SPX-507       25 January 1996

                       SPACEWARN BULLETIN 507
A publication of NASA NSSDC/WDC-A-R&S as the WWAS for IUWDS/COSPAR 
    (All information in this publication was received between
	        25 December 1995 and 24 January 1996.)

A.  List of New International Designations and Launch Dates (UT). (USSPACECOM
Catalog numbers are in parentheses.)
1996-004A (23773) COSMOS 2327    16 Jan 1996
1996-003A (23768) KOREASAT 2     14 Jan
1996-002B (23765) MEASAT 1       12 Jan
1996-002A (23764) PAS 3R         12 Jan
1996-001B (23763) OAST FLYER     11 Jan
1996-001A (23762) STS 72         11 Jan
1995-074A (23757) XTE            30 Dec 1995
1995-073A (23754) ECHO STAR 1    28 Dec
1995-072B (23752) SKIPPER        28 Dec
1995-072A (23751) IRS 1-C        28 Dec

B.  Text of Launch Announcements.

1996-004A  COSMOS 2327 is a Russian military spacecraft that was launched 
           from Plesetsk cosmodrome by a Cosmos-3M rocket at 15:34 UT. Initial 
           orbital parameters were period 104.9 min, apogee 1,034 km, perigee 
           974 km, and inclination 83 deg.

1996-003A KOREASAT 2, also known as MUGUNGHWA 2, is a South Korean 
          geostationary communications spacecraft that was launched from Cape
          Canaveral by a Delta 2 rocket at 11:10 UT. It will be parked at
          116-E longitude over Borneo island to provide broadcasting and
          telecommunications to South Korea, beginning July 96.  

1996-002B  MEASAT 1 is a Malaysian geostationary communications spacecraft 
           that was launched by an Ariane 44L rocket from Kourou in French 
           Guiana at 23:10 UT. After parking at 91.5-E longitude, the 
           1,450 kg spacecraft will provide communications and direct-to-home 
           television services to Malaysia and neighboring countries through 
           its four Ku-bands and 12 C-band transponders.

1996-002A  PAS 3R, also known as PANAMSAT 3R, is an American geostationary 
           communications spacecraft that was launched by an Ariane 44L rocket 
           from Kourou in French Guiana at 23:10 UT. After parking at 43.0-W 
           longitude, the 2,900 kg spacecraft will provide TV and communication
           services to the north- and south American countries through its 16 
           C-band transponders.

1996-001B  OAST FLYER ( NASA's Office of Aeronautical and Space Technology 
           flier) is an American minispacecraft that was released from
           the shuttle STS 72. It carried four experimental packages: to measure
           spacecraft contamination levels at low-Earth orbits, to test GPS 
           equipments, to test amateur radio gears, and finally to determine the
           effect of solar radiation on the explosives aboard satellite systems.
           Initial orbital parameters were period 90.6 min, apogee 310 km, 
           perigee 302 km, and inclination 28.4 deg.

1996-001A  STS 72 is an American shuttle spacecraft that was launched from 
           Cape Canaveral at 09:41 UT. It carried, released, and retrieved
           the OAST FLYER. It also retrieved a long orbiting Japanese reusable 
           spacecraft, SFU that had amassed astronomical data and material 
           science products since March 1995. Initial orbital parameters were 
           period 91.1 min, apogee 470 km, perigee 185 km, and inclination 
           28.4 deg.

