Satellite Tracking, Prediction and Informations about

Objects in the Sky

Search Tips
You can search by Satellite Name, Norad ID or any other keyword that it is included in satellite description.

You can search for object debris if you search by word DEB and for Rocket Bodies if you search by the keyword R/B country.

Good Luck

Track Random satellites:
SL-8 R/B

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)



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