — | October 2, 1999 | Socorro | LINEAR | MRX · | 5.9 km | MPC · JPL |
| 40839 | 1999 TH$_{96}$ | — | October 2, 1999 | Socorro | LINEAR | AGN | 3.0 km | MPC · JPL |
| 40840 | 1999 TS$_{96}$ | — | October 2, 1999 | Socorro | LINEAR | EOS | 6.4 km | MPC · JPL |
| 40841 | 1999 TQ$_{98}$ | — | October 2, 1999 | Socorro | LINEAR | GEF | 4.5 km | MPC · JPL |
| 40842 | 1999 TX$_{98}$ | — | October 2, 1999 | Socorro | LINEAR | · | 4.6 km | MPC · JPL |
| 40843 | 1999 TD$_{99}$ | — | October 2, 1999 | Socorro | LINEAR | · | 2.2 km | MPC · JPL |
| 40844 | 1999 TS$_{101}$ | — | October 2, 1999 | Socorro | LINEAR | · | 4.4 km | MPC · JPL |
| 40845 | 1999 TL$_{102}$ | — | October 2, 1999 | Socorro | LINEAR | · | 4.9 km | MPC · JPL |
| 40846 | 1999 TN$_{102}$ | — | October 2, 1999 | Socorro | LINEAR | · | 2.6 km | MPC · JPL |
| 40847 | 1999 TU$_{102}$ | — | October 2, 1999 | Socorro | LINEAR | · | 10 km | MPC · JPL |
| 40848 | 1999 TZ$_{102}$ | — | October 2, 1999 | Socorro | LINEAR | · | 4.3 km | MPC · JPL |
| 40849 | 1999 TG$_{103}$ | — | October 2, 1999 | Socorro | LINEAR | · | 3.5 km | MPC · JPL |
| 40850 | 1999 TR$_{104}$ | — | October 3, 1999 | Socorro | LINEAR | · | 7.4 km | MPC · JPL |
| 40851 | 1999 TZ$_{104}$ | — | October 3, 1999 | Socorro | LINEAR | · | 3.3 km | MPC · JPL |
| 40852 | 1999 TX$_{105}$ | — | October 3, 1999 | Socorro | LINEAR | TRP | 8.4 km | MPC · JPL |
| 40853 | 1999 TA$_{106}$ | — | October 4, 1999 | Socorro | LINEAR | GAL | 4.7 km | MPC · JPL |
| 40854 | 1999 TU$_{107}$ | — | October 4, 1999 | Socorro | LINEAR | EUN | 4.3 km | MPC · JPL |
| 40855 | 1999 TG$_{108}$ | — | October 4, 1999 | Socorro | LINEAR | EOS | 6.9 km | MPC · JPL |
| 40856 | 1999 TP$_{108}$ | — | October 4, 1999 | Socorro | LINEAR | · | 4.8 km | MPC · JPL |
| 40857 | 1999 TP$_{110}$ | — | October 4, 1999 | Socorro | LINEAR | · | 4.4 km | MPC · JPL |
| 40858 | 1999 TR$_{110}$ | — | October 4, 1999 | Socorro | LINEAR | · | 5.7 km | MPC · JPL |
| 40859 | 1999 TX$_{111}$ | — | October 4, 1999 | Socorro | LINEAR | · | 5.7 km | MPC · JPL |
| 40860 | 1999 TQ$_{113}$ | — | October 4, 1999 | Socorro | LINEAR | · | 5.5 km | MPC · JPL |
| 40861 | 1999 TR$_{113}$ | — | October 4, 1999 | Socorro | LINEAR | WIT | 2.6 km | MPC · JPL |
| 40862 | 1999 TB$_{114}$ | — | October 4, 1999 | Socorro | LINEAR | · | 7.7 km | MPC · JPL |
| 40863 | 1999 TL$_{115}$ | — | October 4, 1999 | Socorro | LINEAR | · | 3.1 km | MPC · JPL |
| 40864 | 1999 TO$_{115}$ | — | October 4, 1999 | Socorro | LINEAR | EOS | 6.2 km | MPC · JPL |
| 40865 | 1999 TH$_{116}$ | — | October 4, 1999 | Socorro | LINEAR | HEN | 2.8 km | MPC · JPL |