1995-074A  XTE (X-ray Timing Explorer) is an American astronomy spacecraft that
           was launched by a Delta-2 rocket from Cape Canaveral AFS at 13:48 
           UT. The 3,000 kg spacecraft carries three major instruments with 
           large collecting areas, wide bandwidths, and high resolution. The PCA
           (Proportional Counter Array, of NASA/Goddard) consists of five
           xenon counters of area 7,000 sq-cm, field-of-view 1.0 deg, bandwidth
           2-60 keV, resolution 1.0 microsecond, and sensitivity 0.1 milliCrab;
           the HEXTE (High Energy X-ray Timing Experiment of UC-San Diego) 
           contains eight sodium/cesium iodide crystals of area 1,600 sq-cm, 
           field-of-view 1.0 deg, bandwidth 20-200 keV, resolution 10 
           microsecond, and sensitivity 1.0 milliCrab; the ASM (All Sky 
           Monitor of MIT) is an array of three xenon proportional counters of 
           area 90 sq-cm, field-of-view 6 deg x 90 deg, bandwidth 2-10 keV, 
           resolution 1.5 hr, and sensitivity 20 milliCrab. One Crab is the 
           intensity of x-ray emission from the Crab nebula. Unlike the 
           telescopes PCA and HEXTE, the ASM scans most of the sky every 1.5 
           hr in order to monitor about 75 bright sources; the positional 
           resolution of ASM is about 0.05 deg x 0.25 deg. (Problems with the 
           scanning mechanism are now being addressed.) Initial orbital 
           parameters were period 96.1 min, apogee 583 km, perigee 565 km, and 
           inclination 22.9 deg. Status of the experiments and some data may be
           accessed through the URL, 
                http://heasarc.gsfc.nasa.gov/docs/xte/xte_1st.html

1995-073A  ECHOSTAR 1 is an American geostationary communications spacecraft 
           that was launched by a Long March 2E rocket from Xichang Center in 
           Sichuan province, PRC at 11:51 UT. The 3,288 kg spacecraft carries 
           16 Ku-band transponders to enable direct broadcast communications 
           and television channels through 0.5 meter dishes on the ground in 
           the American continents.

1995-072B  SKIPPER is a small American science spacecraft that was launched 
           by a Molniya-M launcher from Baykonur cosmodrome at 06:45 UT. It 
           has been reported to be a "sub-satellite" (of IRS 1-C), but no 
           details are currently available on the Utah State University 
           instrumentation package. Initial orbital parameters were period 
           101.0 min, apogee 813 km, perigee 803 km, and inclination 98.6 deg.

1995-072A  IRS 1-C (Indian Remote Sensing satellite) is the third of the Indian 
           natural resource imaging satellites and was launched by a Molniya-M 
           launcher from Baykonur cosmodrome at 06:45 UT. The 1,250 kg 
           spacecraft carries three instruments: PAN (PANchromatic camera of 
           6-meter resolution), multispectral LISS-3 (Linear Imaging 
           Self-Scanner), and WIFS (WIde Field Sensor). Images from regions 
           other than India will be downlinked and distributed through a 
           commercial entity in USA. Initial parameters of the Sun-synchronous 
           orbit were period 101.2 min, apogee 818 km, perigee 816 km, and 
           inclination 98.6 deg.

C. Spacecraft Particularly Suited for International Participation.

   1. Spacecraft with essentially continuous radio beacons on frequencies less
than 150 MHz, or higher frequencies if especially suited for ionospheric or
geodetic studies.  (NNSS denotes U.S. Navy Navigational Satellite System; an
asterisk [*] indicates updated/new information since the last issue. Updates or
corrections to the list are possible only with information from the user 
community.) 
            	      	
    THIS SECTION HAS NOT RECEIVED ANY USER INPUTS/UPDATES FOR A YEAR. THE 
     CONTENT REMAINS THE SAME AS IN SPX-504. THE SECTION WILL BE REVIVED 
      FROM TIME TO TIME WHEN A SIGNIFICANT VOLUME OF UPDATES WOULD BE 
                   AVAILABLE FROM THE USER COMMUNITY.

                               HOWEVER,
Geoff E. Perry, MBE, of the Kettering Group in Cornwall, England, has 
kindly provided the following additions and revisions to the list in SPX-504.

