SOFA Library Issue 2023-10-11 for ANSI C: Astronomy Library

Astronomy Library - Precession/Nutation/Polar Motion

This is the index page for the Precession/Nutation/Polar Motion section of the Astronomy Library for SOFA Library Issue 2023-10-11 for ANSI C. The Precession/Nutation/Polar Motion section includes the following routines:

Bi00	—	Frame bias components, IAU 2000
Bp00	—	Frame bias and precession matrices, IAU 2000
Bp06	—	Frame bias and precession matrices, IAU 2006
Bpn2xy	—	CIP XY given Bias-precession-nutation matrix
C2i00a	—	Celestial-to-intermediate matrix, IAU 2000A
C2i00b	—	Celestial-to-intermediate matrix, IAU 2000B
C2i06a	—	Celestial-to-intermediate matrix, IAU 2006/2000A
C2ibpn	—	Celestial-to-intermediate matrix given B-P-N
C2ixy	—	Celestial-to-intermediate matrix given CIP
C2ixys	—	Celestial-to-intermediate matrix given CIP and s
C2t00a	—	Celestial-to-terrestrial matrix, IAU 2000A
C2t00b	—	Celestial-to-terrestrial matrix, IAU 2000B
C2t06a	—	Celestial-to-terrestrial matrix, IAU 2006/2000A
C2tcio	—	Form CIO-based Celestial-to-terrestrial matrix
C2teqx	—	Celestial-to-terrestrial matrix, classical
C2tpe	—	Celestial-to-terrestrial matrix given nutation
C2txy	—	Celestial-to-terrestrial matrix given CIP
Eo06a	—	Equation of the origins, IAU 2006/2000A
Eors	—	Equation of the origins, given NPB matrix and s
Fw2m	—	Fukushima-Williams angles to r-matrix
Fw2xy	—	Fukushima-Williams angles to X,Y
Ltp	—	Long-term precession matrix
Ltpb	—	Long-term precession matrix, including ICRS frame bias
Ltpecl	—	Long-term precession of the ecliptic
Ltpequ	—	Long-term precession of the equator
Num00a	—	Nutation matrix, IAU 2000A
Num00b	—	Nutation matrix, IAU 2000B
Num06a	—	Nutation matrix, IAU 2006/2000A
Numat	—	Nutation matrix, generic
Nut00a	—	Nutation, IAU 2000A
Nut00b	—	Nutation, IAU 2000B
Nut06a	—	Nutation, IAU 2006/2000A
Nut80	—	Nutation, IAU 1980
Nutm80	—	Nutation matrix, IAU 1980
Obl06	—	Mean obliquity, IAU 2006
Obl80	—	Mean obliquity, IAU 1980
Pb06	—	Zeta, z, theta precession angles, IAU 2006, including bias
Pfw06	—	Bias-precession Fukushima-Williams angles, IAU 2006
Pmat00	—	Precession matrix (including frame bias), IAU 2000
Pmat06	—	Precession matrix (including frame bias), IAU 2006
Pmat76	—	Precession matrix, IAU 1976
Pn00	—	B,P,N matrices, IAU 2000, given nutation
Pn00a	—	B,P,N matrices, IAU 2000A
Pn00b	—	B,P,N matrices, IAU 2000B
Pn06	—	Bias precession nutation results, IAU 2006
Pn06a	—	Bias precession nutation results, IAU 2006/2000A
Pnm00a	—	Classical NPB matrix, IAU 2000A
Pnm00b	—	Classical NPB matrix, IAU 2000B
Pnm06a	—	Classical NPB matrix, IAU 2006/2000A
Pnm80	—	Precession/nutation matrix, IAU 1976/1980
P06e	—	Precession angles, IAU 2006, equinox based
Pom00	—	Polar-motion matrix, IAU 2000
Pr00	—	Adjustments to IAU 1976 precession, IAU 2000
Prec76	—	Precession, IAU 1976
S00	—	The CIO locator s, given X,Y, IAU 2000
S00a	—	The CIO locator s, IAU 2000A
S00b	—	The CIO locator s, IAU 2000B
S06	—	The CIO locator s, given X,Y, IAU 2006
S06a	—	The CIO locator s, IAU 2006/2000A
Sp00	—	The TIO locator s', IERS 2003
Xy06	—	CIP, IAU 2006/2000A, from series
Xys00a	—	CIP and s, IAU 2000A
Xys00b	—	CIP and s, IAU 2000B
Xys06a	—	CIP and s, IAU 2006/2000A