| 40866 | 1999 TU$_{117}$ | — | October 4, 1999 | Socorro | LINEAR | · | 3.9 km | MPC · JPL |
| 40867 | 1999 TD$_{118}$ | — | October 4, 1999 | Socorro | LINEAR | · | 3.4 km | MPC · JPL |
| 40868 | 1999 TM$_{118}$ | — | October 4, 1999 | Socorro | LINEAR | · | 3.0 km | MPC · JPL |
| 40869 | 1999 TN$_{118}$ | — | October 4, 1999 | Socorro | LINEAR | · | 3.6 km | MPC · JPL |
| 40870 | 1999 TQ$_{119}$ | — | October 4, 1999 | Socorro | LINEAR | · | 4.3 km | MPC · JPL |
| 40871 | 1999 TS$_{120}$ | — | October 4, 1999 | Socorro | LINEAR | · | 3.8 km | MPC · JPL |
| 40872 | 1999 TB$_{121}$ | — | October 4, 1999 | Socorro | LINEAR | THM | 8.1 km | MPC · JPL |
| 40873 | 1999 TL$_{121}$ | — | October 4, 1999 | Socorro | LINEAR | HEN | 3.1 km | MPC · JPL |
| 40874 | 1999 TL$_{122}$ | — | October 4, 1999 | Socorro | LINEAR | NYS | 1.8 km | MPC · JPL |
| 40875 | 1999 TA$_{123}$ | — | October 4, 1999 | Socorro | LINEAR | · | 3.0 km | MPC · JPL |
| 40876 | 1999 TH$_{123}$ | — | October 4, 1999 | Socorro | LINEAR | AGN | 2.7 km | MPC · JPL |
| 40877 | 1999 TF$_{124}$ | — | October 15, 1999 | Socorro | LINEAR | · | 5.0 km | MPC · JPL |
| 40878 | 1999 TU$_{124}$ | — | October 4, 1999 | Socorro | LINEAR | · | 3.2 km | MPC · JPL |
| 40879 | 1999 TX$_{124}$ | — | October 4, 1999 | Socorro | LINEAR | V | 2.0 km | MPC · JPL |
| 40880 | 1999 TA$_{125}$ | — | October 4, 1999 | Socorro | LINEAR | · | 5.0 km | MPC · JPL |
| 40881 | 1999 TY$_{125}$ | — | October 4, 1999 | Socorro | LINEAR | · | 2.4 km | MPC · JPL |
| 40882 | 1999 TZ$_{125}$ | — | October 4, 1999 | Socorro | LINEAR | · | 7.3 km | MPC · JPL |
| 40883 | 1999 TB$_{126}$ | — | October 4, 1999 | Socorro | LINEAR | · | 5.4 km | MPC · JPL |
| 40884 | 1999 TC$_{126}$ | — | October 4, 1999 | Socorro | LINEAR | · | 2.0 km | MPC · JPL |
| 40885 | 1999 TS$_{126}$ | — | October 4, 1999 | Socorro | LINEAR | · | 6.2 km | MPC · JPL |
| 40886 | 1999 TE$_{127}$ | — | October 4, 1999 | Socorro | LINEAR | · | 2.3 km | MPC · JPL |
| 40887 | 1999 TG$_{128}$ | — | October 4, 1999 | Socorro | LINEAR | KOR | 3.6 km | MPC · JPL |
| 40888 | 1999 TW$_{131}$ | — | October 6, 1999 | Socorro | LINEAR | KOR | 2.6 km | MPC · JPL |
| 40889 | 1999 TY$_{132}$ | — | October 6, 1999 | Socorro | LINEAR | HEN | 2.3 km | MPC · JPL |
| 40890 | 1999 TE$_{133}$ | — | October 6, 1999 | Socorro | LINEAR | · | 7.5 km | MPC · JPL |
| 40891 | 1999 TH$_{136}$ | — | October 6, 1999 | Socorro | LINEAR | · | 3.3 km | MPC · JPL |
| 40892 | 1999 TY$_{136}$ | — | October 6, 1999 | Socorro | LINEAR | HYG | 6.2 km | MPC · JPL |
| 40893 | 1999 TL$_{138}$ | — | October 6, 1999 | Socorro | LINEAR | AGN · slow | 3.4 km | MPC · JPL |
