# Uses of Class
org.jastronomy.jsofa.JSOFA.Astrom

## Uses of JSOFA.Astrom in org.jastronomy.jsofa

Methods in org.jastronomy.jsofa with parameters of type JSOFA.Astrom
Modifier and Type
Method
Description
`static void`
JSOFA.`jauApcg(double date1, double date2, double[][] ebpv, double[] ehp, JSOFA.Astrom astrom)`
For a geocentric observer, prepare star-independent astrometry parameters for transformations between ICRS and GCRS coordinates.
`static void`
JSOFA.`jauApcg13(double date1, double date2, JSOFA.Astrom astrom)`
For a geocentric observer, prepare star-independent astrometry parameters for transformations between ICRS and GCRS coordinates.
`static void`
JSOFA.`jauApci(double date1, double date2, double[][] ebpv, double[] ehp, double x, double y, double s, JSOFA.Astrom astrom)`
For a terrestrial observer, prepare star-independent astrometry parameters for transformations between ICRS and geocentric CIRS coordinates.
`static double`
JSOFA.`jauApci13(double date1, double date2, JSOFA.Astrom astrom)`
For a terrestrial observer, prepare star-independent astrometry parameters for transformations between ICRS and geocentric CIRS coordinates.
`static void`
JSOFA.`jauApco(double date1, double date2, double[][] ebpv, double[] ehp, double x, double y, double s, double theta, double elong, double phi, double hm, double xp, double yp, double sp, double refa, double refb, JSOFA.Astrom astrom)`
For a terrestrial observer, prepare star-independent astrometry parameters for transformations between ICRS and observed coordinates.
`static double`
JSOFA.`jauApco13(double utc1, double utc2, double dut1, double elong, double phi, double hm, double xp, double yp, double phpa, double tc, double rh, double wl, JSOFA.Astrom astrom)`
For a terrestrial observer, prepare star-independent astrometry parameters for transformations between ICRS and observed coordinates.
`static void`
JSOFA.`jauApcs(double date1, double date2, double[][] pv, double[][] ebpv, double[] ehp, JSOFA.Astrom astrom)`
For an observer whose geocentric position and velocity are known, prepare star-independent astrometry parameters for transformations between ICRS and GCRS.
`static void`
JSOFA.`jauApcs13(double date1, double date2, double[][] pv, JSOFA.Astrom astrom)`
For an observer whose geocentric position and velocity are known, prepare star-independent astrometry parameters for transformations between ICRS and GCRS.
`static void`
JSOFA.`jauAper(double theta, JSOFA.Astrom astrom)`
In the star-independent astrometry parameters, update only the Earth rotation angle, supplied by the caller explicitly.
`static void`
JSOFA.`jauAper13(double ut11, double ut12, JSOFA.Astrom astrom)`
In the star-independent astrometry parameters, update only the Earth rotation angle.
`static void`
JSOFA.`jauApio(double sp, double theta, double elong, double phi, double hm, double xp, double yp, double refa, double refb, JSOFA.Astrom astrom)`
For a terrestrial observer, prepare star-independent astrometry parameters for transformations between CIRS and observed coordinates.
`static void`
JSOFA.`jauApio13(double utc1, double utc2, double dut1, double elong, double phi, double hm, double xp, double yp, double phpa, double tc, double rh, double wl, JSOFA.Astrom astrom)`
For a terrestrial observer, prepare star-independent astrometry parameters for transformations between CIRS and observed coordinates.
`static JSOFA.SphericalCoordinate`
JSOFA.`jauAtccq(double rc, double dc, double pr, double pd, double px, double rv, JSOFA.Astrom astrom)`
Quick transformation of a star's ICRS catalog entry (epoch J2000.0) into ICRS astrometric place, given precomputed star-independent astrometry parameters.
`static JSOFA.SphericalCoordinate`
JSOFA.`jauAtciq(double rc, double dc, double pr, double pd, double px, double rv, JSOFA.Astrom astrom)`
Quick ICRS, epoch J2000.0, to CIRS transformation, given precomputed star-independent astrometry parameters.
`static JSOFA.SphericalCoordinate`
JSOFA.`jauAtciqn(double rc, double dc, double pr, double pd, double px, double rv, JSOFA.Astrom astrom, int n, JSOFA.Ldbody[] b)`
Quick ICRS, epoch J2000.0, to CIRS transformation, given precomputed star-independent astrometry parameters plus a list of light- deflecting bodies.
`static JSOFA.SphericalCoordinate`
JSOFA.`jauAtciqz(double rc, double dc, JSOFA.Astrom astrom)`
Quick ICRS to CIRS transformation, given precomputed star- independent astrometry parameters, and assuming zero parallax and proper motion.
`static JSOFA.SphericalCoordinate`
JSOFA.`jauAticq(double ri, double di, JSOFA.Astrom astrom)`
Quick CIRS RA,Dec to ICRS astrometric place, given the star- independent astrometry parameters.
`static JSOFA.SphericalCoordinate`
JSOFA.`jauAticqn(double ri, double di, JSOFA.Astrom astrom, int n, JSOFA.Ldbody[] b)`
Quick CIRS to ICRS astrometric place transformation, given the star- independent astrometry parameters plus a list of light-deflecting bodies.
`static JSOFA.ObservedPosition`
JSOFA.`jauAtioq(double ri, double di, JSOFA.Astrom astrom)`
Quick CIRS to observed place transformation.
`static JSOFA.SphericalCoordinate`
JSOFA.`jauAtoiq(String type, double ob1, double ob2, JSOFA.Astrom astrom)`
Quick observed place to CIRS, given the star-independent astrometry parameters.