Navigation Service Performance Comparison for an Elevation Mask of 5°, with Lunar UERE σUERE,LNCSS = 3.86 m The columns of mean performance denote the mean RMS error (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 | Design criteria: Avg across user grid points | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Availability (%) | Failure Tolerance (%) | Coverage (%) | GDOP | Horizontal Position RMSE (m) | Vertical Position RMSE (m) | Receiver Timing RMSE (μs) | ||||
| Mean | Max | Mean | Max | Mean | Max | |||||
| A (8) | 100 | 97.9 | 100 | 8.95 | 5.62 | 61.62 | 15.00 | 277.22 | 0.03 | 0.62 |
| B (12) | 100 | 100 | 100 | 5.51 | 3.84 | 5.67 | 10.15 | 18.16 | 0.02 | 0.04 |
| C (16) | 100 | 100 | 100 | 4.38 | 3.15 | 4.72 | 7.63 | 15.32 | 0.01 | 0.03 |