1999-068A
Terra (EOS AM-1) was the first large EOS satellite. Earth Observing System AM-1 is built by LMT (formerly Astro Space) Valley Forge. Terra is the first NPOESS satellite. Launch of the spacecraft into 705 km 98.2 deg 10:30am SSO is by ILS Atlas 2AS AC-141 from V SLC3E in 1998 Dec. The stretched 14' EPF fairing was used for the first time. Launch mass 4854 kg full, with 328 kg hydrazine.Total 4765 kg at separation.
Control will be from the GSFC EOS Control Center. Launch was delayed due to problems with the ground ops software. 6.8m long 3.5m dia. box + 10m solar array. Box + 1 panel; bus has heritage from UARS.
The plan was to fly Terra in the same orbit as Landsat 7, but that was delayed when the first orbit raise burn was aborted due to a roll problem.
| Terra | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1999 Dec 18 | 1857:39 | Launch by Atlas IIAS | V SLC3E |
| T+00:59 SRB 3-4 burn | |||
| T+1:44 SRB1-2 sep | |||
| T+1:58 SRB3-4 sep | |||
| T+2:46 BECO | |||
| T+2:49 Booster sep | |||
| T+3:11 Fairing | |||
| T+4:42 Atlas MECO | |||
| T+4:44 Atlas sep | |||
| 1902:40 | T+5:01 Centaur MES | ||
| 1908:49 | T+11:10 Centaur MECO | 98.01 653 x 673 x 98.3 | |
| 1911:19 | T+13:40 Centaur sep | 98.26 655 x 695 x 98.3 | |
| 1925 | Centaur depletion | 355 x 654 x 98.3 | |
| 1999 Dec 18 | 98.14 654 x 684 x 98.2 | ||
| 2000 Jan 11 | AOCS-1 burn | ||
| 2000 Jan 31 | 98.16 655 x 686 x 98.2 | ||
| 2000 Feb 17 | 98.48 684 x 687 x 98.2 | ||
| 2000 Feb 23 | Final AOCS-8 burn | ||
| 2000 Mar 30 | 98.83 701 x 703 x 98.2 | ||
| 2000 May 25 | 98.83 699 x 705 x 98.2 | ||
| 2002 Aug 4 | 98.82 701 x 703 x 98.20 | ||
| 2003 Jul 6 | 98.82 701 x 703 x 98.18 | ||
| 2005 Oct 21 | small collision avoidance burn | ||
| 2007 Jun 22 | COLA to avoid FY1C deb, 1.3 km raise | ||
Payload:
- CERES Clouds and the Earth's Radiant Energy System
- MODIS-N Moderate Res Imaging Spectrometer
- MISR Multi Angle Imaging Spectroradiometer
- ASTER Adv Spaceborne Thermal Emision and Reflection Radiometer
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