# These are all from IS-GPS-200G unless otherwise noted SPEED_OF_LIGHT = 2.99792458e8 # m/s # Physical parameters of the Earth EARTH_GM = 3.986005e14 # m^3/s^2 (gravitational constant * mass of earth) EARTH_RADIUS = 6.3781e6 # m EARTH_ROTATION_RATE = 7.2921151467e-005 # rad/s (WGS84 earth rotation rate) # GPS system parameters: GPS_L1 = l1 = 1.57542e9 # Hz GPS_L2 = l2 = 1.22760e9 # Hz GPS_L5 = l5 = 1.17645e9 # Hz Also E5 #GLONASS system parameters #TODO this is old convention GLONASS_L1 = 1.602e9 GLONASS_L1_DELTA = 0.5625e6 GLONASS_L2 = 1.246e9 GLONASS_L2_DELTA = 0.4375e6 GLONASS_L5 = 1.201e9 GLONASS_L5_DELTA = 0.4375e6 #Galileo system parameters: # Has additional frequencies on E6 #Source RINEX 2.11 document GALILEO_E5B = 1.207140e9 # Hz GALILEO_E5AB = 1.191795e9 # Hz GALILEO_E6 = 1.27875e9 # Hz SECS_IN_MIN = 60 SECS_IN_HR = 60*SECS_IN_MIN SECS_IN_DAY = 24*SECS_IN_HR SECS_IN_WEEK = 7*SECS_IN_DAY SECS_IN_YEAR = 365*SECS_IN_DAY