The verbose mode
$ > immatch -vc gsc -i 5000 testx90mwg.fits
gives more information about how the fit is going:
IMMATCH 2.5, 8 December 1998, Doug Mink, SAO
Matching catalog to FITS image file testx90mwg.fits
GSCREAD: 0 / 1: 0 / 0 / 3097 sources, region 2580.0001
GSCREAD: 0 / 1: 0 / 100 / 3097 sources, region 2580.0061
GSCREAD: 0 / 1: 0 / 200 / 3097 sources, region 2580.0125
GSCREAD: 0 / 1: 0 / 300 / 3097 sources, region 2580.0189
GSCREAD: 0 / 1: 0 / 400 / 3097 sources, region 2580.0250
GSCREAD: 0 / 1: 0 / 500 / 3097 sources, region 2580.0312
GSCREAD: 0 / 1: 0 / 600 / 3097 sources, region 2580.0371
GSCREAD: 0 / 1: 0 / 700 / 3097 sources, region 2580.0434
GSCREAD: 0 / 1: 0 / 800 / 3097 sources, region 2580.0495
GSCREAD: 0 / 1: 0 / 900 / 3097 sources, region 2580.0561
GSCREAD: 0 / 1: 0 / 1000 / 3097 sources, region 2580.0625
GSCREAD: 0 / 1: 0 / 1100 / 3097 sources, region 2580.0690
GSCREAD: 0 / 1: 0 / 1200 / 3097 sources, region 2580.0756
GSCREAD: 0 / 1: 0 / 1300 / 3097 sources, region 2580.0822
GSCREAD: 0 / 1: 0 / 1400 / 3097 sources, region 2580.0885
GSCREAD: 0 / 1: 0 / 1500 / 3097 sources, region 2580.0947
GSCREAD: 0 / 1: 0 / 1600 / 3097 sources, region 2580.1009
GSCREAD: 0 / 1: 0 / 1700 / 3097 sources, region 2580.1075
GSCREAD: 0 / 1: 0 / 1800 / 3097 sources, region 2580.1143
GSCREAD: 0 / 1: 2 / 1900 / 3097 sources, region 2580.1243
GSCREAD: 0 / 1: 2 / 2000 / 3097 sources, region 2580.1343
GSCREAD: 0 / 1: 3 / 2100 / 3097 sources, region 2580.1443
GSCREAD: 0 / 1: 4 / 2200 / 3097 sources, region 2580.1543
GSCREAD: 0 / 1: 5 / 2300 / 3097 sources, region 2580.1643
GSCREAD: 0 / 1: 7 / 2400 / 3097 sources, region 2580.1743
GSCREAD: 0 / 1: 8 / 2500 / 3097 sources, region 2580.1842
GSCREAD: 0 / 1: 10 / 2600 / 3097 sources, region 2580.1942
GSCREAD: 0 / 1: 11 / 2700 / 3097 sources, region 2580.2042
GSCREAD: 0 / 1: 11 / 2800 / 3097 sources, region 2580.2142
GSCREAD: 0 / 1: 12 / 2900 / 3097 sources, region 2580.2242
GSCREAD: 0 / 1: 13 / 3000 / 3097 sources, region 2580.2342
GSCREAD: 1 / 1: 13 / 3098 / 3097 sources from region 2580
GSCREAD: 1 region: 13 / 3098 found
1: (529 33) -> (528.502 33.492) 32342.0 -> 101758.2 2 -> 2
2: (230 196) -> (229.755 196.121) 14863.0 -> 34583.6 2 -> 2
3: (867 236) -> (866.525 236.374) 5132.0 -> 13175.8 2 -> 2
4: (900 396) -> (899.684 396.124) 17609.0 -> 39752.0 2 -> 2
5: (948 476) -> (947.870 475.791) 32496.0 -> 64678.8 2 -> 2
6: (986 507) -> (986.036 507.215) 9859.0 -> 28483.2 2 -> 2
7: (589 527) -> (588.850 526.586) 15763.0 -> 25958.9 2 -> 2
8: (284 621) -> (283.508 620.503) 32111.0 -> 51179.8 2 -> 2
9: (817 653) -> (817.041 653.369) 16566.0 -> 54077.0 2 -> 2
10: (661 661) -> (661.274 661.022) 32061.0 -> 113744.0 2 -> 2
11: (19 667) -> ( 18.544 666.628) 9349.0 -> 14587.1 2 -> 2
