SPACEWARN Bulletin Number 512

A publication of NASA's National Space Science Data Center/World Data Center-A for Rockets and Satellites as the WWAS for ISES/COSPAR

25 June 1996

SPACEWARN Activities

All information in this publication was received between 25 May 1996 and 24 June 1996.

A. List of New International Designations and Launch Dates.

USSPACECOM Catalog numbers are in parentheses.
1996-036A (23931) STS 78               20 Jun
1996-035A (23915) INTELSAT 709         15 Jun
1996-034A (23880) Gorizont 32          25 May
1996-029C (23908) USA 121              12 May
1996-029B (23907) USA 120              12 May
1996-029A (23893) USA 119              12 May

B. Text of Launch Announcements.

STS 78 is an American Shuttle spacecraft that was launched from Cape Canaveral at 14:49 UT for a 17 day mission. It carried a Spacelab (LMS-1) with many supplies and instruments for 41 microgravity experiments involving fish embryos, rats, Bonzai plants, fluid dynamics, metallurgy, protein crystal growth, etc. Initial orbital parameters were period 90 min, apogee/perigee 267 km, and inclination 39 deg.

INTELSAT 709 is a geosynchronous communications spacecraft of the INTELSAT consortium. It was launched by an Ariane 44P rocket from Kourou in French Guiana and carries 36 Ku- and C-band transponders to serve the Atlantic ocean region.

Gorizont 32 is a Russian geosynchronous communications spacecraft that was launched from Baykonur by a Proton-K rocket at 02:05 UT. It would augment television channels available to the people in Siberia. It is only approximately geosynchronous because the period is 24.54 hours, apogee/perigee altitudes 36,496 km, and inclination 1.27 deg.

1996-029C, 1996-029B, 1996-029A
USA 121, USA 120, and USA 119 are American military spacecraft that were launched, probably by a Titan rocket from Cape Canaveral. The companion USA 122 was announced in SPX-511, but these three were reported by the USSPACECOM with some delay.

C. Spacecraft Particularly Suited for International Participation

Category I
  1. Spacecraft with essentially continuous radio beacons on frequencies less than 150 MHz, or higher frequencies if especially suited for ionospheric or geodetic studies. To see a list select here.
  2. Global Positioning System satellites useful for navigational purposes and geodetic studies. To see a list select here.

    The GPS 2-NN series orbits in six distinct planes that are about 60 deg apart. Each plane has five "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 1995.

    PLANE    RAAN OF PLANE SLOT-1     SLOT-2      SLOT-3      SLOT-4  SLOT-5
      A           235       2-21       2-12        2-15        2-04
      B           296       2-18       2-07        2-02        2-22
      C           357       2-24       2-25        2-19        2-20   2-13
      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. To see a list select here.

    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
    Coordinational Scientific Information Center (CSIC) Russian Space Forces
    E-mail: sfcsic@iki3.bitnet;;
    Home page WWW.IKI:

  4. Actual decays/landings of payload spacecraft and rocket bodies (R/B) only. Additional information is not available.
    Designations       Common Name                     1996
    1995-063E (23721)  SL-12 R/B                     13 Jun
    1989-041C (20042)  ARIANE R/B                    13 Jun
    1996-016A (23818)  COSMOS 2331                   11 Jun
    1996-032A (23870)  STS 77     Landed on          29 May
    1994-087E (23459)  SL-12 R/B                     27 May
    1996-034D (23883)  SL-12 R/B                     25 May
    1996-034B (23881)  SL-12 R/B                     25 May
    1996-032B (23871)  SPARTAN Recaptured by STS 77  20 May
  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.)

    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 NSSDC Request Coordination Office, Code 633, NASA/GSFC, Greenbelt, Maryland 20771, U.S.A., for specific information ( Information on the current status of the instruments on board from the investigators will be most welcomed. 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 About the SPACEWARN Bulletin for access method; a file in the ACTIVE directory named AAREADME.DOC, outlines the contents.) It can also be accessed via the WWW at:

    This URL also enables executing several codes related to the orbits of many geocentric science payload spacecraft. The codes related to the heliospheric spacecraft trjectories can be executed through:

    Magnetospheric, Planetary, and Astronomical science data from many spacecraft may be accessed through links from the URL:

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Questions/comments about the content of these pages should be directed to:
The World Warning Agency for Satellites,
National Space Science Data Center, Mail Code 633
NASA Goddard Space Flight Center, Greenbelt, MD 20771

Page Curator:
Dr. Edwin V. Bell, II,, +1-301-286-1187
NSSDC, Mail Code 633, NASA Goddard Space Flight Center, Greenbelt, MD 20771

NASA Official: J. H. King,
V1.0: 10 July 1996
Last Updated: 31 July 1996, EVB II