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Track IRIDIUM 921 Satellite in Real Time

Detailed information about IRIDIUM 921 satellite

Designator id: 1997-034E

Description of IRIDIUM 921 Satellite:

Iridium 21 was part of a planned commercial communications network comprised of a constellation of 66 LEO spacecraft. The system will use L-Band to provide global communications services through portable handsets. A total of 125 spacecraft will be built by Lockheed for more than $700M. Commercial service is planned to begin in 1998. The system will employ 15-20 ground stations with a master control complex in Landsdowne, VA, a backup in Italy, and a third engineering center in Chandler, AZ. The spacecraft was 3-axis stabilized, with a hydrazine propulsion system. It had 2 solar panels with 1-axis articulation. The system employed L-Band using FDMA/TDMA to provide voice at 4.8 kbps and data at 2400 bps with 16 dB margin. Each satellite had 48 spot beams for Earth coverage and used Ka-Band for crosslinks and ground commanding.

Technical data:

Launch Date: 1997-07-09
Launch Vehicle: Delta II 7920
Launch Site: Vandenberg AFB, United States

Funding Agencies:

Iridium (United States)



Source: Nasa

Two Line Element Set (TLE):
1 24873U 97034E   12339.40120956  .00001418  00000-0  10992-3 0  2274
2 24873 086.3840 123.7517 0006590 307.2003 052.8620 15.00575343838797

Last TLE update on :2012-12-04

Find more details about IRIDIUM 921 Satellite