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#ifndef SOFAMHDEF
#define SOFAMHDEF
/*
** - - - - - - - -
** s o f a m . h
** - - - - - - - -
**
** Macros used by SOFA library.
**
** This file is part of the International Astronomical Union's
** SOFA (Standards Of Fundamental Astronomy) software collection.
**
** Please note that the constants defined below are to be used only in
** the context of the SOFA software, and have no other official IAU
** status. In addition, self consistency is not guaranteed.
**
** This revision: 2020 June 16
**
** SOFA release 2020-07-21
**
** Copyright (C) 2020 IAU SOFA Board. See notes at end.
*/
/* Star-independent astrometry parameters */
typedef struct {
double pmt; /* PM time interval (SSB, Julian years) */
double eb[3]; /* SSB to observer (vector, au) */
double eh[3]; /* Sun to observer (unit vector) */
double em; /* distance from Sun to observer (au) */
double v[3]; /* barycentric observer velocity (vector, c) */
double bm1; /* sqrt(1-|v|^2): reciprocal of Lorenz factor */
double bpn[3][3]; /* bias-precession-nutation matrix */
double along; /* longitude + s' + dERA(DUT) (radians) */
double phi; /* geodetic latitude (radians) */
double xpl; /* polar motion xp wrt local meridian (radians) */
double ypl; /* polar motion yp wrt local meridian (radians) */
double sphi; /* sine of geodetic latitude */
double cphi; /* cosine of geodetic latitude */
double diurab; /* magnitude of diurnal aberration vector */
double eral; /* "local" Earth rotation angle (radians) */
double refa; /* refraction constant A (radians) */
double refb; /* refraction constant B (radians) */
} iauASTROM;
/* (Vectors eb, eh, em and v are all with respect to BCRS axes.) */
/* Body parameters for light deflection */
typedef struct {
double bm; /* mass of the body (solar masses) */
double dl; /* deflection limiter (radians^2/2) */
double pv[2][3]; /* barycentric PV of the body (au, au/day) */
} iauLDBODY;
/* Pi */
#define DPI (3.141592653589793238462643)
/* 2Pi */
#define D2PI (6.283185307179586476925287)
/* Radians to degrees */
#define DR2D (57.29577951308232087679815)
/* Degrees to radians */
#define DD2R (1.745329251994329576923691e-2)
/* Radians to arcseconds */
#define DR2AS (206264.8062470963551564734)
/* Arcseconds to radians */
#define DAS2R (4.848136811095359935899141e-6)
/* Seconds of time to radians */
#define DS2R (7.272205216643039903848712e-5)
/* Arcseconds in a full circle */
#define TURNAS (1296000.0)
/* Milliarcseconds to radians */
#define DMAS2R (DAS2R / 1e3)
/* Length of tropical year B1900 (days) */
#define DTY (365.242198781)
/* Seconds per day. */
#define DAYSEC (86400.0)
/* Days per Julian year */
#define DJY (365.25)
/* Days per Julian century */
#define DJC (36525.0)
/* Days per Julian millennium */
#define DJM (365250.0)
/* Reference epoch (J2000.0), Julian Date */
#define DJ00 (2451545.0)
/* Julian Date of Modified Julian Date zero */
#define DJM0 (2400000.5)
/* Reference epoch (J2000.0), Modified Julian Date */
#define DJM00 (51544.5)
/* 1977 Jan 1.0 as MJD */
#define DJM77 (43144.0)
/* TT minus TAI (s) */
#define TTMTAI (32.184)
/* Astronomical unit (m, IAU 2012) */
#define DAU (149597870.7e3)
/* Speed of light (m/s) */
#define CMPS 299792458.0
/* Light time for 1 au (s) */
#define AULT (DAU/CMPS)
/* Speed of light (au per day) */
#define DC (DAYSEC/AULT)
/* L_G = 1 - d(TT)/d(TCG) */
#define ELG (6.969290134e-10)
/* L_B = 1 - d(TDB)/d(TCB), and TDB (s) at TAI 1977/1/1.0 */
#define ELB (1.550519768e-8)
#define TDB0 (-6.55e-5)
/* Schwarzschild radius of the Sun (au) */
/* = 2 * 1.32712440041e20 / (2.99792458e8)^2 / 1.49597870700e11 */
#define SRS 1.97412574336e-8
/* dint(A) - truncate to nearest whole number towards zero (double) */
#define dint(A) ((A)<0.0?ceil(A):floor(A))
/* dnint(A) - round to nearest whole number (double) */
#define dnint(A) (fabs(A)<0.5?0.0\
:((A)<0.0?ceil((A)-0.5):floor((A)+0.5)))
/* dsign(A,B) - magnitude of A with sign of B (double) */
#define dsign(A,B) ((B)<0.0?-fabs(A):fabs(A))
/* max(A,B) - larger (most +ve) of two numbers (generic) */
#define gmax(A,B) (((A)>(B))?(A):(B))
/* min(A,B) - smaller (least +ve) of two numbers (generic) */
#define gmin(A,B) (((A)<(B))?(A):(B))
