Package org.jastronomy.jsofa
Class JSOFA.Astrom
java.lang.Object
org.jastronomy.jsofa.JSOFA.Astrom
- Enclosing class:
JSOFA
Star-independent astrometry parameters.
(Vectors eb, eh, em and v are all with respect to BCRS axes.)
- Since:
- 20131202
- Author:
- Paul Harrison (paul.harrison@manchester.ac.uk) 26 Mar 2014
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Field Summary
FieldsModifier and TypeFieldDescriptiondouble
adjusted longitude (radians)double
sqrt(1-|v|^2): reciprocal of Lorenz factordouble[][]
bias-precession-nutation matrix [3][3]double
cosine of geodetic latitudedouble
magnitude of diurnal aberration vectordouble[]
SSB to observer (vector, au) [3]double[]
Sun to observer (unit vector)[3]double
distance from Sun to observer (au)double
"local" Earth rotation angle (radians)double
geodetic latitude (radians)double
PM time interval (SSB, Julian years)double
refraction constant A (radians)double
refraction constant B (radians)double
sine of geodetic latitudedouble[]
barycentric observer velocity (vector, c)[3]double
polar motion xp wrt local meridian (radians)double
polar motion yp wrt local meridian (radians) -
Constructor Summary
Constructors -
Method Summary
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Field Details
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pmt
public double pmtPM time interval (SSB, Julian years) -
eb
public double[] ebSSB to observer (vector, au) [3] -
eh
public double[] ehSun to observer (unit vector)[3] -
em
public double emdistance from Sun to observer (au) -
v
public double[] vbarycentric observer velocity (vector, c)[3] -
bm1
public double bm1sqrt(1-|v|^2): reciprocal of Lorenz factor -
bpn
public double[][] bpnbias-precession-nutation matrix [3][3] -
along
public double alongadjusted longitude (radians) -
phi
public double phigeodetic latitude (radians) -
xpl
public double xplpolar motion xp wrt local meridian (radians) -
ypl
public double yplpolar motion yp wrt local meridian (radians) -
sphi
public double sphisine of geodetic latitude -
cphi
public double cphicosine of geodetic latitude -
diurab
public double diurabmagnitude of diurnal aberration vector -
eral
public double eral"local" Earth rotation angle (radians) -
refa
public double refarefraction constant A (radians) -
refb
public double refbrefraction constant B (radians)
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Constructor Details
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Astrom
public Astrom()
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