# List of asteroid close approaches to Earth in 2019

Below is the list of asteroid close approaches to Earth in 2019.

## Timeline of known close approaches less than one lunar distance from Earth

A list of known near-Earth asteroid close approaches less than 1 lunar distance (0.0025696 AU (384,410 km; 238,860 mi)) from Earth in 2019, based on the close approach database of the Center for Near-Earth Object Studies (CNEOS). 2019 was the first year ever when four close approaches of previously undiscovered asteroids were successfully predicted over a week in advance.
For reference, the radius of Earth is approximately 0.0000426 AU (6,370 km; 3,960 mi) or 0.0166 lunar distances. Geosynchronous satellites have an orbit with semi-major axis length of 0.000282 AU (42,200 km; 26,200 mi) or 0.110 lunar distances. A number of known asteroids came closer than this in 2019.
The largest asteroid to pass within 1 LD of Earth in 2019 was 2019 OK with an estimated diameter of around 95 meters and an absolute magnitude of 23.3. The fastest asteroid to pass within 1 LD of Earth in 2019 was 2019 FC$_1$ that passed Earth with a velocity with respect to Earth of 25.9 km/s (58,000 mph).
The CNEOS database of close approaches lists some close approaches a full orbit or more before the discovery of the object, derived by orbit calculation. The list below only includes close approaches that are evidenced by observations, thus the pre-discovery close approaches are only included if the object was found by precovery.
This list and relevant databases do not consider impacts as close approaches, thus this list does not include 2019 MO, an asteroid which was predicted to impact on Earth and burned up in its atmosphere, as well as several more objects that collided with Earth's atmosphere in 2019 which weren't discovered in advance, but were observed visually or recorded by sensors designed to detect detonation of nuclear devices.
Rows highlighted red indicate objects which were not discovered until after closest approach
Rows highlighted yellow indicate objects discovered less than 24 hours before closest approach
Rows highlighted green indicate objects discovered more than one week before closest approach
Rows highlighted turquoise indicate objects discovered more than 7 weeks before closest approach
Rows highlighted blue indicate objects discovered more than one year before closest approach (i.e. objects successfully cataloged on a previous orbit, rather than being detected during final approach)
| Date of closest approach | Date discovered | Object | Nominal geocentric distance (AU) | Nominal geocentric distance (LD) | Size (m) (approximate) | (H) (abs. mag.) | Closer approach to Moon | Refs |
