SUBROUTINE iau_TF2A ( S, IHOUR, IMIN, SEC, RAD, J ) *+ * - - - - - - - - - * i a u _ T F 2 A * - - - - - - - - - * * Convert hours, minutes, seconds to radians. * * This routine is part of the International Astronomical Union's * SOFA (Standards of Fundamental Astronomy) software collection. * * Status: support routine. * * Given: * S c sign: '-' = negative, otherwise positive * IHOUR i hours * IMIN i minutes * SEC d seconds * * Returned: * RAD d angle in radians * J i status: 0 = OK * 1 = IHOUR outside range 0-23 * 2 = IMIN outside range 0-59 * 3 = SEC outside range 0-59.999... * * Notes: * * 1) If the S argument is a string, only the leftmost character is * used and no warning status is provided. * * 2) The result is computed even if any of the range checks fail. * * 3) Negative IHOUR, IMIN and/or SEC produce a warning status, but the * absolute value is used in the conversion. * * 4) If there are multiple errors, the status value reflects only the * first, the smallest taking precedence. * * This revision: 2020 August 25 * * SOFA release 2023-10-11 * * Copyright (C) 2023 IAU SOFA Board. See notes at end. * *----------------------------------------------------------------------- IMPLICIT NONE CHARACTER S INTEGER IHOUR, IMIN DOUBLE PRECISION SEC, RAD INTEGER J * Seconds of time to radians DOUBLE PRECISION DS2R PARAMETER ( DS2R = 7.272205216643039903848712D-5 ) DOUBLE PRECISION W * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - * Preset the status. J = 0 * Validate seconds, minutes, hours. IF ( SEC.LT.0D0 .OR. SEC.GE.60D0 ) J=3 IF ( IMIN.LT.0 .OR. IMIN.GT.59 ) J=2 IF ( IHOUR.LT.0 .OR. IHOUR.GT.23 ) J=1 * Compute the angle. W = ( 60D0 * ( 60D0 * DBLE( ABS(IHOUR) ) + : DBLE( ABS(IMIN) ) ) + : ABS(SEC) ) * DS2R * Apply the sign. IF ( S .EQ. '-' ) W = -W * Return the result. RAD = W * Finished. *+---------------------------------------------------------------------- * * Copyright (C) 2023 * 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 * *----------------------------------------------------------------------- END