1999-070B
ACRIMSAT is managed by JPL as part of the EOS. It will use an Orbital Sciences/Dulles Ministar spin-stabilized bus. ACRIMSAT will observe the absolute solar flux, and uses an instrument originally intended for the scaled-back EOS Chemistry-1. Launch was 1999 Dec by Taurus. Mass 109 kg Size is 0.69 x 0.77m. Shape is hexagon + 4 panels. Span 2.2m. ACRIM I flew on SMM, and ACRIM II flew on UARS.
ACRIMSAT is an Earth Science (EOS) Program. Control is at the JPL Table Mountain Observatory (TMO) ground station, Wrightwood, California.
Initially there were attitude control problems; a software error meant that ACRIMSAT's spin axis was 16 deg away from the sun. ACRIMSAT started science operations in Mar 2000.
| ACRIMSAT | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1999 Dec 21 | 0715 | Launch by Taurus | V 576E |
| T+1:21 St 0 sep | |||
| T+2:46 St 1 sep | |||
| T+2:53 Fairing | |||
| T+4:07? St 2 burnout | |||
| T+10:23 St 2 sep, | -3152 x 675 x 98.1 | ||
| T+10:34 St 3 burn | |||
| T+11:46 St 3 burnout | |||
| T+13:29 Kompsat sep | 98.66 691 x 698 x 98.1 | ||
| T+14:39 APC Forward Section sep | 98.65 690 x 697 x 98.1 | ||
| T+16:06 ACRIMSAT sep | 98.63 690 x 696 x 98.1 | ||
| T+16:14 St 3 CCAM burn | |||
| T+19:24 St 3 CCAM stop | |||
| T+40:03 RCS depletion | 99.02 678 x 726 x 98.3 | ||
| Kompsat orbit | 99.02 693 x 729 x 98.3 | ||
| 2005 May | Primary mission complete | ||
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