Navigation Service Performance Comparison for an Elevation Mask of 20°, with Lunar UERE σUERE,LNCSS = 3.86 m The columns of mean performance denote the mean RMSE across the array of grid points, whereas the columns of max performance denote the RMSE of the worst-case grid point, for each case study. See Section 3.2.3) for details on how the performance metrics and design criteria are computed.

LNCSS Case Study (# sats)Performance metrics: At worst user grid point averaged across timeDesign criteria: Avg across user grid points
Availability (%)Failure Tolerance (%)Coverage (%)GDOPHorizontal Position RMSE (m)Vertical Position RMSE (m)Receiver Timing RMSE (μs)
A (8)77.5154.1153.29246.2414.754740.2485.3625620.850.1956.94
B (12)10010085.116.194.6112.3017.1455.170.040.12
C (16)1001001007.244.127.0414.0629.880.030.07