TABLE 9

Error budget of the maximum steady-state true navigation error 1σ std. deviation. For a non-rotating s/c in LEO 50 deg. inc. orbit, with 3 accel., 0.5 m baseline length, large time constant, & high cost model

State nameTotal steady-state true navigation error 1σError source 1Error source 2Error source 3Units
Spacecraft Position Magnitude105.36Accelerometer Position - 76.20Star Camera Noise - 53.89Accelerometer Error - 45.34m
Spacecraft Velocity Magnitude0.11Accelerometer Position - 0.08Star Camera Noise - 0.06Accelerometer Error - 0.05m/s
Spacecraft Attitude Magnitude4.032 × 10−5Star Camera Noise - 3.137 × 10−5Rotational Process Noise - 1.6535 × 10−5Accelerometer Position - 1.5211 × 10−5rad
Spacecraft Angular Velocity Magnitude2.0629 × 10−7Rotational Process Noise - 1.6269 × 10−7Accelerometer Position - 7.4626 × 10−8Star Camera Noise - 7.4081 × 10−8rad/s