| 2019-01-08 | 2019-01-08 | 2019 AS5 | 0.000101 AU (15,100 km; 9,400 mi) | 0.039 | 0.92–2.1 | 32.3 | — | data · 2019 AS$_5$ |
| 2019-01-12 | 2019-01-11 | 2019 AE$_9$ | 0.000666 AU (99,600 km; 61,900 mi) | 0.259 | 9.7–22 | 27.2 | — | data · 2019 AE$_9$ |
| 2019-01-16 | 2019-01-17 | 2019 BO | 0.000459 AU (68,700 km; 42,700 mi) | 0.179 | 6.4–14 | 28.1 | — | data · 2019 BO |
| 2019-01-16 | 2020-02-15 | 2020 CD3 | 0.00108 AU (162,000 km; 100,000 mi) | 0.422 | 1.2–2.7 | 31.7 | — | data · 2020 CD$_3$ |
| 2019-01-24 | 2019-01-25 | 2019 BV$_1$ | 0.000904 AU (135,200 km; 84,000 mi) | 0.352 | 4.6–10 | 28.8 | — | data · 2019 BV$_1$ |
| 2019-01-27 | 2019-01-28 | 2019 BZ3 | 0.000322 AU (48,200 km; 29,900 mi) | 0.125 | 4.7–10 | 28.8 | — | data · 2019 BZ$_3$ |
| 2019-02-11 | 2019-02-12 | 2019 CN$_5$ | 0.000793 AU (118,600 km; 73,700 mi) | 0.309 | 7–16 | 27.9 | — | data · 2019 CN$_5$ |
| 2019-02-26 | 2019-02-28 | 2019 DG$_2$ | 0.00158 AU (236,000 km; 147,000 mi) | 0.614 | 5.3–12 | 28.5 | — | data · 2019 DG$_2$ |
| 2019-02-26 | 2019-02-26 | 2019 DF | 0.00116 AU (174,000 km; 108,000 mi) | 0.450 | 2.9–6.5 | 29.8 | — | data · 2019 DF |
| 2019-03-01 | 2019-03-01 | 2019 EH$_1$ | 0.000157 AU (23,500 km; 14,600 mi) | 0.061 | 2.5–5.6 | 30.1 | — | data · 2019 EH$_1$ |
| 2019-03-13 | 2019-03-14 | 2019 EN$_2$ | 0.00221 AU (331,000 km; 205,000 mi) | 0.861 | 8–18 | 27.6 | — | data · 2019 EN$_2$ |
| 2019-03-16 | 2019-03-16 | 2019 FA | 0.00154 AU (230,000 km; 143,000 mi) | 0.796 | 4.7–11 | 28.8 | — | data · 2019 FA |
| 2019-03-22 | 2019-03-09 | 2019 EA$_2$ | 0.00205 AU (307,000 km; 191,000 mi) | 0.796 | 18–41 | 25.8 | — | data · 2019 EA$_2$ |
| 2019-03-23 | 2019-03-25 | 2019 FQ | 0.00220 AU (329,000 km; 205,000 mi) | 0.858 | 10–23 | 27.1 | — | data · 2019 FQ$_2$ |
| 2019-03-28 | 2019-03-29 | 2019 FC$_1$ | 0.000690 AU (103,200 km; 64,100 mi) | 0.268 | 20–45 | 25.6 | ? | data · 2019 FC$_1$ |
| 2019-03-31 | 2019-03-29 | 2019 FV$_1$ | 0.00223 AU (334,000 km; 207,000 mi) | 0.869 | 4.4–9.9 | 28.9 | ? | data · 2019 FV$_1$ |
| 2019-03-31 | 2019-04-03 | 2019 GP$_{21}$ | 0.00238 AU (356,000 km; 221,000 mi) | 0.927 | 2.9–6.5 | 29.8 | ? | data · 2019 GP$_{21}$ |
| 2019-04-12 | 2019-04-09 | 2019 GN$_{20}$ | 0.00253 AU (378,000 km; 235,000 mi) | 0.983 | 13–30 | 26.5 | ? | data · 2019 GN$_{20}$ |
| 2019-04-18 | 2019-04-09 | 2019 GC6 | 0.00146 AU (218,000 km; 136,000 mi) | 0.570 | 13–30 | 26.5 | ? | data · 2019 GC$_6$ |
| 2019-04-20 | 2019-04-21 | 2019 HE | 0.00150 AU (224,000 km; 139,000 mi) | 0.582 | 12–27 | 26.7 | ? | data · 2019 HE |
| 2019-04-30 | 2019-05-01 | 2019 JK | 0.00178 AU (266,000 km; 165,000 mi) | 0.694 | 6.7–15 | 28.0 | ? | data · 2019 JK |