1991-019A (21152)         1 January 1996               Plane 2
NADEZHDA 3                150.00 MHz
                          400.00 MHz
                          Inclination: 82.926 deg   
1991-081A (21796)         1 January 1996               Plane 4
COSMOS 2173               149.97 MHz
                          399.92 MHz
                          Inclination: 82.955 deg
1992-073A (22207)         1 January 1996               Plane 3
COSMOS 2218               149.94 MHz
                          399.84 MHz
                          Inclination: 82.921 deg
1993-008A (22487)         1 January 1996               Plane 5
COSMOS 2233               150.03 MHz
                          400.08 MHz
                          Inclination: 82.945 deg
1993-070A (22888)         1 January 1996               Plane 1
COSMOS 2266               149.97 MHz                   Inactive, and
                          399.92 MHz                   replaced by
                          Inclination: 82.950 deg      COSMOS 2327
1994-024A (23092)         1 January 1996               Plane 6
COSMOS 2279               149.94 MHz
                          399.84 MHz
                          Inclination: 82.948 deg
1994-041A (23179)         1 January 1996               Plane 14
NADEZHDA 4                150.00 MHz
                          400.00 MHz
                          Inclination: 82.944 deg
1995-002A (23463)         1 January 1996               Plane 13
TSIKADA                   150.00 MHz
                          400.00 MHz
                          Inclination: 82.925 deg
1995-012A (23526)         1 January 1996               Plane 2
COSMOS 2310               149.91 MHz
                          399.76 MHz
                          Inclination: 82.939 deg
1995-032A (23603)         1 January 1996               Plane 11
COSMOS 2315               150.00 MHz
                          400.00 MHz
                          Inclination: 82.905 deg
1996-004A (23773)         21 January 1996              Plane 1
COSMOS 2327               149.97 MHz
                          300.02 MHz
                          Inclination: 82.981 deg

    2. Global Positioning System satellites useful for navigational purposes and
geodetic studies.  ("NNN" denotes no national name.  SPACEWARN Bulletin
appreciates suggestions to update this list. An asterisk [*] denotes changes in
this issue.)

        High precision (< 20 cm), GPS constellation tracking data obtained from
the network of about 80 dedicated global stations that are of interest to
geodetic study may be obtained through the following services provided
by the International Association of Geodesy (IGS). 

                FTP:    igscb.jpl.nasa.gov  [directory /igscb]
                     WWW:    http://igscb.jpl.nasa.gov/
                      E-mail: igscb@cobra.jpl.nasa.gov

Designations,          Epoch, Frequency, 
National Name          and Orbit Information	Remarks

