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Questions/comments about the content of these pages should be directed to: The World Warning Agency for Satellites, wwas@nssdca.gsfc.nasa.gov National Space Science Data Center, Mail Code 633 NASA Goddard Space Flight Center, Greenbelt, MD 20771 |
| 01 May 2000 |
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2000-021A (26301) Progress M1-2 25 April
2000-020A (26298) Galaxy 4R 19 April
2000-019A (26243) SESAT 17 April
2000-018A (26116) Soyuz-TM 04 April
| 2000-021A | Progress M1-2 is a Russian automatic cargo ship that was launched from Baikonur at 20:07 UT by a Soyuz-U rocket to dock with (on 28 April) and deliver supplies to Mir station. It is the second of the new model, Progress M1, which will be a main carrier of cargo to the International Space Station. Its 2,037 kg payload contains an air-oxygen mixture, fuel (1,800 kg) to boost Mir to a higher orbit, and food and supplies for the two cosmonauts who are already in Mir doing repair jobs. Initial orbital parameters were period 89.4 min, apogee 248 km, perigee 230 km, and inclination 51.65 deg. |
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| 2000-020A | Galaxy 4R is an American (PanAmSAT Corporation) geosynchronous communications spacecraft that was launched by an Ariane 42L rocket from Kourou at 00:29 UT. The 2,216 kg, 8.8 kW spacecraft will transmit television and internet signals from/to all parts of the United States, through its 24 C-band and 24 Ku-band transponders after parking over 99 deg-W longitude. |
| 2000-019A | SESAT is an European-Russian geostationary communications spacecraft that was launched by a Proton rocket from Baikonur at 21:06 UT. The 2,400 kg, 5.6 kW spacecraft will provide high-speed internet access, high-volume data transmission, video broadcasting to support corporate networks, and messaging and positioning services to mobile users through its 18 Ku-band transponders after parking over 48 deg-E longitude. |
| 2000-018A | Soyuz-TM is a Russian passenger ship that was launched at 05:01 UT from Baikonur by a Soyuz rocket to transport two cosmonauts for a 45-day (or longer) stay in Mir station. It docked with Mir automatically after a 50-hour voyage. They will repair the 14-year-old station, especially the recent problems of pressure leak, and a dysfunctional orientation of a solar panel. Initial orbital parameters were period 91.2 min, apogee 333 km, perigee 329 km, and inclination 51.7 deg. |
Note: The full list appeared in SPX 545. The list will not be repeated in future issues until significantly revised again.
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
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 http://www.utexas.edu/depts/grg/gcraft/notes/gps/gps.html#DODSystem It provides many links to GPS related databases.
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) = 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: http://www.rssi.ru/SFCSIC/english.html maintained by the Coordinational Scientific Information Center (CSIC),Russian Space Forces.
Designations Common Name Decay Date (2000) 1996-019B (23834) R/B (1) Delta 2 28 Apr 2000-005A (26067) PROGRESS M-1 27 Apr 1990-054E (20704) R/B (Aux.) 23 Apr 1985-074D (15983) R/B(2) that launched Molniya 1-64 20 Apr 2000-019B (26244) R/B(1) Proton-K 19 Apr 1990-104A (20966) COSMOS 2106 07 Apr 2000-018B (26117) R/B Soyuz 05 Apr 1996-055B (24314) R/B Ariane 42P 02 Apr
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:
http://nssdc.gsfc.nasa.gov/space/
For off-line data, please contact the Request Office, NSSDC, Code 633, NASA GSFC, Greenbelt, Maryland 20771, U.S.A., for specific information (request@nssdca.gsfc.nasa.gov). 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 accessed via anonymous FTP from NSSDC. (See About the SPACEWARN Bulletin for access method; a file in the active directory named AAREADME.TXT, outlines the contents.)
Other files interest for Earth-centered spacecraft can be generated through the URL,
http://sscweb.gsfc.nasa.gov/
Programs related to the heliospheric spacecraft trajectories can be executed
through the URL,
http://nssdc.gsfc.nasa.gov/space/helios/heli.html
Magnetospheric, Planetary, and Astronomical science data from many spacecraft
may be accessed through links from the URL:
http://nssdc.gsfc.nasa.gov/
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Questions/comments about the content of these pages should be directed to: The World Warning Agency for Satellites, wwas@nssdca.gsfc.nasa.gov National Space Science Data Center, Mail Code 633 NASA Goddard Space Flight Center, Greenbelt, MD 20771 |