Star-independent astrometry parameters (Vectors eb, eh, em and v are all with respect to BCRS axes.) More...

#include <sofam.h>

Data Fields
double	pmt
	PM time interval (SSB, Julian years) More...

double	eb [3]
	SSB to observer (vector, au) More...

double	eh [3]
	Sun to observer (unit vector) More...

double	em
	distance from Sun to observer (au) More...

double	v [3]
	barycentric observer velocity (vector, c) More...

double	bm1
	sqrt(1-\|v\|^2): reciprocal of Lorenz factor More...

double	bpn [3][3]
	bias-precession-nutation matrix More...

double	along
	longitude + s' + dERA(DUT) (radians) More...

double	phi
	geodetic latitude (radians) More...

double	xpl
	polar motion xp wrt local meridian (radians) More...

double	ypl
	polar motion yp wrt local meridian (radians) More...

double	sphi
	sine of geodetic latitude More...

double	cphi
	cosine of geodetic latitude More...

double	diurab
	magnitude of diurnal aberration vector More...

double	eral
	"local" Earth rotation angle (radians) More...

double	refa
	refraction constant A (radians) More...

double	refb
	refraction constant B (radians) More...

Detailed Description

Star-independent astrometry parameters (Vectors eb, eh, em and v are all with respect to BCRS axes.)

Field Documentation

◆ along

iauASTROM::along

longitude + s' + dERA(DUT) (radians)

◆ bm1

iauASTROM::bm1

sqrt(1-|v|^2): reciprocal of Lorenz factor

◆ bpn

iauASTROM::bpn

bias-precession-nutation matrix

◆ cphi

iauASTROM::cphi

cosine of geodetic latitude

◆ diurab

iauASTROM::diurab

magnitude of diurnal aberration vector

◆ eb

iauASTROM::eb

SSB to observer (vector, au)

◆ eh

iauASTROM::eh

Sun to observer (unit vector)

◆ em

iauASTROM::em

distance from Sun to observer (au)

◆ eral

iauASTROM::eral

"local" Earth rotation angle (radians)

◆ phi

iauASTROM::phi

geodetic latitude (radians)

◆ pmt

iauASTROM::pmt

PM time interval (SSB, Julian years)

◆ refa

iauASTROM::refa

refraction constant A (radians)

◆ refb

iauASTROM::refb

refraction constant B (radians)

◆ sphi

iauASTROM::sphi

sine of geodetic latitude

◆ v

iauASTROM::v

barycentric observer velocity (vector, c)

◆ xpl

iauASTROM::xpl

polar motion xp wrt local meridian (radians)

◆ ypl

iauASTROM::ypl

polar motion yp wrt local meridian (radians)

The documentation for this struct was generated from the following files:

sofam.h
/home/nirva/GEIRS/trunk-r794M-16/extern/sofa/sofa.dox

Data Fields