1984-097A (15271)      24 November 1995        [Also known as NAVSTAR 10 
USA 5                  1575.42 MHz		and GPS 10. PRN: 12.]
                       1227.60 MHz
                       Inclination: 62.1 deg 
1985-093A (16129)      24 November 1995	       [Also known as NAVSTAR 11 
USA 10                 1575.42 MHz		and GPS 11. PRN: 3.]
                       1227.60 MHz           	DEACTIVATED ON April 13, 94.
                       Inclination: 65.2 deg 
1989-013A (19802)      24 November 1995	       [Also known as GPS 2-1 
USA 35                 1575.42 MHz  		(Second Generation Global
                       1227.60 MHz 		Positioning Satellite) and
                       Inclination: 55.3 deg	NAVSTAR 14. PRN: 14.] 
1989-044A (20061)      24 November 1995	       [Also known as GPS 2-2 and 
USA 38                 1575.42 MHz		NAVSTAR 13. PRN: 2.]
                       1227.60 MHz
                       Inclination: 54.3 deg 
1989-064A (20185)      24 November 1995	       [Also known as GPS 2-3 and 
USA 42                 1575.42 MHz 		NAVSTAR 16. PRN: 16.]
                       1227.60 MHz
                       Inclination: 55.0 deg 
1989-085A (20302)      24 November, 1995       [Also known as GPS 2-4 and 
USA 47                 1575.42 MHz 		NAVSTAR 19. PRN: 19.]
                       1227.60 MHz
                       Inclination: 53.3 deg 
1989-097A (20361)      24 November 1995        [Also known as GPS 2-5 and 
USA 49                 1575.42 MHz		NAVSTAR 17. PRN: 17.]
                       1227.60 MHz
                       Inclination: 55.9 deg 
1990-008A (20452)      24 November 1995        [Also known as GPS 2-6 
USA 50                 1575.42 MHz		and NAVSTAR 18. PRN: 18.]
                       1227.60 MHz
                       Inclination: 54.0 deg 
1990-025A (20533)      24 November 1995	       [Also known as GPS 2-7 and 
USA 54                 1575.42 MHz		NAVSTAR 20. PRN: 20.]
                       1227.60 MHz
                       Inclination: 54.7 deg 
1990-068A (20724)      24 November 1995	       [Also known as GPS 2-8 
USA 63                 1575.42 MHz		and NAVSTAR 21. PRN: 21.]
                       1227.60 MHz
                       Inclination: 54.9 deg 
1990-088A (20830)      24 November 1995        [Also known as GPS 2-9 
USA 64                 1575.42 MHz		and NAVSTAR 15. PRN: 15.]
                       1227.60 MHz
                       Inclination: 55.8 deg 
1990-103A (20959)      24 November 1995        [Also known as GPS 2-10, 
USA 66                 1575.42 MHz		GPS 2A-1, and NAVSTAR 23.
                       1227.60 MHz              PRN: 23.]
                       Inclination: 55.1 deg 
1991-047A (21552)      24 November 1995        [Also known as GPS 2-11, 
USA 71                 1575.42 MHz		GPS 2A-2, and NAVSTAR 24.
                       1227.60 MHz		PRN: 24.]
                       Inclination: 56.1 deg 
1992-009A (21890)      24 November 1995	       [Also known as GPS 2-12, 
USA 79                 1575.42 MHz		GPS 2A-3, and NAVSTAR 25.
                       1227.60 MHz		PRN: 25.]
                       Inclination: 53.9 deg 
1992-019A (21930)      24 November 1995	       [Also known as GPS 2-13, 
USA 80                 1575.42 MHz		GPS 2A-4, and NAVSTAR 28.
                       1227.60 MHz		PRN: 28.]
                       Inclination: 55.7 deg 
1992-039A (22014)      24 November 1995        [Also known as GPS 2-14, 
USA 83                 1575.42 MHz		GPS 2A-5, and NAVSTAR 26.
                       1227.60 MHz		PRN: 26.]
                       Inclination: 54.8 deg 
1992-058A (22108)      24 November 1995	       [Also known as GPS 2-15, 
USA 84                 1575.42 MHz		GPS 2A-6,and NAVSTAR 27.
                       1227.60 MHz		PRN: 27.]
                       Inclination: 54.1 deg 
1992-079A (22231)      24 November 1995        [Also known as GPS 2-16, 
USA 85                 1575.42 MHz		GPS 2A-7, and NAVSTAR 32.
                       1227.60 MHz		PRN: 1.]
                       Inclination: 54.7 deg 
1992-089A (22275)      24 November 1995        [Also known as GPS 2-17, 
USA 87                 1575.42 MHz		GPS 2A-8,and NAVSTAR 29.
                       1227.60 MHz		PRN: 29.]
                       Inclination: 54.6 deg 
1993-007A (22446)      24 November 1995	       [Also known as GPS 2-18, 
USA 88                 1575.42 MHz		GPS 2A-9, and NAVSTAR 22.
                       1227.60 MHz		PRN: 22.]
                       Inclination: 54.3 deg 
1993-017A (22581)      24 November 1995	       [Also known as GPS 2-19, 
USA 90                 1575.42 MHz		GPS 2A-10, and NAVSTAR 31.
                       1227.60 MHz		PRN: 31.]
                       Inclination: 55.2 deg 
1993-032A (22657)      24 November 1995	       [Also known as GPS 2-20, 
USA 91                 1575.42 MHz		GPS 2A-11, and NAVSTAR 37.
                       1227.60 MHz		PRN: 7.]
                       Inclination: 55.2 deg 
1993-042A (22700)      24 November 1995	       [Also known as GPS 2-21, 
USA 92                 1575.42 MHz		GPS 2A-12, and NAVSTAR 39.
                       1227.60 MHz		PRN: 9.]
                       Inclination: 54.3 deg 
1993-054A (22779)      24 November 1995	       [Also known as GPS 2-22, 
USA 94                 1575.42 MHz 		GPS 2A-13, and NAVSTAR 35.
                       1227.60 MHz		PRN: 5.]
                       Inclination: 54.5 deg 
1993-068A (22877)      24 November 1995        [Also known as GPS 2-23, 
USA 96                 1575.42 MHz		GPS 2A-14,and NAVSTAR 34.
                       1227.60 MHz		PRN: 4.]
                       Inclination: 55.5 deg 
1994-016A (23027)      24 November 1995        [Also known as GPS 2-24, 
USA 100                1575.42 MHz              GPS 2A-15,and NAVSTAR 36.
                       1227.60 MHz              PRN: 6.]
                       Inclination: 55.1 deg