| 2019-05-02 | 2019-05-03 | 2019 JX$_1$ | 0.00120 AU (180,000 km; 112,000 mi) | 0.467 | 4.0–9.0 | 29.1 | ? | data · 2019 JX$_1$ |
| 2019-05-05 | 2019-05-06 | 2019 JY$_2$ | 0.000978 AU (146,300 km; 90,900 mi) | 0.380 | 3.2–7.1 | 29.6 | ? | data · 2019 JY$_2$ |
| 2019-05-13 | 2019-05-13 | 2019 JP$_{144}$ | 0.00227 AU (340,000 km; 211,000 mi) | 0.885 | 8.6–19 | 27.4 | ? | data · 2019 JP$_{144}$ |
| 2019-05-16 | 2019-05-14 | 2019 JH$_7$ | 0.000478 AU (71,500 km; 44,400 mi) | 0.186 | 3.2–7.1 | 29.6 | ? | data · 2019 JH$_7$ |
| 2019-05-28 | 2019-05-26 | 2019 KT | 0.00217 AU (325,000 km; 202,000 mi) | 0.846 | 13–28 | 26.6 | ? | data · 2019 KT |
| 2019-06-05 | 2019-06-06 | 2019 LD$_{42}$ | 0.000911 AU (136,300 km; 84,700 mi) | 0.355 | 4.8–11 | 28.7 | ? | data · 2019 LD$_{42}$ |
| 2019-06-06 | 2019-06-06 | 2019 LY$_4$ | 0.000559 AU (83,600 km; 52,000 mi) | 0.218 | 7.3–16 | 27.8 | ? | data · 2019 LY$_4$ |
| 2019-06-08 | 2019-06-02 | 2019 LW$_4$ | 0.00166 AU (248,000 km; 154,000 mi) | 0.645 | 9.2–21 | 27.3 | ? | data · 2019 LW$_4$ |
| 2019-07-02 | 2019-07-04 | 2019 NK$_1$ | 0.00177 AU (265,000 km; 165,000 mi) | 0.690 | 2.8–6.2 | 29.9 | ? | data · 2019 NK$_1$ |
| 2019-07-09 | 2019-06-29 | 2019 MB$_4$ | 0.00211 AU (316,000 km; 196,000 mi) | 0.820 | 17–38 | 26.0 | ? | data · 2019 MB$_4$ |
| 2019-07-09 | 2019-07-09 | 2019 NF$_7$ | 0.00253 AU (378,000 km; 235,000 mi) | 0.984 | 6.4–14 | 28.1 | ? | data · 2019 NF$_7$ |
| 2019-07-10 | 2019-07-07 | 2019 NN$_3$ | 0.00214 AU (320,000 km; 199,000 mi) | 0.833 | 31–68 | 24.7 | ? | data · 2019 NN$_3$ |
| 2019-07-24 | 2019-07-21 | 2019 OD | 0.00239 AU (358,000 km; 222,000 mi) | 0.931 | 56–120 | 23.4 | ? | data · 2019 OD |
| 2019-07-25 | 2019-07-24 | 2019 OK | 0.000477 AU (71,400 km; 44,300 mi) | 0.186 | 58–130 | 23.3 | ? | data · 2019 OK |
| 2019-07-28 | 2019-07-27 | 2019 OD$_3$ | 0.00126 AU (188,000 km; 117,000 mi) | 0.489 | 11–25 | 26.9 | ? | data · 2019 OD$_3$ |
| 2019-07-29 | 2019-07-30 | 2019 ON$_3$ | 0.00143 AU (214,000 km; 133,000 mi) | 0.555 | 7.2–16 | 27.8 | ? | data · 2019 ON$_3$ |
| 2019-08-20 | 2019-08-22 | 2019 QB$_1$ | 0.000827 AU (123,700 km; 76,900 mi) | 0.322 | 8.4–19 | 27.5 | ? | data · 2019 QB$_1$ |
| 2019-08-20 | 2019-08-21 | 2019 QH$_2$ | 0.000330 AU (49,400 km; 30,700 mi) | 0.128 | 2.2–4.9 | 30.4 | ? | data · 2019 QH$_2$ |
| 2019-08-22 | 2019-08-21 | 2019 QD | 0.00200 AU (299,000 km; 186,000 mi) | 0.780 | 4.6–10 | 28.8 | ? | data · 2019 QD |
| 2019-08-26 | 2019-08-28 | 2019 QR$_8$ | 0.00207 AU (310,000 km; 192,000 mi) | 0.804 | 7.0–16 | 27.9 | ? | data · 2019 QR$_8$ |
| 2019-08-26 | 2019-08-27 | 2019 QQ$_3$ | 0.000636 AU (95,100 km; 59,100 mi) | 0.248 | 3.7–8.2 | 29.3 | ? | data · 2019 QQ$_3$ |
