A monthly publication of the National Space Science Data Center/World Data Center for Satellite Information
No. 607                                                                                                                               01 Jun. 2004

SPACEWARN Activities

All information in this publication was received between 1 May 2004 and 31 May 2004.

A. List of New International Designations and Launch Dates (UTC).

USSPACECOM Catalog numbers are in parentheses.

    INT.ID    CAT. #      NAME                   DATE (UT)
   2004-020A   (28350) Cosmos 2407              28 May 2004
   2004-019A   (28261) Progress-M 49            25 May 2004
   2004-018A   (28254) Rocsat 2                 19 May 2004
   2004-017A   (28252) AMC 11                   19 May 2004
   2004-016A   (28238) DirecTV 7S               04 May 2004

B. Text of Launch Announcements.

2004-020A Cosmos 2407 is a Russian military satellite that was launched by a Tsyklon 2 rocket from Baikonur at 06:00 UT on 28 May 2004. The initial orbital parameters were period 92.8 min, apogee 416 km, perigee 405 km, and inclination 65°.
2004-019A Progress-M 49 is a Russian cargo carrier that was launched by a Soyuz-FG rocket from Baikonur at 12:34 UT on 25 May 2004. It carried 2.5 tonnes of supplies, water, food and fuel to the International Space Station (ISS). It docked automatically with the Zvezda module of the ISS at 13:55 UT on 27 May 2004. In preparation for the docking, the previously docked Progress M1-11 was evacuated on 24 May, carrying all the trash from the ISS, and was destined for a controlled burn on 3 June. The initial orbital parameters were period 89.3 min, apogee 246 km, perigee 236 km, and inclination 51.6°.
2004-018A Rocsat 2 is a Taiwanese (ROC) remote sensing satellite that was launched from Vandenberg AFB by a Taurus XL rocket at 17:47 UT on 19 May 2004. The 750 kg satellite carries imaging instruments to take pictures of crop yields in Taiwan, natural disasters, and oil spills on land and ocean, and to image high altitude red lightning strokes called sprites. Initial orbital parameters were period 100.1 min, apogee 767 km, perigee 764 km, and inclination 99.1°.
2004-017A AMC 11, also known as GE 11, is an American geostationary communications satellite that was launched by an Atlas 2AS rocket from Cape Canaveral at 22:22 UT on 19 May 2004. The 1.8 tonne satellite will enable dozens of television networks in America to provide HD videos through its 23 C-band transponders after parking over 131° W longitude.
2004-016A DirecTV 7S is an American geostationary communications satellite that was launched by a Zenit 3SL rocket from the floating platform, Odyssey moored at 154° W in the equatorial Pacific ocean. The 13 kW satellite will provide direct-to-home television service to American homes through its 54 transponders and 27 spot-beams or, in another mode, through its 44 transponders and 30 spot-beams after parking over 119° W longitude. It is the second spot-beam satellite in the DirecTV fleet, after DirecTV 4S that was launched in November 2001.

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. Updates or corrections to the list are possible only with information from the user community.)

    Note: The full list appeared in SPX 545. The list will not be repeated in future issues until significantly revised again.

  2. Global Positioning System satellites useful for navigational purposes and geodetic studies.

    High precision (<20 cm) GPS constellation tracking data obtained from the network of about 400 dedicated global stations that are of interest to geodetic study may be obtained through the following services provided by the International GNSS Service (IGS). The IGS is a service of the International Association of Geodesy (IAG).

         FTP:  [directory /igscb]

    The standard format of the GPS situation appeared in SPACEWARN Bulletin No. 518. It will not be repeated since an excellent source of trajectory- and science-related GPS information is at:

    It provides many links to GPS related databases.

    The latest addition to the fleet is Navstar 53, 2003-058A.

  3. Russian Global Navigational (Positioning) Spacecraft, GLONASS constellation. (SPACEWARN requests updates/additions from readers to this list.)

    All GLONASS spacecraft are in the general Cosmos series. The Cosmos numbers 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) = 1602.0 + 0.5625K and L2 = 1246.0 + 0.4375K.

    The standard format of the GLONASS situation last appeared in SPACEWARN Bulletin No. 545. It will not be repeated in view of the excellent updated source at: maintained by the Information-Analytical Center (IAC), Russian Space Agency.

  4. Visually bright objects.

    See Users must register. Conditions apply.

  5. Actual decays/landings of payload spacecraft and rocket bodies (R/B) only. No further information is available.
    Designations         Common Name                  Decay Date (2004)
    2004-020B (28351)  R/B Tsyklon 2                     28 May
    2004-019B (28262)  R/B Soyuz-FG                      28 May
    2004-014B (28231)  R/B Delta 2                       27 May
    2000-065B (26576)  R/B Atlas 2A-Centaur              16 May
    1979-099B (11630)  R/B that launched COSMOS 1145     07 May
    1964-049E (00898)  COSMOS 41                         07 May
    1996-010A (23794)  RADUGA 33                         06 May
    1997-083B (25111)  R/B Ariane 42L                    03 May
    2003-047A (28052)  SOYUZ-TMA 3                       30 Apr
    2004-011B (28219)  R/B Atlas 2AS-Centaur             19 Apr
  6. 60-day Decay Predictions.

    See Users must register for access. Conditions apply

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

    Dr. Edwin J. Grayzeck ( became the Director of World Data Center for Satellite Information (WDC-SI) in May 2004.

  8. Related NSSDC resources.

    NSSDC/WDC for Satellite Information is an archival center for science data from many spacecraft. Many space physics datasets are on-line for electronic access through:

    For off-line data, please contact the Request Office, NSSDC, Code 690.1, 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 obtained from:

    Other files of interest for Earth-centered spacecraft can be generated via the URL,

    Programs related to the heliospheric spacecraft trajectories can be executed through the URL:

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

SPACEWARN Bulletin index About the SPACEWARN Bulletin About Spacecraft Categories NSSDC home page

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

Dr. Edwin Bell, II
NASA Official: Dr. David R. Williams
V1.0, 01 June 2004
Last updated: 01 July 2004, EVB II