The GPS 2-NN series orbit in six distinct planes that are about 60 deg apart. 
Each plane has four "slots." Following are the 2-NN members in the planes/
slots. The RAAN decreases or increases by about 1.0 deg each month; below are 
their approximate RAAN longitudes in November 95.

PLANE    RAAN OF PLANE     SLOT-1     SLOT-2      SLOT-3      SLOT-4

  A           235           2-21       2-12        2-15        2-04
  B           296           2-18       2-07        2-02        2-22
  C           357           2-24       2-13        2-19        2-20
  D            62           2-11       2-09        2-05        2-23
  E           119           2-01       2-08        2-03        2-10
  F           177           2-16       2-14        2-06        2-17

    3. Russian Global Navigational (Positioning) Spacecraft, GLONASS
constellation. (SPACEWARN requests updates/additions from readers to this list.
Entries marked "*" are updates or additions to the list.) 

All GLONASS spacecraft are in the general COSMOS series. The COSMOS numbers
(nnnn) invoked by USSPACECOM have often differed from the numbers (NNNN) 
associated in Russia; when different, the USSPACECOM COSMOS numbers are shown 
in parentheses. The corresponding GLONASS numbers are Russian numbers, followed 
by the numbers in parentheses that are sometimes attributed to them outside 
Russia. 

The operating frequencies in MHz are computed from the channel number K.  
Frequencies (MHz) are L1 = 1602.0 + 0.5625K, and L2 = 1246.0 + 0.4375K.