12: (737 763) -> (737.100 763.463) 32145.0 -> 132652.0 2 -> 2
13: (607 773) -> (606.972 773.048) 9847.0 -> 23895.1 2 -> 2
14: (209 861) -> (209.417 861.295) 29360.0 -> 114094.6 2 -> 2
15: (30 922) -> ( 30.226 921.724) 13624.0 -> 33853.8 2 -> 2
16: (961 978) -> (960.506 978.386) 32694.0 -> 70186.9 2 -> 2
testx90mwg.fits:
IMWCS = IMWCS 1.0, 28 June 1996, Doug Mink SAO
CTYPE1 = RA---TAN
CRVAL1 = 243.98700000
CRPIX1 = 512.00000000
CTYPE2 = DEC--TAN
CRVAL2 = 31.41850000
CRPIX2 = 512.00000000
CDELT1 = -0.00017921
CROTA1 = -0.073
CDELT2 = 0.00017921
CROTA2 = 0.000
Reference pixel (512.00,512.00) 16:15:56.880 +31:25:06.60 J2000
Search at 16:15:56.880 +31:25:06.60 J2000 +- 00:00:25.779 +00:05:29.99
Image width=1024 height=1024, 0.644515 arcsec/pixel
using all 13 reference stars
gsc:
2580.1696 16:15:49.339 +31:26:42.40 13.38 661.8 660.3
2580.1207 16:15:45.511 +31:27:48.64 13.50 737.8 762.9
2580.1403 16:15:34.330 +31:30:06.66 13.59 959.6 976.7
2580.2291 16:16:08.345 +31:26:15.76 13.81 284.7 619.5
2580.1629 16:15:55.896 +31:19:58.40 13.91 530.9 34.3
2580.1158 16:16:12.139 +31:28:54.01 13.99 209.9 865.0
2580.1710 16:15:56.083 +31:24:24.44 14.13 527.7 446.6
2580.1798 16:15:34.867 +31:24:43.45 14.16 948.8 475.7
2580.2147 16:16:21.072 +31:29:28.82 14.47 32.9 919.3
2580.1909 16:15:37.282 +31:23:51.97 14.76 900.8 396.0
2580.1943 16:15:41.477 +31:26:37.54 14.84 817.7 652.7
2580.1485 16:15:52.958 +31:25:15.56 14.88 589.8 525.8
2580.1878 16:16:10.956 +31:21:42.41 14.92 232.1 195.9
# Arcsec/Pixel: -0.645145 0.645145 Rotation: -0.072730 degrees
# Optical axis: 16:15:56.880 +31:25:06.60 J2000 at (512.00,512.00)
# Optical axis: 16:13:59.776 +31:32:29.78 B1950 at (512.00,512.00)
# 12 matches between gsc and testx90mwg.fits:
2580.1629 16:15:55.896 +31:19:58.40 13.91 528.5 33.5 -2.15 0.50 1.65
2580.1878 16:16:10.956 +31:21:42.41 14.92 229.8 196.1 -2.11 -0.12 1.54
2580.1909 16:15:37.282 +31:23:51.97 14.76 899.7 396.1 -0.99 -0.10 0.73
2580.1798 16:15:34.867 +31:24:43.45 14.16 947.9 475.8 -0.78 -0.03 0.57
2580.1485 16:15:52.958 +31:25:15.56 14.88 588.8 526.6 -0.87 -0.51 0.81
2580.2291 16:16:08.345 +31:26:15.76 13.81 283.5 620.5 -1.06 -0.63 0.99
2580.1943 16:15:41.477 +31:26:37.54 14.84 817.0 653.4 -0.60 -0.46 0.64
2580.1696 16:15:49.339 +31:26:42.40 13.38 661.3 661.0 -0.44 -0.45 0.55
2580.1207 16:15:45.511 +31:27:48.64 13.50 737.1 763.5 -0.61 -0.35 0.56
2580.1158 16:16:12.139 +31:28:54.01 13.99 209.4 861.3 -0.41 2.37 2.39
2580.2147 16:16:21.072 +31:29:28.82 14.47 30.2 921.7 -2.36 -1.57 2.32
2580.1403 16:15:34.330 +31:30:06.66 13.59 960.5 978.4 0.78 -1.07 1.21
# Mean dx= 1.0915/1.4499 dy= -0.3127/1.4632 dxy= 1.8041
# Mean dra= -0.9669/1.2849 ddec= -0.2007/0.9435 sep= 1.1639
[immatch]
[immatch Guide Star Example]
[SAOimage Guide Star Example]