| 2019-09-02 | 2019-09-03 | 2019 RQ | 0.000739 AU (110,600 km; 68,700 mi) | 0.287 | 2.0–4.5 | 30.6 | ? | data · 2019 RQ |
| 2019-09-05 | 2019-09-06 | 2019 RP$_1$ | 0.000253 AU (37,800 km; 23,500 mi) | 0.099 | 7.0–16 | 27.9 | ? | data · 2019 RP$_1$ |
| 2019-09-07 | 2019-09-05 | 2019 RC$_1$ | 0.00123 AU (184,000 km; 114,000 mi) | 0.479 | 4.4–9.9 | 28.9 | ? | data · 2019 RC$_1$ |
| 2019-09-16 | 2019-09-19 | 2019 SJ | 0.00163 AU (244,000 km; 152,000 mi) | 0.636 | 8.0–18 | 27.6 | ? | data · 2019 SJ |
| 2019-09-21 | 2019-09-22 | 2019 SU$_2$ | 0.000481 AU (72,000 km; 44,700 mi) | 0.187 | 2.5–5.7 | 30.1 | ? | data · 2019 SU$_2$ |
| 2019-09-21 | 2019-09-20 | 2019 SD$_1$ | 0.00187 AU (280,000 km; 174,000 mi) | 0.728 | 5.3–12 | 28.5 | ? | data · 2019 SD$_1$ |
| 2019-09-21 | 2019-09-22 | 2019 SS$_2$ | 0.000768 AU (114,900 km; 71,400 mi) | 0.299 | 1.9–4.3 | 30.7 | ? | data · 2019 SS$_2$ |
| 2019-09-22 | 2019-09-25 | 2019 SS$_3$ | 0.00188 AU (281,000 km; 175,000 mi) | 0.731 | 15–34 | 26.2 | ? | data · 2019 SS$_3$ |
| 2019-09-28 | 2019-09-30 | 2019 SX$_8$ | 0.00255 AU (381,000 km; 237,000 mi) | 0.993 | 4.4–9.9 | 28.9 | ? | data · 2019 SX$_8$ |
| 2019-09-28 | 2019-10-01 | 2019 TE | 0.00238 AU (356,000 km; 221,000 mi) | 0.927 | 6.7–15 | 28.0 | ? | data · 2019 TE |
| 2019-09-29 | 2019-10-01 | 2019 TD | 0.000869 AU (130,000 km; 80,800 mi) | 0.338 | 3.8–8.6 | 29.2 | ? | data · 2019 TD |
| 2019-10-01 | 2019-09-30 | 2019 SM$_8$ | 0.00106 AU (159,000 km; 99,000 mi) | 0.414 | 3.8–8.6 | 29.2 | ? | data · 2019 SM$_8$ |
| 2019-10-03 | 2019-09-22 | 2019 SP$_3$ | 0.00249 AU (372,000 km; 231,000 mi) | 0.967 | 15–34 | 26.2 | ? | data · 2019 SP$_3$ |
| 2019-10-05 | 2019-10-06 | 2019 TN$_5$ | 0.000827 AU (123,700 km; 76,900 mi) | 0.322 | 5.8–13 | 28.3 | ? | data · 2019 TN$_5$ |
| 2019-10-18 | 2019-10-19 | 2019 UU$_1$ | 0.00151 AU (226,000 km; 140,000 mi) | 0.588 | 2.2–4.9 | 30.4 | ? | data · 2019 UU$_1$ |
| 2019-10-18 | 2019-10-19 | 2019 UG | 0.00215 AU (322,000 km; 200,000 mi) | 0.838 | 6.4–14 | 28.1 | ? | data · 2019 UG |
| 2019-10-19 | 2019-10-22 | 2019 UL$_3$ | 0.00199 AU (298,000 km; 185,000 mi) | 0.774 | 5.8–13 | 28.3 | ? | data · 2019 UL$_3$ |
| 2019-10-23 | 2019-10-25 | 2019 UN$_8$ | 0.00241 AU (361,000 km; 224,000 mi) | 0.938 | 3.1–6.8 | 29.7 | ? | data · 2019 UN$_8$ |
| 2019-10-25 | 2019-10-26 | 2019 UO$_8$ | 0.00105 AU (157,000 km; 98,000 mi) | 0.409 | 3.7–8.2 | 29.3 | ? | data · 2019 UO$_8$ |
| 2019-10-26 | 2019-10-29 | 2019 UX$_{12}$ | 0.00256 AU (383,000 km; 238,000 mi) | 0.995 | 4.8–11 | 28.7 | ? | data · 2019 UX$_{12}$ |