COSMOS NNNN(nnnn)   
ID, (CAT#)        EPOCH,FREQUENCY,ORBIT            COMMENT, GLONASS #

COSMOS 2111         23 November 1995                GLONASS 249 (49)
90-110C (21008)     Channel: 23
                    Inclination: 65.1
                    RAAN: 091.8
COSMOS 2178         23 November 1995                GLONASS 769 (54)
92-005B (21854)     Channel: 2
                    Inclination: 65.1
                    RAAN: 091.5
COSMOS 2179         23 November 1995                GLONASS 771 (55)
92-005C (21855)     Channel: 23
                    Inclination: 65.1
                    RAAN: 091.4
COSMOS 2204 (2205)  23 November 1995                GLONASS 756 (57)
92-047B (22057)     Channel: 24
                    Inclination: 64.8
                    RAAN: 330.9
COSMOS 2206 (2204)  23 November 1995                GLONASS 774 (56)
92-047A (22056)     Channel: 1            
                    Inclination: 64.8
                    RAAN: 330.8
COSMOS 2235 (2336)  23 November 1995                GLONASS 759 (61)
93-010C (22514)     Channel: 21
                    Inclination: 65.1
                    RAAN: 091.3
COSMOS 2236 (2235)  23 November 1995                GLONASS 757 (60)
93-010B (22513)     Channel: 5            
                    Inclination: 65.1
                    RAAN: 091.3
COSMOS 2275 (2277)  23 November 1995                GLONASS 758 (64)
94-021C (23045)     Channel: 10              
                    Inclination: 64.7
                    RAAN: 331.2
COS 2276 (2275)     23 November 1995                GLONASS 760 (62)
94-021A (23043)     Channel: 24
                    Inclination: 64.7
                    RAAN: 331.2
COSMOS 2277 (2276)  23 November 1995                GLONASS 761 (63)
94-021B (23044)     Channel: 3
                    Inclination: 64.7
                    RAAN: 331.2
COSMOS 2287         23 November 1995                GLONASS 767 (65)
94-050A (23203)     Channel: 22
                    Inclination: 64.8
                    RAAN: 211.2
COSMOS 2288 (2289)  23 November 1995                GLONASS 770 (67)
94-050C (23205)     Channel: 9
                    Inclination: 64.8
                    RAAN: 211.2
COSMOS 2289 (2288)  23 November 1995                GLONASS 775 (66)
94-050B (23204)     Channel: 22
                    Inclination: 64.8
                    RAAN: 211.2
COSMOS 2294 (2296)  23 November 1995                GLONASS 762 (70)
94-076C (23398)     Channel: 12
                    Inclination: 65.0
                    RAAN: 091.4
COSMOS 2295 (2294)  23 November 1995                GLONASS 763 (68)
94-076A (23396)     Channel: 21
                    Inclination: 65.0
                    RAAN: 091.4
COSMOS 2296 (2295)  23 November 1995                GLONASS 764 (69)
94-076B (23397)     Channel: 13
                    Inclination: 65.0
                    RAAN: 091.3
COSMOS 2307         23 November 1995                GLONASS 765 (73)
95-009C (23513)     Channel: 1
                    Inclination: 64.7
                    RAAN: 331.4
COSMOS 2308         23 November 1995                GLONASS 766 (71)
95-009A (23511)     Channel: 10
                    Inclination: 64.7
                    RAAN: 331.5
COSMOS 2309         23 November 1995                GLONASS 777 (72)
95-009B (23512)     Channel: 3
                    Inclination: 64.7
                    RAAN: 331.5
COSMOS 2316         23 November 1995                GLONASS 780 (74)
95-037A (23620)     Channel: 4
                    Inclination: 64.9
                    RAAN: 211.0
COSMOS 2317         23 November 1995                GLONASS 781 (75)
95-037B (23621)     Channel: 9
                    Inclination: 64.8
                    RAAN: 211.0
COSMOS 2318        *17 January 1996                 GLONASS 785 (76)
95-037C (23622)     Channel:  4                     Unusable since
                    Inclination: 64.8               14 Jan 96.
                    RAAN: 211.0
COSMOS 2323        25 December 1995                 GLONASS 776 (??)
95-068A (23734)     Channel: 6
                    Inclination: 64.8
                    RAAN: 211.0
COSMOS 2324        25 December 1995                 GLONASS 778 (??)
95-068B (23735)     Channel: 11                     Spare.
                    Inclination: 64.8
                    RAAN: 211.0
COSMOS 2325        25 December 1995                 GLONASS 782 (??)
95-068C (23736)     Channel: 6
                    Inclination: 64.8
                    RAAN: 211.0
                      
The GLONASS NNN series orbit in three distinct planes that are 120
deg apart. Each plane has eight "slots". Following are the members of
the planes/slots. 

   Plane 1              Plane 2              Plane 3
slot-1   771         slot-9    776/778    slot-17   760
slot-2   757         slot-10   781        slot-18   758
slot-3   763         slot-11   785        slot-19   777
slot-4   762         slot-12   767        slot-20   765
slot-5   249         slot-13   782        slot-21   756
slot-6   764         slot-14   770        slot-22   766
slot-7   759         slot-15   780        slot-23   761
slot-8   769         slot-16   775        slot-24   774

                            CONTACT:
Coordinational Scientific Information Center(CSIC) Russian Space Forces 
E-mail: sfcsic@iki3.bitnet;  sfcsic@iki3.iki.rssi.ru;  sfcsic@mx.iki.rssi.ru
    Home Page WWW.IKI: http://www.rssi.ru/SFCSIC/SFCSIC_main.html

    4. Actual decays/landings of payload spacecraft and rocket bodies (R/B)
only. No further information is available.

Designations       Common Name                      1996

1995-004B (23652)  R/B Ariane 44P                  13 Jan 1996
1995-073B (23755) R/B Long March                   06 Jan
1995-070B (23745)  R/B SL-4                        21 Dec 1995
1994-088A (23453)  COSMOS 2305                     16 Dec
1995-068D (23737)  R/B SL-12                       15 Dec

    5. Miscellaneous Items. (This section contains information/data that are
entered on occasion and may not be repeated in each issue of the SPACEWARN
Bulletin.)

