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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 September 1998 |
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1998-050A (25462) ASTRA 2A 30 Aug
1998-049A (25460) ST 1 25 Aug
1998-048B (25432) Iridium 76 19 Aug
1998-048A (25431) Iridium 03 19 Aug
1998-047A (25429) Soyuz-TM 28 13 Aug
1998-046H (25420) ORBCOMM-FM 17 02 Aug
1998-046G (25419) ORBCOMM-FM 18 02 Aug
1998-046F (25418) ORBCOMM-FM 19 02 Aug
1998-046E (25417) ORBCOMM-FM 20 02 Aug
1998-046D (25416) ORBCOMM-FM 16 02 Aug
1998-046C (25415) ORBCOMM-FM 15 02 Aug
1998-046B (25414) ORBCOMM-FM 14 02 Aug
1998-046A (25413) ORBCOMM-FM 13 02 Aug
| 1998-050A | Astra 2A is a European (Luxembourg-registered) geosynchronous communications spacecraft that was launched by a Proton-K rocket from Baikonur at 00:31 UT. It will provide voice and video communications to Europe through its 32 Ku-band transponders after parking over 28.2-E longitude. |
|---|---|
| 1998-049A | ST 1 is a Singapore/Taiwan (ROC) geosynchronous communications spacecraft that was launched by an Ariane 44P rocket from Kourou at 11:07 UT. The 3,200 kg satellite carries 16 Ku-band and 14 C-band transponders to provide voice and video communications to the Pacific rim and East-Asian countries, after parking at 88-E longitude. |
| 1998-048A, 1998-048B |
Iridium 03 and Iridium 76 are the latest launches to enable fulfillment of the Iridium series; they replace the failed satellites in the series. They were launched by a Long March 2C rocket from Taiyuan launch center in the Northern province of Shanxi at 21:01 UT. The Iridium series is intended to provide links from/to telephones located far away from cellular areas. The initial orbital parameters of both were period 98 min, apogee 635 km, perigee 612 km and inclination 86.4 deg. |
| 1998-047A | Soyuz-TM 28 is a Russian cosmonaut-transporting vehicle that was launched to carry three cosmonauts to the MIR station; two of them will stay in Mir for 201 days. It was launched by a Soyuz-U rocket from Baykonur at 09:43 UT. It was docked manually with Mir at 10:56 UT on 15 August 1998, after automatically moving within 10 meters from the station. Initial orbital parameters were period 92 min, apogee 364 km, perigee 362 km, and inclination 51.7 deg. |
| 1998-046A, 1998-046B, 1998-046C, 1998-046D, 1998-046E, 1998-046F, 1998-046G, 1998-046H |
ORBCOMM-FM 13, 14, 15, 16, 20, 19, 18, 17 are the latest additions to the ORBCOMM fleet of relaying satellites. The fleet will provide links between mobile or fixed telephones and their remote counterparts. Initial orbital parameters of all were period 101 min, apogee 826 km, perigee 816 km, and inclination 45 deg. |
The last full list appeared as a part of SPX 520. The list will reappear only after major updates to the list are available.
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.
The latest member of the GPS fleet is NAVSTAR 38 (1997-067A), launched on 6 November 1997.
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 1998 1998-026D (25322) R/B Long March 27 Aug 1998-010F (25174) R/B Delta 2 27 Aug 1998-004A (25146) SOYUZ TM-27 25 Aug 1992-019C (21932) R/B of NAVSTAR 25 16 Aug 1998-047B (25430) SOYUZ-U 15 Aug 1997-071C (25051) R/B Ariane 44L 06 Aug
In SPX-537 Cosmos 2360 was reported to belong to the Tselnia series. The correct spelling is Tselina.
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 trajectories 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 |