blob: 5e5b616247429e6e8e55b7ac184c8fe8bfe0aca5 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
SUBROUTINE sla_CAF2R (IDEG, IAMIN, ASEC, RAD, J)
*+
* - - - - - -
* C A F 2 R
* - - - - - -
*
* Convert degrees, arcminutes, arcseconds to radians
* (single precision)
*
* Given:
* IDEG int degrees
* IAMIN int arcminutes
* ASEC real arcseconds
*
* Returned:
* RAD real angle in radians
* J int status: 0 = OK
* 1 = IDEG outside range 0-359
* 2 = IAMIN outside range 0-59
* 3 = ASEC outside range 0-59.999...
*
* Notes:
*
* 1) The result is computed even if any of the range checks
* fail.
*
* 2) The sign must be dealt with outside this routine.
*
* P.T.Wallace Starlink 23 August 1996
*
* Copyright (C) 1996 Rutherford Appleton Laboratory
*-
IMPLICIT NONE
INTEGER IDEG,IAMIN
REAL ASEC,RAD
INTEGER J
* Arc seconds to radians
REAL AS2R
PARAMETER (AS2R=0.484813681109535994E-5)
* Preset status
J=0
* Validate arcsec, arcmin, deg
IF (ASEC.LT.0.0.OR.ASEC.GE.60.0) J=3
IF (IAMIN.LT.0.OR.IAMIN.GT.59) J=2
IF (IDEG.LT.0.OR.IDEG.GT.359) J=1
* Compute angle
RAD=AS2R*(60.0*(60.0*REAL(IDEG)+REAL(IAMIN))+ASEC)
END
|
