2001-020A
GeoLITE is the geosynchronous lightweight technology experiment, an NRO experimental satellite. Launch by Boeing Delta II from CC in early 2001. The TRW-built T-310 satellite has a mass of 1870 kg, with a UHF comms payload from Hughes and a laser comms payload from Lincoln Lab. The new T-310 bus is based on the Rocsat/EOS-Common (STEP) satellite. Dry mass is 929 kg. Size is 3.0 x 1.8 x 1.8m with 8.8m span.
The satellite was assigned the designation USA 158 after launch.
The satellite carried a TRW TR-500 SCAT dual mono/bipropellant 40N hydrazine thruster, which was used to reach GEO in over a dozen orbit raising burns.
As well as the one-year laser comms experiment, GeoLITE hosted an `operational TDDS mission' with a planned lifetime of 9 years. TDDS is the TRAP (Tactical Related Applications) Data Dissemination System which `provides worldwide dissemination of high-interest ELINT, contact reports, and parametric information at the SECRET level.' GeoLITE carried a UHF transponder for the TDDS system (Crosslink, Spring 2005). TDDS was apparently also called IBS-S (Integrated Broadcast Service-Simplex).
The mission control for the lasercom experiment phase was at TRW/DSD in Virginia and the satellite was originally stationed at that longitude. For the TDDS phase it was drifted to another location (possibly the Indian Ocean).
| GeoLITE | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 2001 May 18 | 1745:00 | Launch by Delta 7925-9.5 | CC SLC17B |
| SRM 1-6 sep | |||
| SRM 7-9 sep | |||
| MECO | |||
| St 1 sep | |||
| St 2 SES-1 | |||
| 1750 | Fairing sep | ||
| 1755:32 | T+10:32 SECO-1 | ||
| 1806:37 | T+21:37 SES-2 69s | ||
| 1807:46 | T+23m SECO-2 | 187 x 2011 x 24.7 (UN) | |
| 1809 | T+24m St 2 sep | ||
| 1809:30 | T+24:30 TES | ||
| 1811 | T+26 TECO | 187 x 35800? x 26.5 | |
| 1815 | Yo-yo despin | ||
| 1815:31 | T+30:31m St 3 sep | ||
| 2001 May 20? | AKM burn | ||
| 2010 Jan 1 | 1436.12 35653 x 35920 x 3.0 GEO 99.9E | ||
No comments:
Post a Comment