| 40894 | 1999 TQ$_{138}$ | — | October 6, 1999 | Socorro | LINEAR | · | 1.7 km | MPC · JPL |
| 40895 | 1999 TZ$_{140}$ | — | October 6, 1999 | Socorro | LINEAR | · | 4.6 km | MPC · JPL |
| 40896 | 1999 TO$_{141}$ | — | October 6, 1999 | Socorro | LINEAR | HEN | 2.0 km | MPC · JPL |
| 40897 | 1999 TG$_{142}$ | — | October 7, 1999 | Socorro | LINEAR | · | 3.3 km | MPC · JPL |
| 40898 | 1999 TP$_{142}$ | — | October 7, 1999 | Socorro | LINEAR | · | 2.9 km | MPC · JPL |
| 40899 | 1999 TR$_{142}$ | — | October 7, 1999 | Socorro | LINEAR | · | 3.4 km | MPC · JPL |
| 40900 | 1999 TV$_{142}$ | — | October 7, 1999 | Socorro | LINEAR | · | 5.3 km | MPC · JPL |

## 40901–41000

| Designation | Designation | Designation | Discovery | Discovery | Discovery | Properties | Properties | Ref |
| Permanent | Provisional | Citation | Date | Site | Discoverer(s) | Category | Diam. | Ref |
| 40901 | 1999 TG$_{143}$ | — | October 7, 1999 | Socorro | LINEAR | · | 8.4 km | MPC · JPL |
| 40902 | 1999 TY$_{143}$ | — | October 7, 1999 | Socorro | LINEAR | · | 6.4 km | MPC · JPL |
| 40903 | 1999 TB$_{144}$ | — | October 7, 1999 | Socorro | LINEAR | GEF | 4.3 km | MPC · JPL |
| 40904 | 1999 TC$_{144}$ | — | October 7, 1999 | Socorro | LINEAR | · | 2.1 km | MPC · JPL |
| 40905 | 1999 TE$_{148}$ | — | October 7, 1999 | Socorro | LINEAR | · | 7.4 km | MPC · JPL |
| 40906 | 1999 TN$_{148}$ | — | October 7, 1999 | Socorro | LINEAR | BRA | 5.4 km | MPC · JPL |
| 40907 | 1999 TF$_{149}$ | — | October 7, 1999 | Socorro | LINEAR | · | 5.5 km | MPC · JPL |
| 40908 | 1999 TW$_{151}$ | — | October 7, 1999 | Socorro | LINEAR | · | 3.9 km | MPC · JPL |
| 40909 | 1999 TR$_{152}$ | — | October 7, 1999 | Socorro | LINEAR | · | 6.7 km | MPC · JPL |
| 40910 | 1999 TS$_{152}$ | — | October 7, 1999 | Socorro | LINEAR | NYS | 1.7 km | MPC · JPL |
| 40911 | 1999 TU$_{152}$ | — | October 7, 1999 | Socorro | LINEAR | · | 2.8 km | MPC · JPL |
| 40912 | 1999 TX$_{152}$ | — | October 7, 1999 | Socorro | LINEAR | · | 11 km | MPC · JPL |
| 40913 | 1999 TZ$_{152}$ | — | October 7, 1999 | Socorro | LINEAR | · | 2.1 km | MPC · JPL |
| 40914 | 1999 TH$_{155}$ | — | October 7, 1999 | Socorro | LINEAR | · | 5.7 km | MPC · JPL |
| 40915 | 1999 TT$_{155}$ | — | October 7, 1999 | Socorro | LINEAR | PAD | 6.4 km | MPC · JPL |
| 40916 | 1999 TE$_{156}$ | — | October 7, 1999 | Socorro | LINEAR | EOS | 6.1 km | MPC · JPL |
| 40917 Pauljorden | 1999 TW$_{156}$ | Pauljorden | October 9, 1999 | Socorro | LINEAR | HYG | 7.1 km | MPC · JPL |
| 40918 | 1999 TG$_{158}$ | — | October 7, 1999 | Socorro | LINEAR | · | 7.2 km | MPC · JPL |
