Attitude Determination System
ATIITUDE DETERMINATION SYSTEM COMPONENTS:
| Control and syncronization unit (CSU), pcs. Star tracker (ST), pcs. |
1 or 2 2 to 4 |
ONBOARD UNIT PLACEMENT REQUIREMENTS
- Star trackers shoud be mounted on a thermally-stabilized common framework.
- ST to CSU maximal cable length - 3 meters.
- The Sun should be off the FOV of minimum two STs in any operation mode orientation.
Specifications
| Number of star trackers | 3 |
| Number of control and syncronization units | 2 |
| 3-axis attitude determination error, arcsec | 1 |
| Data lag, ms, max | 100 |
| Angular speed measurement error, arcsec | 1 |
| Minimal angular distance between Sun and star tracker LOS, º | 30 |
