wlm_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---1.60, 1.66, 1.57
Integration time (s)---2400, 2400, 1200
Pixel scale (arcsec)---1.134, 1.134, 1.134

# Wed 09:51:06 29-May-2002
begin UFIT
status 0 (Solution converged)
variance 0.002807827
stdeviation 0.05298893
avsqerror 0.004408114
averror 0.06639363
avsqscatter 0.001309995
avscatter 0.03619386
chisqr 0.6369677
msq 0.002711005
rms 0.05206731
reference mU
fitting (UB+BV+V)+u1+u2*XU+u3*UB+u4*UB*XU
weights photometric
parameters 4
u1 (constant)
u2 (fit)
u3 (constant)
u4 (constant)
derivatives 4
0.1
0.1
0.1
0.1
values 4
5.04
0.463949
-0.112
0.
errors 4
0.
0.005936652
0.
0.

# Wed 09:51:38 29-May-2002
begin BFIT
status 0 (Solution converged)
variance 7.376013E-4
stdeviation 0.02715882
avsqerror 9.027324E-4
averror 0.03004551
avsqscatter 2.369830E-4
avscatter 0.01539425
chisqr 0.8170763
msq 7.121667E-4
rms 0.02668645
reference mB
fitting (BV+V)+b1+b2*XB+b3*BV+b4*BV*XB
weights photometric
parameters 4
b1 (constant)
b2 (fit)
b3 (constant)
b4 (constant)
derivatives 4
0.1
0.1
0.1
0.1
values 4
3.388
0.2456194
-0.0237
0.
errors 4
0.
0.002651105
0.
0.

# Wed 09:52:10 29-May-2002
begin VFIT
status 0 (Solution converged)
variance 4.553543E-4
stdeviation 0.02133903
avsqerror 6.226407E-4
averror 0.02495277
avsqscatter 1.746930E-4
avscatter 0.01321715
chisqr 0.7313276
msq 4.406655E-4
rms 0.02099203
reference mV
fitting V+v1+v2*XV+v3*BV+v4*BV*XV
weights photometric
parameters 4
v1 (constant)
v2 (fit)
v3 (constant)
v4 (constant)
derivatives 4
0.1
0.1
0.1
0.1
values 4
3.082
0.1349849
-0.0157
0.
errors 4
0.
0.002211011
0.
0.

# Fri 12:04:18 08-Nov-2002
begin UFIT
status 0 (Solution converged)
variance 0.003893676
stdeviation 0.06239933
avsqerror 0.003891669
averror 0.06238325
avsqscatter 0.003243723
avscatter 0.05695369
chisqr 1.000516
msq 0.00385269
rms 0.06207004
reference mU
fitting (UB+BV+V)+u1+u2*XU+u3*BV+u4*UB*XU
weights photometric
parameters 4
u1 (fit)
u2 (constant)
u3 (constant)
u4 (constant)
derivatives 4
0.1
0.1
0.1
0.1
values 4
5.3269
0.423
-0.0687
0.
errors 4
0.002
0.
0.
0.