ADCS Policy

Overall: PASS

• Mission pointing mode: deep_space_astronomy
• Released sun keep-out: 85 to 135 deg boresight-Sun
• Released total pointing requirement: 3.000 arcsec RSS

Sensor complement

• star_tracker_pair: star_tracker, 2 unit(s), 14.0 W total, 7.0 kg total
• imu_pair: inertial_measurement_unit, 2 unit(s), 8.0 W total, 3.0 kg total
• coarse_sun_sensor_ring: coarse_sun_sensor, 8 unit(s), 2.4 W total, 0.8 kg total
• magnetometer_pair: magnetometer, 2 unit(s), 1.0 W total, 0.4 kg total

Actuator complement

• reaction_wheel_cluster: tetrahedral_reaction_wheel_cluster, 4 unit(s), 60.0 W total, 20.0 kg total
• magnetorquer_triad: orthogonal_magnetorquer_rods, 3 unit(s), 14.0 W total, 5.0 kg total

Pointing closure

• Bus jitter RSS: 0.583 arcsec against 1.000 arcsec allocation
• Control residual RSS: 0.287 arcsec against 0.400 arcsec allocation
• Metrology/calibration RSS: 0.156 arcsec against 0.200 arcsec allocation
• Structural flexure allocation carried forward: 0.600 arcsec
• Thermoelastic drift allocation carried forward: 0.400 arcsec
• Total science pointing RSS: 0.983 arcsec

Authority and unloading

• Total ADCS power: 103.400 W
• Total ADCS mass: 39.200 kg
• Available wheel-axis momentum: 27.713 N m s
• Combined slew plus disturbance momentum requirement: 10.246 N m s
• Total steady disturbance torque: 0.001103 N m
• Available magnetorquer unload torque: 0.012500 N m
• Estimated dump duration: 79.383 s

Checks