1990-015A
The Low-power Atmospheric Compensation Experiment (LACE) was built by NRL as part of SDIO's research program. The satellite was a 1.4 x 1.4 x 1.2m box with 4 panels, gravity gradient stabilized. It was to observe ground-based laser light to study ways of compensating for atmospheric distortion. However, reports indicated that by Jun 1990 little useful data had been obtained, and it was concluded that the laser reflectors were inefficient.
| LACE | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1990 Feb 14 | 1615:00 | Launch by Delta 6920-8 | CC LC17B |
| SRM 1-9 sep | |||
| T+4:24 MECO | |||
| T+4:38 Stage 1 sep | |||
| T+4:38 SES-1 | |||
| T+4:42 Fairing | |||
| 1625:34 | T+10:34 SECO-1 | 325 x 550? | |
| 1650:49 | T+35:49 SES-2 | ||
| 1651:00 | T+36:00 SECO-2 | ||
| 1656:40 | T+41:40 LOSAT-L LACE deployed | 530 x 549 x 43.1 | |
| 1733:47 | T+1:18:47 SES-3 | ||
| 1733:51 | T+1:18:51 SECO-3 | 387? x 531? x 43.1 | |
| 1755:05 | T+1:40:05 SES-4 | ||
| 1755:11 | T+1:40:11 SECO-4 | ||
| 1800:00 | T+1:45:00 LOSAT-R RME deployed | 457 x 478 x 43.1 | |
| 1822? | T+2:07 SES-5 evasive | ||
| 1824? | Depletion | 93.65 424 x 482 x 41.6 | |
| 1993 Feb 14 | end of ops | ||
Payload:
- 4s period tracking optical beacon light.
- 46m variable boom (leading) for gravity gradient and retroreflector
- 46m variable boom (trailing) for inertia control
- LACE Low-power Atmospheric Compensation Experiment
- SAS Sensor array subsystem: 210 visible/ir/phased sensors
- UVPI UV Plume Instrument ICCD cameras(2), 1950-3200A
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