TABLE 11

Error budget of the maximum steady-state true navigation error 1σ std. deviation. For a non-rotating s/c in Polar LEO 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 Magnitude84.07Accelerometer Position - 71.16Accelerometer Error - 41.94Translational Process Noise - 10.79m
Spacecraft Velocity Magnitude0.09Accelerometer Position - 0.07Accelerometer Error - 0.04Translational Process Noise - 0.01m/s
Spacecraft Attitude Magnitude1.0178 × 10−5Star Camera Noise - 7.7697 × 10−6Rotational Process Noise - 4.4302 × 10−6Accelerometer Position - 2.9721 × 10−6rad
Spacecraft Angular Velocity Magnitude1.5876 × 10−7Rotational Process Noise - 1.3008 × 10−7Star Camera Noise - 6.3519 × 10−8Accelerometer Position - 4.2393 × 10−8rad/s