*COSMOS 2326 was reported in SPX.506 as a Russian military spacecraft;
however, it carries a scientific instrumenet also to monitor Galactic gamma 
rays.

NSSDC/WDC-A-R&S is an archival center for science data from many spacecraft.
Some data are on line for electronic access. Please contact the Request Office,
NSSDC, Code 633, NASA/GSFC, Greenbelt, Maryland 20771, U.S.A., for specific
information (REQUEST@NSSDCA.GSFC.NASA.GOV). Precomputed trajectory files 
and orbital parameters of many magnetospheric and heliospheric science-payload
spacecraft may be FTP'ed from NSSDC's ANON_DIR:[000000.ACTIVE] and its
several subdirectories. (See the last page of the bulletin for the access 
method; a file in the ACTIVE directory named AAREADME.DOC outlines the 
contents.) It can also be accessed through WWW URL:
                 http://sscop1.gsfc.nasa.gov/ssc.html
This html also enables executing several codes related to the orbits 
of many geocentric science payload spacecraft. The codes related to 
the heliospheric spacecraft trajectories can be executed through URL:
                 http://nssdc/space/helios/heli.html

ERRATUM: In SPX.472 the inclination of the spacecraft OXP-1 (1993-009A)
was reported as 99.7 deg. The correct inclination is 24.9 deg, either 
at launch or soon after.

                         SPACEWARN Bulletin
                         ------------------

The Bulletin is intended to serve as an international communication medium
for the rapid distribution of information on satellites and space probes.  The
material it contains is based on guidelines in the COSPAR Guide to Rocket and
Satellite Information and Data Exchange, COSPAR Transactions #8, December 1972,
and various Committee on Space Research (COSPAR) resolutions.  

Hard copy recipients and electronic accessers are encouraged to disseminate the
bulletin to interested individuals and institutions in their regions or 
countries.  All bulletins beginning with January 1991 (SPX-447) are now 
available on line; the SPX number increases by one for each succeeding month 
(for example, the January 1993 bulletin is SPX-471).

Through DECnet:	
  At prompt type: copy nssdca::anon_dir:[000000.active.spx]spx.471  
Through FTP: 	At prompt type:  ftp nssdca.gsfc.nasa.gov 
  At the next prompt type:  anonymous
  At the PASSWORD (NSSDCA.GSFC.GOV.ANONYMOUS) prompt hit:   return
  At the next prompt type: get anon_dir:[000000.active.spx]spx.471 spx.471

Other subdirectories in [000000.active] carry many files of interest on
science payload spacecraft.

The bulletin may also be accessed through the World Wide Web (WWW). The URL is
http://nssdc.gsfc.nasa.gov/spacewarn/spacewarn.html. 

Users are urged to submit their comments and suggestions for the improvement of
this bulletin to SPACEWARN Bulletin, World Data Center-A for Rockets and
Satellites, Code 633, Goddard Space Flight Center, Greenbelt, Maryland 20771
U.S.A.

Categories of Spacecraft

To improve the effectiveness of international distribution of satellite and
space probe information via the SPACEWARN system, spacecraft are identified in
categories according to the urgency and detail of information needed by the
scientific community as follows: 

CATEGORY 1:  Spacecraft that carry essentially continuous telemetry or radio 
beacons, usually on frequencies less than 150 MHz.

CATEGORY 2: GPS constellation of positioning/navigational spacecraft.

CATEGORY 3: GLONASS constellation of positioning/navigational spacecraft.  

CATEGORY 4: Occassionally, a list of bright, orbiting objects of visual
magnitude 4 or brighter.

The bulletin also carries launch dates, international ID's and USSPACECOM 
catalog numbers, followed by a brief outline of the payload and orbital 
parameters, re-entry of major objects, and miscellaneous sections.

These data are based on launch announcements or on information received from
individuals, launching authorities, FBIS and USSPACECOM telexes, and news 
magazines.