d75_ubvcalib.txt
The following calibration format can be used directly in
IRAF.digiphot.photcal.invertfit. The instrumental magnitudes
mU, mB, and mV are -2.5*log(counts/s)+25.
For the these images, the average parameters for UBV are the following:
Airmass---1.28, 1.21, 1.3
Integration time (s)---1200, 663, 600
Pixel scale (arcsec)---0.39, 0.39, 0.39
# Tue 10:58:06 01-Jul-97
begin UFIT
status 0 (Solution converged)
variance 0.002871941
stdeviation 0.0535905
avsqerror 0.00346484
averror 0.05886289
avsqscatter 0.002937974
avscatter 0.05420309
chisqr 0.8288814
msq 0.002735182
rms 0.05229897
reference m01
fitting (UB+BV+V)+u1+u2*X01+u3*UB+u4*T01*X01+u5*UB*UB
weights photometric
parameters 5
u1 (constant)
u2 (fit)
u3 (constant)
u4 (constant)
u5 (constant)
derivatives 5
0.1
0.1
0.1
0.1
0.1
values 5
5.346
0.5326004
-0.102
0.
0.
errors 5
0.
0.01048708
0.
0.
0.
# Tue 12:26:31 01-Jul-97
begin BFIT
status 0 (Solution converged)
variance 1.120210E-4
stdeviation 0.010584
avsqerror 1.136157E-4
averror 0.01065907
avsqscatter 3.058562E-5
avscatter 0.005530426
chisqr 0.9859638
msq 1.064199E-4
rms 0.010316
reference m02
fitting (BV+V)+b1+b2*X02+b3*BV+b4*T01*X02
weights photometric
parameters 4
b1 (constant)
b2 (fit)
b3 (constant)
b4 (constant)
derivatives 4
0.1
0.1
0.1
0.1
values 4
3.762
0.267467
-0.081
0.
errors 4
0.
0.001693021
0.
0.
# Tue 11:44:32 01-Jul-97
begin VFIT
status 0 (Solution converged)
variance 5.566568E-4
stdeviation 0.02359357
avsqerror 7.157913E-4
averror 0.02675428
avsqscatter 5.489773E-4
avscatter 0.02343027
chisqr 0.7776803
msq 5.313542E-4
rms 0.02305112
reference m03
fitting V+v1+v2*X03+v3*BV+v4*T01*X03
weights photometric
parameters 4
v1 (constant)
v2 (fit)
v3 (constant)
v4 (constant)
derivatives 4
0.1
0.1
0.1
0.1
values 4
3.803
0.1939579
0.0416
0.
errors 4
0.
0.004289019
0.
0.