| 40919 Johntonry | 1999 TF$_{162}$ | Johntonry | October 9, 1999 | Socorro | LINEAR | · | 2.5 km | MPC · JPL |
| 40920 | 1999 TD$_{171}$ | — | October 10, 1999 | Socorro | LINEAR | KOR | 3.5 km | MPC · JPL |
| 40921 | 1999 TR$_{171}$ | — | October 10, 1999 | Socorro | LINEAR | KAR | 3.5 km | MPC · JPL |
| 40922 | 1999 TH$_{172}$ | — | October 10, 1999 | Socorro | LINEAR | PAD | 6.1 km | MPC · JPL |
| 40923 | 1999 TB$_{173}$ | — | October 10, 1999 | Socorro | LINEAR | EOS | 5.7 km | MPC · JPL |
| 40924 | 1999 TB$_{174}$ | — | October 10, 1999 | Socorro | LINEAR | EOS | 5.4 km | MPC · JPL |
| 40925 | 1999 TL$_{174}$ | — | October 10, 1999 | Socorro | LINEAR | · | 2.1 km | MPC · JPL |
| 40926 | 1999 TQ$_{177}$ | — | October 10, 1999 | Socorro | LINEAR | · | 5.3 km | MPC · JPL |
| 40927 | 1999 TZ$_{185}$ | — | October 12, 1999 | Socorro | LINEAR | ADE | 7.1 km | MPC · JPL |
| 40928 | 1999 TB$_{187}$ | — | October 12, 1999 | Socorro | LINEAR | · | 7.6 km | MPC · JPL |
| 40929 | 1999 TB$_{188}$ | — | October 12, 1999 | Socorro | LINEAR | · | 4.8 km | MPC · JPL |
| 40930 | 1999 TJ$_{189}$ | — | October 12, 1999 | Socorro | LINEAR | · | 8.3 km | MPC · JPL |
| 40931 | 1999 TX$_{189}$ | — | October 12, 1999 | Socorro | LINEAR | · | 2.8 km | MPC · JPL |
| 40932 | 1999 TF$_{191}$ | — | October 12, 1999 | Socorro | LINEAR | EOS | 6.2 km | MPC · JPL |
| 40933 | 1999 TP$_{192}$ | — | October 12, 1999 | Socorro | LINEAR | · | 9.7 km | MPC · JPL |
| 40934 | 1999 TJ$_{194}$ | — | October 12, 1999 | Socorro | LINEAR | GEF | 4.9 km | MPC · JPL |
| 40935 | 1999 TO$_{195}$ | — | October 12, 1999 | Socorro | LINEAR | · | 7.5 km | MPC · JPL |
| 40936 | 1999 TP$_{200}$ | — | October 13, 1999 | Socorro | LINEAR | · | 1.9 km | MPC · JPL |
| 40937 | 1999 TQ$_{200}$ | — | October 13, 1999 | Socorro | LINEAR | · | 2.0 km | MPC · JPL |
| 40938 | 1999 TO$_{205}$ | — | October 13, 1999 | Socorro | LINEAR | AGN | 3.7 km | MPC · JPL |
| 40939 | 1999 TU$_{209}$ | — | October 14, 1999 | Socorro | LINEAR | EOS | 4.7 km | MPC · JPL |
| 40940 | 1999 TZ$_{209}$ | — | October 14, 1999 | Socorro | LINEAR | · | 12 km | MPC · JPL |
| 40941 | 1999 TS$_{211}$ | — | October 15, 1999 | Socorro | LINEAR | · | 5.4 km | MPC · JPL |
| 40942 | 1999 TZ$_{212}$ | — | October 15, 1999 | Socorro | LINEAR | · | 4.7 km | MPC · JPL |
| 40943 | 1999 TT$_{213}$ | — | October 15, 1999 | Socorro | LINEAR | KOR | 3.2 km | MPC · JPL |
| 40944 | 1999 TJ$_{216}$ | — | October 15, 1999 | Socorro | LINEAR | KOR | 4.0 km | MPC · JPL |
| 40945 | 1999 TX$_{216}$ | — | October 15, 1999 | Socorro | LINEAR | VIB | 7.0 km | MPC · JPL |
| 40946 | 1999 TK$_{217}$ | — | October 15, 1999 | Socorro | LINEAR | · | 2.3 km | MPC · JPL |
