Individual Error Components Considered for the Lunar UERE Formulation

LNSS segmentError components (based on GPS UERE)Lunar UERE (based on 1σ error)
Space/ControlBroadcast clockσclk, LNSS
Differential group delayσgd, LNSS
Broadcast ephemerisσeph, LNSS
UserIonospheric delay-
Tropospheric delay-
Receiver noise and resolutionσrec, LNSS
Multipath effects-
  • Note: This includes errors due to the broadcast clock, differential group delay, broadcast ephemeris, and receiver noise and resolution; other components, namely multipath effects, ionospheric delays, and tropospheric delays are considered to be negligible for the lunar environment.