/* Reference ellipsoids */
#define WGS84 1
#define GRS80 2
#define WGS72 3
#endif
/*----------------------------------------------------------------------
**
** Copyright (C) 2020
** Standards Of Fundamental Astronomy Board
** of the International Astronomical Union.
**
** =====================
** SOFA Software License
** =====================
**
** NOTICE TO USER:
**
** BY USING THIS SOFTWARE YOU ACCEPT THE FOLLOWING SIX TERMS AND
** CONDITIONS WHICH APPLY TO ITS USE.
**
** 1. The Software is owned by the IAU SOFA Board ("SOFA").
**
** 2. Permission is granted to anyone to use the SOFA software for any
** purpose, including commercial applications, free of charge and
** without payment of royalties, subject to the conditions and
** restrictions listed below.
**
** 3. You (the user) may copy and distribute SOFA source code to others,
** and use and adapt its code and algorithms in your own software,
** on a world-wide, royalty-free basis. That portion of your
** distribution that does not consist of intact and unchanged copies
** of SOFA source code files is a "derived work" that must comply
** with the following requirements:
**
** a) Your work shall be marked or carry a statement that it
** (i) uses routines and computations derived by you from
** software provided by SOFA under license to you; and
** (ii) does not itself constitute software provided by and/or
** endorsed by SOFA.
**
** b) The source code of your derived work must contain descriptions
** of how the derived work is based upon, contains and/or differs
** from the original SOFA software.
**
** c) The names of all routines in your derived work shall not
** include the prefix "iau" or "sofa" or trivial modifications
** thereof such as changes of case.
**
** d) The origin of the SOFA components of your derived work must
** not be misrepresented; you must not claim that you wrote the
** original software, nor file a patent application for SOFA
** software or algorithms embedded in the SOFA software.
**
** e) These requirements must be reproduced intact in any source
** distribution and shall apply to anyone to whom you have
** granted a further right to modify the source code of your
** derived work.
**
** Note that, as originally distributed, the SOFA software is
** intended to be a definitive implementation of the IAU standards,
** and consequently third-party modifications are discouraged. All
** variations, no matter how minor, must be explicitly marked as
** such, as explained above.
**
** 4. You shall not cause the SOFA software to be brought into
** disrepute, either by misuse, or use for inappropriate tasks, or
** by inappropriate modification.
**
** 5. The SOFA software is provided "as is" and SOFA makes no warranty
** as to its use or performance. SOFA does not and cannot warrant
** the performance or results which the user may obtain by using the
** SOFA software. SOFA makes no warranties, express or implied, as
** to non-infringement of third party rights, merchantability, or
** fitness for any particular purpose. In no event will SOFA be
** liable to the user for any consequential, incidental, or special
** damages, including any lost profits or lost savings, even if a
** SOFA representative has been advised of such damages, or for any
** claim by any third party.
**
** 6. The provision of any version of the SOFA software under the terms
** and conditions specified herein does not imply that future
** versions will also be made available under the same terms and
** conditions.
*
** In any published work or commercial product which uses the SOFA
** software directly, acknowledgement (see www.iausofa.org) is
** appreciated.
**
** Correspondence concerning SOFA software should be addressed as
** follows:
**
** By email: sofa@ukho.gov.uk
** By post: IAU SOFA Center
** HM Nautical Almanac Office
** UK Hydrographic Office
** Admiralty Way, Taunton
** Somerset, TA1 2DN
** United Kingdom
**
**--------------------------------------------------------------------*/