| 40947 | 1999 TJ$_{218}$ | — | October 15, 1999 | Socorro | LINEAR | · | 2.8 km | MPC · JPL |
| 40948 | 1999 TH$_{228}$ | — | October 2, 1999 | Socorro | LINEAR | KOR · | 3.2 km | MPC · JPL |
| 40949 | 1999 TQ$_{228}$ | — | October 2, 1999 | Catalina | CSS | · | 5.9 km | MPC · JPL |
| 40950 | 1999 TQ$_{229}$ | — | October 5, 1999 | Catalina | CSS | · | 8.0 km | MPC · JPL |
| 40951 | 1999 TO$_{230}$ | — | October 4, 1999 | Anderson Mesa | LONEOS | · | 6.3 km | MPC · JPL |
| 40952 | 1999 TD$_{231}$ | — | October 5, 1999 | Catalina | CSS | PAD | 4.9 km | MPC · JPL |
| 40953 | 1999 TB$_{237}$ | — | October 3, 1999 | Catalina | CSS | · | 2.3 km | MPC · JPL |
| 40954 | 1999 TQ$_{238}$ | — | October 4, 1999 | Catalina | CSS | 628 | 5.7 km | MPC · JPL |
| 40955 | 1999 TQ$_{241}$ | — | October 4, 1999 | Catalina | CSS | DOR | 8.4 km | MPC · JPL |
| 40956 Ericamsel | 1999 TZ$_{241}$ | Ericamsel | October 4, 1999 | Catalina | CSS | KRM | 6.2 km | MPC · JPL |
| 40957 | 1999 TR$_{242}$ | — | October 4, 1999 | Catalina | CSS | EOS | 5.6 km | MPC · JPL |
| 40958 | 1999 TV$_{242}$ | — | October 4, 1999 | Catalina | CSS | · | 3.1 km | MPC · JPL |
| 40959 | 1999 TB$_{243}$ | — | October 4, 1999 | Anderson Mesa | LONEOS | · | 13 km | MPC · JPL |
| 40960 | 1999 TL$_{244}$ | — | October 7, 1999 | Catalina | CSS | · | 5.7 km | MPC · JPL |
| 40961 | 1999 TV$_{247}$ | — | October 8, 1999 | Catalina | CSS | · | 5.9 km | MPC · JPL |
| 40962 | 1999 TW$_{247}$ | — | October 8, 1999 | Catalina | CSS | HYG | 9.9 km | MPC · JPL |
| 40963 | 1999 TZ$_{247}$ | — | October 8, 1999 | Catalina | CSS | · | 11 km | MPC · JPL |
| 40964 | 1999 TE$_{248}$ | — | October 8, 1999 | Catalina | CSS | · | 8.4 km | MPC · JPL |
| 40965 | 1999 TH$_{249}$ | — | October 9, 1999 | Catalina | CSS | · | 3.1 km | MPC · JPL |
| 40966 | 1999 TM$_{250}$ | — | October 9, 1999 | Catalina | CSS | · | 5.8 km | MPC · JPL |
| 40967 | 1999 TC$_{251}$ | — | October 5, 1999 | Socorro | LINEAR | · | 9.1 km | MPC · JPL |
| 40968 | 1999 TO$_{254}$ | — | October 8, 1999 | Socorro | LINEAR | · | 3.7 km | MPC · JPL |
| 40969 | 1999 TR$_{258}$ | — | October 9, 1999 | Socorro | LINEAR | · | 2.6 km | MPC · JPL |
| 40970 | 1999 TK$_{261}$ | — | October 14, 1999 | Anderson Mesa | LONEOS | · | 8.0 km | MPC · JPL |
| 40971 | 1999 TY$_{264}$ | — | October 3, 1999 | Socorro | LINEAR | HNS | 3.6 km | MPC · JPL |
| 40972 | 1999 TL$_{267}$ | — | October 3, 1999 | Socorro | LINEAR | · | 9.0 km | MPC · JPL |
| 40973 | 1999 TL$_{269}$ | — | October 3, 1999 | Socorro | LINEAR | EOS | 4.0 km | MPC · JPL |
