Package org.jastronomy.jsofa

Class JSOFA.Astrom

java.lang.Object
org.jastronomy.jsofa.JSOFA.Astrom
Enclosing class:
JSOFA
public static class JSOFA.Astrom extends 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

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    double
    along
    adjusted longitude (radians)
    double
    bm1
    sqrt(1-|v|^2): reciprocal of Lorenz factor
    double[][]
    bpn
    bias-precession-nutation matrix [3][3]
    double
    cphi
    cosine of geodetic latitude
    double
    diurab
    magnitude of diurnal aberration vector
    double[]
    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 latitude
    double[]
    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)

  • Constructor Summary

    Constructors
    Constructor
    Description
    Astrom()
     

  • Method Summary

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Field Details

    • pmt

      public double pmt
      PM time interval (SSB, Julian years)

    • eb

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

    • eh

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

    • em

      public double em
      distance from Sun to observer (au)

    • v

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

    • bm1

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

    • bpn

      public double[][] bpn
      bias-precession-nutation matrix [3][3]

    • along

      public double along
      adjusted longitude (radians)

    • phi

      public double phi
      geodetic latitude (radians)

    • xpl

      public double xpl
      polar motion xp wrt local meridian (radians)

    • ypl

      public double ypl
      polar motion yp wrt local meridian (radians)

    • sphi

      public double sphi
      sine of geodetic latitude

    • cphi

      public double cphi
      cosine of geodetic latitude

    • diurab

      public double diurab
      magnitude of diurnal aberration vector

    • eral

      public double eral
      "local" Earth rotation angle (radians)

    • refa

      public double refa
      refraction constant A (radians)

    • refb

      public double refb
      refraction constant B (radians)

  • Constructor Details

    • Astrom

      public Astrom()