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Track IRIDIUM 11 Satellite in Real Time

Detailed information about IRIDIUM 11 satellite

Designator id: 1998-074B

Description of IRIDIUM 11 Satellite:

Iridium 20A was part of a planned commercial communications network comprised of a constellation of 66 LEO spacecraft. It replaced Iridium 20 in the constellation. 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: 1998-12-19
Launch Vehicle: Long March 2C
Launch Site: Taiyuan, Peoples Republic of China
Mass: 556.0 kg

Funding Agencies:

Iridium (United States)

Disciplines:

Communications

Source: Nasa

Two Line Element Set (TLE):
1 25578U 98074B   12339.15350022 -.00000209  00000-0 -81686-4 0  1999
2 25578 086.3957 227.7723 0002148 078.1090 282.0399 14.34207512740044

Last TLE update on :2012-12-04

Find more details about IRIDIUM 11 Satellite