A monthly publication of the National Space Science Data Center/World Data Center for Satellite Information
No. 577                                                                                                                            01 Dec. 2001

SPACEWARN Activities

All information in this publication was received between 1 November 2001 and 30 November 2001.

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

USSPACECOM Catalog numbers are in parentheses.
    INT.ID    CAT. #      NAME                 DATE (2001)
   2001-052A    (26985)  DirecTV-4S           27 November
   2001-051A    (26983)  Progress M1-7        26 November

B. Text of Launch Announcements.

2001-052A DirecTV-4S is an American geosynchronous communications spacecraft that was launched by an Ariane 44LP rocket from Kourou at 00:35 on 27 November 2001. The 4.3 tonne satellite will provide more than 300 local TV channels to 41 metropolitan communities through its 11 C-band transponders after parking over 101° W longitude.
2001-051A Progress M1-7 is a Russian automatic cargo carrier that was launched by an upgraded Soyuz-FG booster from Baikonur at 18:24 UT on 26 November 2001. It docked with the Zarya module of the International Space Station (ISS) at 19:45 UT on 28 November 2001 to deliver 2.5 tonne of food, fuel and equipment. Its docking remained to be secured by a spacewalk by one or more astronauts, so as to ensure a safe docking by a to-be-launched Shuttle. It carried also a microsatellite named Klibri to be released after the Progress undocked from Zarya. Initial orbital parameters were period 89.2 min, apogee 244 km, perigee 230 km, and inclination 51.6 .

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.

  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 (2001)
    2001-051B (26984) R/B Soyuz-FG                              28 Nov
    2001-050B (26971) R/B Molniya-M                             27 Nov
    1978-117A (11155) COSMOS 1063                               25 Nov
    1995-068G (23740) R/B (Aux) Proton-K                        23 Nov
    2001-036A (26890) PROGRESS M-45                             22 Nov
    1977-091B (10363) R/B that launched COSMOS 955              14 Nov
    1995-037K (23631) R/B (Aux) Proton-K                        02 Nov
    1999-026D (25738) R/B(2) Pegasus                            31 Oct
    1983-114A (14516) MOLNIYA 1-59                              30 Oct
  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.)

  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, 03 December 2001
Last updated: 05 March 2003, EVB II