Package org.jastronomy.jsofa
Class JSOFA.Astrom
- java.lang.Object
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- org.jastronomy.jsofa.JSOFA.Astrom
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- Enclosing class:
- JSOFA
public static class JSOFA.Astrom extends java.lang.Object
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
Fields Modifier and Type Field Description double
along
adjusted longitude (radians)double
bm1
sqrt(1-|v|^2): reciprocal of Lorenz factordouble[][]
bpn
bias-precession-nutation matrix [3][3]double
cphi
cosine of geodetic latitudedouble
diurab
magnitude of diurnal aberration vectordouble[]
eb
SSB to observer (vector, au) [3]double[]
eh
Sun to observer (unit vector)[3]double
em
distance from Sun to observer (au)double
eral
"local" Earth rotation angle (radians)double
phi
geodetic latitude (radians)double
pmt
PM time interval (SSB, Julian years)double
refa
refraction constant A (radians)double
refb
refraction constant B (radians)double
sphi
sine of geodetic latitudedouble[]
v
barycentric observer velocity (vector, c)[3]double
xpl
polar motion xp wrt local meridian (radians)double
ypl
polar motion yp wrt local meridian (radians)
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Constructor Summary
Constructors Constructor Description Astrom()
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Field Detail
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pmt
public double pmt
PM time interval (SSB, Julian years)
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eb
public double[] eb
SSB to observer (vector, au) [3]
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eh
public double[] eh
Sun to observer (unit vector)[3]
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em
public double em
distance from Sun to observer (au)
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v
public double[] v
barycentric observer velocity (vector, c)[3]
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bm1
public double bm1
sqrt(1-|v|^2): reciprocal of Lorenz factor
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bpn
public double[][] bpn
bias-precession-nutation matrix [3][3]
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along
public double along
adjusted longitude (radians)
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phi
public double phi
geodetic latitude (radians)
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xpl
public double xpl
polar motion xp wrt local meridian (radians)
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ypl
public double ypl
polar motion yp wrt local meridian (radians)
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sphi
public double sphi
sine of geodetic latitude
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cphi
public double cphi
cosine of geodetic latitude
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diurab
public double diurab
magnitude of diurnal aberration vector
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eral
public double eral
"local" Earth rotation angle (radians)
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refa
public double refa
refraction constant A (radians)
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refb
public double refb
refraction constant B (radians)
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