| 2019-10-27 | 2019-10-28 | 2019 UD$_{10}$ | 0.00112 AU (168,000 km; 104,000 mi) | 0.436 | 6.1–14 | 28.2 | ? | data · 2019 UD$_{10}$ |
| 2019-10-29 | 2019-10-26 | 2019 UB$_8$ (AKA 2019 US$_8$) | 0.00127 AU (190,000 km; 118,000 mi) | 0.496 | 4.2–9.4 | 29.0 | ? | data · 2019 UB$_8$ |
| 2019-10-31 | 2019-10-31 | 2019 UN13 | 0.0000843 AU (12,610 km; 7,840 mi) | 0.033 | 1.0–2.4 | 32.0 | ? | data · 2019 UN$_{13}$ |
| 2019-11-01 | 2019-10-29 | 2019 UG$_{11}$ | 0.00140 AU (209,000 km; 130,000 mi) | 0.546 | 12–26 | 26.8 | ? | data · 2019 UG$_{11}$ |
| 2019-11-01 | 2019-11-04 | 2019 VC$_{37}$ | 0.00157 AU (235,000 km; 146,000 mi) | 0.613 | 3.1–6.9 | 29.7 | ? | data · 2019 VC$_{37}$ |
| 2019-11-02 | 2019-11-01 | 2019 VA | 0.000711 AU (106,400 km; 66,100 mi) | 0.277 | 5.6–12 | 28.4 | ? | data · 2019 VA |
| 2019-11-04 | 2019-11-01 | 2019 VD | 0.00117 AU (175,000 km; 109,000 mi) | 0.453 | 8.8–20 | 27.4 | ? | data · 2019 VD |
| 2019-11-04 | 2019-11-03 | 2019 VR | 0.000912 AU (136,400 km; 84,800 mi) | 0.355 | 6.4–14 | 28.1 | ? | data · 2019 VR |
| 2019-11-06 | 2019-11-06 | 2019 VS$_4$ | 0.000931 AU (139,300 km; 86,500 mi) | 0.362 | 9.2–21 | 27.3 | ? | data · 2019 VS$_4$ |
| 2019-11-09 | 2019-11-08 | 2019 VB$_5$ | 0.000975 AU (145,900 km; 90,600 mi) | 0.379 | 1.2–2.7 | 31.7 | ? | data · 2019 VB$_5$ |
| 2019-11-09 | 2019-11-05 | 2019 VF$_5$ | 0.00127 AU (190,000 km; 118,000 mi) | 0.495 | 8.4–19 | 27.5 | ? | data · 2019 VF$_5$ |
| 2019-11-19 | 2019-11-18 | 2019 WH | 0.000570 AU (85,300 km; 53,000 mi) | 0.222 | 15–34 | 26.2 | ? | data · 2019 WH |
| 2019-11-19 | 2019-11-24 | 2019 WV$_1$ | 0.00185 AU (277,000 km; 172,000 mi) | 0.721 | 6.7–15 | 28.0 | ? | data · 2019 WV$_1$ |
| 2019-11-23 | 2019-11-24 | 2019 WG$_2$ | 0.00121 AU (181,000 km; 112,000 mi) | 0.471 | 27–61 | 24.9 | ? | data · 2019 WG$_2$ |
| 2019-11-30 | 2019-11-29 | 2019 WJ$_4$ | 0.00219 AU (328,000 km; 204,000 mi) | 0.853 | 5.6–12 | 28.4 | ? | data · 2019 WJ$_4$ |
| 2019-12-18 | 2019-12-17 | 2019 YB | 0.00113 AU (169,000 km; 105,000 mi) | 0.440 | 3.1–6.8 | 29.7 | ? | data · 2019 YB |
| 2019-12-18 | 2019-12-19 | 2019 YS | 0.000436 AU (65,200 km; 40,500 mi) | 0.170 | 1.3–3.0 | 31.5 | ? | data · 2019 YS |
| 2019-12-23 | 2019-12-24 | 2019 YU$_2$ | 0.000658 AU (98,400 km; 61,200 mi) | 0.256 | 8.8–20 | 27.4 | ? | data · 2019 YU$_2$ |
| 2019-12-25 | 2019-12-30 | 2019 YV$_4$ | 0.00251 AU (375,000 km; 233,000 mi) | 0.977 | 9.2–21 | 27.3 | ? | data · 2019 YV$_4$ |
In addition to the confirmed asteroids on the above list, which feature in the CNEOS close approach database, there have been well-observed unconfirmed or confirmed but poorly observed objects with a 50% or greater chance of passing within 1 LD of the Earth, which are listed separately below.
