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
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
/*****************************************************************************
* Johns Hopkins University
* Center For Astrophysical Sciences
* FUSE
*****************************************************************************
*
* Synopsis: cf_screen_saa(fitsfile *infits, long nseconds,
* unsigned char *timeline_status,
* float *timeline_long, float *timeline_lat);
*
* Description: Set the screening bit due to SAA boundary.
*
* Arguments: fitsfile *infits Input FITS file pointer
* long nseconds Number of points in the timeline table
* unsigned char *timeline_status The status flag array
* float *timeline_long The longitude array
* float *timeline_lat The latitude array
*
* Calls: saa
*
* Returns: 0 on success
*
* History: 10/29/02 1.1 jch Initial coding
* 12/20/02 1.3 jch Include reading SAA table here
* 12/20/02 1.4 wvd Delete call to calfuse.h
* 05/20/03 1.5 rdr Add call to cf_proc_check
* 08/28/03 1.6 bjg New definition of structure saareg
* 09/02/03 1.7 wvd Change calfusettag.h to calfuse.h
* 09/10/03 1.8 wvd Tidy up code.
* 02/17/05 1.9 wvd Place parentheses around assignment
* used as truth value.
*
****************************************************************************/
#include <stdlib.h>
#include "calfuse.h"
int
cf_screen_saa(fitsfile *infits, long nseconds, unsigned char *timeline_status,
float *timeline_long, float *timeline_lat)
{
char CF_PRGM_ID[] = "cf_screen_saa";
char CF_VER_NUM[] = "1.9";
char saa_cal[FLEN_VALUE];
int errflg=0, status=0, hdutype;
long i;
saareg saa_bounds;
fitsfile *saafits;
cf_error_init(CF_PRGM_ID, CF_VER_NUM, stderr);
cf_timestamp(CF_PRGM_ID, CF_VER_NUM, "Begin Processing");
if ((errflg = cf_proc_check(infits, CF_PRGM_ID))) return errflg;
/*
* Read SAA boundaries from the specified calibration file.
*/
FITS_read_key(infits, TSTRING, "SAAC_CAL", saa_cal, NULL, &status);
FITS_open_file(&saafits, cf_cal_file(saa_cal), READONLY, &status);
FITS_movabs_hdu(saafits, 2, &hdutype, &status);
saa_bounds.n_points =
cf_read_col(saafits, TFLOAT, "LATITUDE", (void **) &(saa_bounds.lat));
(void) cf_read_col(saafits, TFLOAT, "LONGITUDE", (void **) &(saa_bounds.lon));
fits_close_file(saafits, &status);
/*
* Set the SAA boundary bit if in SAA
*/
for (i = 0; i < nseconds; i++) {
if (saa(&saa_bounds, (double)timeline_long[i], (double)timeline_lat[i])) {
timeline_status[i] |= TEMPORAL_SAA;
}
}
free(saa_bounds.lon);
free(saa_bounds.lat);
cf_proc_update(infits, CF_PRGM_ID, "COMPLETE");
cf_timestamp(CF_PRGM_ID, CF_VER_NUM, "Done processing");
return status;
}
|
