All information in this publication was received between 01 March 2011 and 31 March 2011.
|Spacecraft Name||Launch Date (UT)|
|2011-011A||37377||USA 227||11 March 2011|
|2011-010A||37375||OTV 2 (USA 226)||05 March 2011|
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: igscb.jpl.nasa.gov [directory /igscb] WWW: http://igscb.jpl.nasa.gov/ E-mail: firstname.lastname@example.org
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.
The latest addition to the fleet is GPS 2F-1 (2010-022A).
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: http://www.glonass-ianc.rsa.ru/ maintained by the Information-Analytical Center (IAC), Russian Space Agency.
According to IAC the latest addition to the fleet is Cosmos 2471 (2011-009A.)
See http://www.space-track.org/perl/bulk_files.pl. Users must register. Conditions apply.
Designations Common Name Decay Date (2011) 2011-003A(37351) HTV 2 30 March 2010-031B(36609) SHAVIT R/B 28 March 2004-043H(28478) SL-12 R/B(AUX MOTOR) 20 March 2011-001C(37346) SL-23 R/B 19 March 2010-052A(37183) SOYUZ-TMA 1M 16 March 2003-030A(27838) ORBVIEW 3 13 March 2011-008A(37371) STS-133 09 March 1999-055C(25935) NAVSTAR 46 R/B(PAM-D) 06 March 2008-019B(32780) CZ-3C R/B 05 March 2003-058C(28131) NAVSTAR 53 R/B(PAM-D) 03 March
See http://www.space-track.org/perl/60day_decay_predict.pl. Users must register for access. Conditions apply
This section contains information or data that are entered on occasion and may not be repeated in each issue of the SPACEWARN Bulletin.
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: