In Depth Tutorials and Information

Table of Constants (GPS)

Symbol	Value	Unit	Explanation	cf.
	6378137	m	Semimajor axis of WGS-84	§2.1
	1 / 298.2572236		Flattening factor of WGS-84	§2.1
	6378136	m	Semimajor axis of PZ-90	§2.1
	1 / 298.2578393		Flattening factor of PZ-90	§2.1
	6378136.54	m	Semimajor axis of ITRF-96	§2.1
	1/298.25645		Flattening factor of ITRF-96	§2.1
	84381 ."412		Obliquity of the ecliptic at J2000.0	§2.4
	2444244.5		Julian Date of GPS standard epoch (1980 Jan.6,0^h)	§2.6
	2451545.0		Julian Date of 2000 January 1,12^h	§2.6
	6.67259 e-11		Constant of gravitation	§3.1
	3.986004418 el 4		Geocentric gravitational constant	§3.1
	7.292115 e-5		Nominal mean angular velocity of the Earth	§3.3
	299792458		Speed of light	§4.1
	1.327124 e20		Heliocentric gravitational constant	§5.4
			Gravitational constant of the Moon	§5.4
	0.0123000345		Moon-Earth mass ratio	§5.4
	0.6078,0.292		Love number	§5.4
	0.0847		Shida number	§5.4
	10.23		Fundamental frequency of GPS	§8.5
			First carrier frequency of GPS	§8.5
	19.029		Wavelength off,	§8.5
			Second carrier frequency of GPS	§8.5
	24.421		Wavelength off₂	§8.5
	115f₀		Third carrier frequency of GPS	§8.5
	25.482		Wavelength of f_s	§8.5
			Luminosity of the Sun	§11.2
	1.0000002 AU		Semimajor axis of the orbit of the Sun	§11.2
	149597870691		Astronomical units	§11.2
	384401000		Semimajor axis of the orbit of the Moon	§11.2
	1602		First carrier frequency of GLONASS	§1.2
	0.5625		First carrier frequency interval of GLONASS	§1.2
	1246		Second carrier frequency of GLONASS	§1.2
	0.4375		Second carrier frequency interval of GLONASS	§1.2