n1156_jhkcalib.txt
The following calibration format can be used directly in
IRAF.digiphot.photcal.invertfit. The instrumental magnitudes
mJ, mH, and mK are -2.5*log(counts/s)+25.
For the these images, the average parameters for JHK are the following:
Airmass---1.04, 1.04, 1.30
Integration time (s)---25.95, 7.90, 5.95
Pixel scale (arcsec)---1.5, 1.5, 1.5
# Fri 12:55:07 07-Nov-2003
begin JFIT
status 0 (Solution converged)
variance 3.712130E-4
stdeviation 0.01926689
avsqerror 3.791071E-4
averror 0.01947067
avsqscatter 0.
avscatter 0.
chisqr 0.9791772
msq 3.016106E-4
rms 0.01736694
reference mJ
fitting J+j1+j2*XJ+j3*JH
weights photometric
parameters 3
j1 (fit)
j2 (fit)
j3 (fit)
derivatives 3
0.1
0.1
0.1
values 3
3.344196
0.0834231
-0.1042768
errors 3
0.04622651
0.03710712
0.03108403
# Fri 12:55:15 07-Nov-2003
begin HFIT
status 0 (Solution converged)
variance 8.012780E-4
stdeviation 0.02830685
avsqerror 0.001201885
averror 0.03466821
avsqscatter 1.874815E-4
avscatter 0.01369239
chisqr 0.6666847
msq 6.009585E-4
rms 0.02451446
reference mH
fitting (J-JH)+h1+h2*XH+h3*JH
weights photometric
parameters 3
h1 (fit)
h2 (fit)
h3 (fit)
derivatives 3
0.1
0.1
0.1
values 3
3.500429
0.1264963
-0.04915378
errors 3
0.06478246
0.0470113
0.07399762
# Fri 15:29:21 23-Apr-2004
begin KFIT
status 0 (Solution converged)
variance 0.002244474
stdeviation 0.04737588
avsqerror 0.00318836
averror 0.05646557
avsqscatter 7.636927E-4
avscatter 0.02763499
chisqr 0.7039587
msq 0.001923835
rms 0.04386154
reference mK
fitting (J-JH-HK)+k1+k2*XK+k3*HK
weights photometric
parameters 3
k1 (fit)
k2 (fit)
k3 (constant)
derivatives 3
0.1
0.1
0.1
values 3
4.198116
0.1116762
-0.16
errors 3
0.08379932
0.06323234
0.