| Date of closest approach | Date discovered | Object | Nominal geocentric distance (AU) | Nominal geocentric distance (LD) | Size (m) (approximate) | (H) (abs. mag.) | Closer approach to Moon | Refs |
| 2019-01-12 | 2019-01-16 | P10LI6O | 0.0023 AU (340,000 km; 210,000 mi) | 0.90 | 3–18 | 28.6 | ? | Pseudo-MPEC CNEOS Distance (H) (T) |
| 2019-01-17 | 2019-01-16 | P10LGkb | 0.000225 AU (33,700 km; 20,900 mi) | 0.088 | 1–3 | 31.6 | — | Pseudo-MPEC CNEOS Distance (H) (T) |
| 2019-01-27 | 2019-01-28 | C04U1L2 | 0.0015 AU (220,000 km; 140,000 mi) | 0.60 | 2–12 | 29.4 | ? | Pseudo-MPEC CNEOS Distance (H) (T) |
| 2019-02-09 | 2019-02-09 | C03CZA1 | 0.00175 AU (262,000 km; 163,000 mi) | 0.68 | 9–30 | 26.9 | — | Pseudo-MPEC CNEOS Distance (H) (T) |
| 2019-03-04 | 2019-03-05 | C09Q4H2 | 0.000178 AU (26,600 km; 16,500 mi) | 0.069 | 1–3 | 31.9 | — | Pseudo-MPEC CNEOS Distance (T) |
| 2019-03-04 | 2019-03-04 | C04H931 | 0.0014 AU (210,000 km; 130,000 mi) | 0.54 | 5–19 | 28.0 | ? | Pseudo-MPEC CNEOS Distance (H) (T) |
| 2019-03-06 | 2019-03-07 | C0A1UN2 | 0.0000526 AU (7,870 km; 4,890 mi) | 0.020 | 0.4–1.3 | 33.5 | — | |
| 2019-04-06 | 2019-04-05 | A10cQ6k | 0.000989 AU (148,000 km; 91,900 mi) | 0.39 | 6.7–22 | 27.5 | — | |
| 2019-05-01 | 2019-05-01 | C093PF1 | 0.000588 AU (88,000 km; 54,700 mi) | 0.23 | 1.9–6.2 | 30.2 | — | |
| 2019-05-03 | 2019-05-04 | C0M3DQ2 | 0.000879 AU (131,500 km; 81,700 mi) | 0.34 | 5.1–16 | 28.1 | — | |

### Warning times by size

This sub-section visualises the warning times of the close approaches listed in the table of confirmed close approaches, depending on the size of the asteroid. The sizes of the charts show the relative sizes of the asteroids to scale. For comparison, the approximate size of a person is also shown. This is based the absolute magnitude of each asteroid, an approximate measure of size based on brightness.
Absolute magnitude H ≥ 30 (smallest)
(size of a person for comparison)
Absolute magnitude 30 > H ≥ 29
Absolute magnitude 29 > H ≥ 28
Absolute magnitude 28 > H ≥ 27
Absolute magnitude 27 > H ≥ 26
Absolute magnitude 26 > H ≥ 25
Absolute magnitude 25 > H (largest)
* After closest approach: 1 (20.0%)
* < 24 hours before: 0 (0.0%)
* up to 7 days before: 3 (60.0%)
* > one week before: 1 (20.0%)
* > 7 weeks before: 0 (0.0%)
* > one year before: 0 (0.0%)