Status Report

SPACEWARN Bulletin 577 (DRAFT)

By SpaceRef Editor
December 3, 2001
Filed under ,
A monthly publication of the National Space Science Data Center/World Data Center for Satellite Information

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

    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 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:  [directory /igscb]

    The standard format of the GPS situation appeared in SPX-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
    (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

    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 appeared in SPX-545. It
    will not be repeated in view of the excellent updated source at:
    maintained by the Coordinational
    Scientific Information Center (CSIC),Russian Space Forces.

  4. Visually bright objects.

    A comprehensive list of visually bright
    objects with their two-line orbital elements is available from USSPACECOM, via a
    NASA site, The list, however,
    does not include visual magnitudes, but are expected to be brighter than
    magnitude 5.

  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.

    The USSPACECOM forecasts and maintains a
    list of decays of orbiting objects expected in the next 60 days , with fair
    accuracy. The list may be accessed through a NASA site,
    as follows:

    1. Select “OIG Main Page”.
    2. Select “Send Message to System administrator”, who will provide a login account.
    3. After getting an ID and a Password, click on “Registered User Login”.
      (Step (2) is not needed after obtaining an account.)
    4. Select “Continue”.
    5. Select “General information”.
    6. Select “Reports”.
    7. Select “Sixty Day Decay…”.

    Note: The login requirement is enforced due to the events on 11 September 2001.

  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 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 obtained from:

    Other files interest for Earth-centered spacecraft can be generated through 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:

SpaceRef staff editor.