| 40974 | 1999 TS$_{269}$ | — | October 3, 1999 | Socorro | LINEAR | · | 7.5 km | MPC · JPL |
| 40975 | 1999 TU$_{269}$ | — | October 3, 1999 | Socorro | LINEAR | · | 4.6 km | MPC · JPL |
| 40976 | 1999 TV$_{272}$ | — | October 3, 1999 | Socorro | LINEAR | LIX | 12 km | MPC · JPL |
| 40977 | 1999 TD$_{279}$ | — | October 7, 1999 | Socorro | LINEAR | EOS | 4.3 km | MPC · JPL |
| 40978 | 1999 TN$_{279}$ | — | October 7, 1999 | Socorro | LINEAR | HNS | 2.7 km | MPC · JPL |
| 40979 | 1999 TL$_{280}$ | — | October 8, 1999 | Socorro | LINEAR | · | 3.1 km | MPC · JPL |
| 40980 | 1999 TO$_{282}$ | — | October 9, 1999 | Socorro | LINEAR | · | 4.8 km | MPC · JPL |
| 40981 Stephenholland | 1999 TL$_{284}$ | Stephenholland | October 9, 1999 | Socorro | LINEAR | · | 5.6 km | MPC · JPL |
| 40982 | 1999 TR$_{285}$ | — | October 10, 1999 | Socorro | LINEAR | · | 4.3 km | MPC · JPL |
| 40983 | 1999 TB$_{286}$ | — | October 10, 1999 | Socorro | LINEAR | MAR | 2.9 km | MPC · JPL |
| 40984 | 1999 TL$_{288}$ | — | October 10, 1999 | Socorro | LINEAR | EOS | 4.8 km | MPC · JPL |
| 40985 | 1999 TM$_{288}$ | — | October 10, 1999 | Socorro | LINEAR | THM | 8.0 km | MPC · JPL |
| 40986 | 1999 TY$_{292}$ | — | October 12, 1999 | Socorro | LINEAR | · | 3.6 km | MPC · JPL |
| 40987 | 1999 TJ$_{293}$ | — | October 12, 1999 | Socorro | LINEAR | EOS | 4.9 km | MPC · JPL |
| 40988 | 1999 TN$_{311}$ | — | October 7, 1999 | Catalina | CSS | · | 6.4 km | MPC · JPL |
| 40989 | 1999 UO | — | October 16, 1999 | Višnjan Observatory | K. Korlević | · | 6.1 km | MPC · JPL |
| 40990 | 1999 UW | — | October 16, 1999 | Višnjan Observatory | K. Korlević | HEN | 3.4 km | MPC · JPL |
| 40991 | 1999 UA$_1$ | — | October 16, 1999 | Višnjan Observatory | K. Korlević | · | 2.1 km | MPC · JPL |
| 40992 | 1999 UL$_1$ | — | October 18, 1999 | High Point | D. K. Chesney | · | 7.6 km | MPC · JPL |
| 40993 | 1999 UF$_2$ | — | October 16, 1999 | Višnjan Observatory | K. Korlević | · | 3.3 km | MPC · JPL |
| 40994 Tekaridake | 1999 UZ$_2$ | Tekaridake | October 20, 1999 | Mishima | M. Akiyama | EUN | 4.6 km | MPC · JPL |
| 40995 Mühleis | 1999 UC$_4$ | Mühleis | October 27, 1999 | Starkenburg Observatory | Starkenburg Obs. | · | 2.6 km | MPC · JPL |
| 40996 | 1999 UO$_5$ | — | October 28, 1999 | Catalina | CSS | · | 3.4 km | MPC · JPL |
| 40997 | 1999 UE$_6$ | — | October 27, 1999 | Xinglong | SCAP | · | 5.2 km | MPC · JPL |
| 40998 | 1999 US$_7$ | — | October 29, 1999 | Catalina | CSS | · | 9.3 km | MPC · JPL |
| 40999 | 1999 UU$_8$ | — | October 29, 1999 | Catalina | CSS | · | 4.9 km | MPC · JPL |
| 41000 | 1999 UB$_9$ | — | October 29, 1999 | Catalina | CSS | HOF | 7.4 km | MPC · JPL |