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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 |
1997-025A (24808) THOR 2A 20 May 1997-020D (24795) IRIDIUM 5 05 May 1997-024A (24806) Cosmos 2343 15 May 1997-020C (24794) IRIDIUM 6 05 May 1997-023A (24804) STS 84 15 May 1997-020B (24793) IRIDIUM 7 05 May 1997-022A (24800) Cosmos 2342 14 May 1997-020A (24792) IRIDIUM 8 05 May 1997-021A (24798) DONGFANGHONG 3 11 May 1997-019A (24786) GOES 10 25 Apr 1997-020E (24796) IRIDIUM 4 05 May
The last full list appeared as a part of SPX 520. The list will reappear only after major updates to the list are available.
Carsten Groen-Nielsen of the VEGA Space Systems Engineering company reports that Meteosat 3 listed in the section remains deactivated since late 1995.
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-515. It will not be repeated in view of the excellent updated source at: http://www.rssi.ru/SFCSIC/glonass.html maintained by the Coordinational Scientific Information Center (CSIC),Russian Space Forces.
Designations Common Name 1997 1997-023A (24804) STS 84 Landed on 24 May 1997-024B (24807) R/B SOYUZ-U 20 May
It has come to the notice of SPACEWARN office that the Pegasus XL rocket 1997-018B (24780) that launched the MINISAT (1997-018A, 24779) has a microcapsule, appropriately named Celestis, containing the ashes of some long-dead people and that more such capsules may be available for past and future ashes.
Planned Spacecraft Mission
13/1100 Z MAY "97
FM CRL KOKUBUNJI JAPAN 232611 DEMPA J
TO COSPAE/ISES
WORLD WARNING AGENCY FOR SATELLITES
WORLD DATA CENTER-A FOR R & S, NASA/GSFC
CODE 633, GREENBELT, MERYLAND, 20771.USA
PRELAUNCH ANNOUNCEMENT
Spacecraft name Communications and broadcasting
Engineering Test Satellite(COMETS)
Planned Launch DATE August 18.1997
Country Japan
Orbit Type Geo-stationary Satellite Orbit
Perigee approx. 35786km
Apogee approx. 35786km
Weight approx. 2166kg (Beginning of life)
Orbit Period approx. 23h 56m
Geographic Longitude 121.0 degree East
Longitudinal Tolerance +/- 0.1degree
Transmitting Frequencies *2269.680 MHz 3 W
& Output Power
*2025.000 MHz 75 W
( 2044.250 MHz)
( 2076.479 MHz)
( 2076.940 MHz) 50 W
( 2096.730 MHz)
( 2106.400.MHz)
*19685.000 MHz 30 W
*20095.000 MHz 0.3 W
*20115.000 MHz 0.3 W
*20165.000 MHz 0.15 W
*20370.000 MHz 3.8 W
*20700.000 MHz 250 W
Transmitting Frequencies *20982.000 MHz 23 W
*23157.052 MHz 2.5 W
*43746.000 MHz 26 W
End of mission period of 3 years
Launch Organization National Space Development Agency of Japan
Spacecraft Missions
The Communications and Broadcasting Engineering Test Satellite (COMETS) is
a research and development satellite aimed at developing new technology in
communications and broadcasting fields such as inter-orbit communications,
advanced satellite broadcasting, advanced mobile satellite communications,
and upgrading large geo-stationary satellites. It is also used for
conducting experiments and verifying the above subjects.
*NAME COMETS
*Lift-off Time(UTC) YEAR MONTH DAY HOUR MINUTE SEC
1997 08 18 06 50 00
*EPOCH(UTC) YEAR MONTH DAY HOUR MINUTE SEC
: 1997 08 18 07 17 12.320
*OSCULATING ORBITAL ELEMENTS(NOMINAL)
S.M.AIS (km) : 24491.180
ECCEN. : 0.7293718
INCL. (deg) : 28.500
ASC.NODE (deg) : 105.631
ARG.PER (deg) : 179.000
M.ANOM (deg) : 0.801
______________________________
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 (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 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:
http://sscop1.gsfc.nasa.gov/ssc.html
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:
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 |