Types and constants
Types
ERFA.Ellipsoid — TypeConstants
ERFA.AULT — ConstantAULTLight time for 1 au (s)
ERFA.CMPS — ConstantCMPSSpeed of light (m/s)
ERFA.D2PI — ConstantD2PI2Pi
ERFA.DAS2R — ConstantDAS2RArcseconds to radians
ERFA.DAU — ConstantDAUAstronomical unit (m, IAU 2012)
ERFA.DAYSEC — ConstantDAYSECSeconds per day
ERFA.DC — ConstantDCSpeed of light (au per day)
ERFA.DD2R — ConstantDD2RDegrees to radians
ERFA.DJ00 — ConstantDJ00Reference epoch (J2000.0), Julian Date
ERFA.DJC — ConstantDJCDays per Julian century
ERFA.DJM — ConstantDJMDays per Julian millennium
ERFA.DJM0 — ConstantDJM0Julian Date of Modified Julian Date zero
ERFA.DJM00 — ConstantDJM00Reference epoch (J2000.0), Modified Julian Date
ERFA.DJM77 — ConstantDJM771977 Jan 1.0 as MJD
ERFA.DJY — ConstantDJYDays per Julian year
ERFA.DMAS2R — ConstantDMAS2RMilliarcseconds to radians
ERFA.DPI — ConstantDPIPi
ERFA.DR2AS — ConstantDR2ASRadians to arcseconds
ERFA.DR2D — ConstantDR2DRadians to degrees
ERFA.DS2R — ConstantDS2RSeconds of time to radians
ERFA.DTY — ConstantDTYLength of tropical year B1900 (days)
ERFA.ELB — ConstantL_BL_B = 1 - d(TDB)/d(TCB)
ERFA.ELG — ConstantELGL_G = 1 - d(TT)/d(TCG)
ERFA.GRS80 — ConstantGRS80Enum constant for the GRS80 reference ellipsoid
ERFA.SRS — ConstantSRSSchwarzschild radius of the Sun (au) = 2 * 1.32712440041e20 / (2.99792458e8)^2 / 1.49597870700e11
ERFA.TDB0 — ConstantTDB0TDB (s) at TAI 1977/1/1.0
ERFA.TTMTAI — ConstantTTMTAITT minus TAI (s)
ERFA.TURNAS — ConstantTURNASArcseconds in a full circle
ERFA.WGS72 — ConstantWGS72Enum constant for the WGS72 reference ellipsoid
ERFA.WGS84 — ConstantWGS84Enum constant for the WGS84 reference ellipsoid