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SOFA Methods

The SOFA type exposes the following members.

Methods
  Name Description
Public method Af2a
Convert degrees, arcminutes, arcseconds to radians.
Public method Anp
Normalize angle into the range 0 <= a < 2pi.
Public method CelestialToIntermediate
Transform ICRS star data, epoch J2000.0, to CIRS using the SOFA Atci13 function.
Public method CelestialToObserved
ICRS RA,Dec to observed place using the SOFA Atco13 function.
Public method Dispose
Cleans up the SOFA object
Public method Dtf2d
Encode date and time fields into 2-part Julian Date (or in the case of UTC a quasi-JD form that includes special provision for leap seconds).
Public method Eo06a
Equation of the origins, IAU 2006 precession and IAU 2000A nutation.
Public method Static member FreeLibrary
Unloads a library DLL
Public method IntermediateToCelestial
Transform star RA,Dec from geocentric CIRS to ICRS astrometric using the SOFA Atic13 function.
Public method IntermediateToObserved
CIRS RA,Dec to observed place using the SOFA Atio13 funciton.
Public method Static member LoadLibrary
Loads a library DLL
Public method ObservedToCelestial
Observed place at a groundbased site to to ICRS astrometric RA,Dec using the SOFA Atoc13 function.
Public method ObservedToIntermediate
Observed place to CIRS using the SOFA Atoi13 function.
Public method SofaIssueDate
Release date of the SOFA issue currently used by this component.
Public method SofaReleaseNumber
Major number of the SOFA issue currently used by this component.
Public method SofaRevisionDate
Release date of the revision to the SOFA Issue that is actually being used by this component.
Public method TaiTt
Time scale transformation: International Atomic Time, TAI, to Terrestrial Time, TT.
Public method TaiUtc
Time scale transformation: International Atomic Time, TAI, to Coordinated Universal Time, UTC.
Public method Tf2a
Convert hours, minutes, seconds to radians.
Public method TtTai
Time scale transformation: Terrestrial Time, TT, to International Atomic Time, TAI.
Public method UtcTai
Time scale transformation: Coordinated Universal Time, UTC, to International Atomic Time, TAI.
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See Also