d52_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---1.11, 1.05,1.28
Integration time (s)---1800, 1800, 900
Pixel scale (arcsec)---1.134, 1.134, 1.134

# Fri 10:30:18 08-Nov-2002
begin BFIT
status 0 (Solution converged)
variance 4.407164E-4
stdeviation 0.02099325
avsqerror 4.396584E-4
averror 0.02096803
avsqscatter 2.765275E-4
avscatter 0.01662911
chisqr 1.002406
msq 4.261873E-4
rms 0.0206443
reference mB
fitting (BV+V)+b1+b2*XB+b3*BV+b4*BV*XB
weights photometric
parameters 4
b1 (fit)
b2 (fit)
b3 (fit)
b4 (constant)
derivatives 4
0.1
0.1
0.1
0.1
values 4
3.693181
0.2014288
-0.01482657
0.
errors 4
0.01122489
0.007020601
0.004072703
0.

# Fri 10:31:29 08-Nov-2002
begin VFIT
status 0 (Solution converged)
variance 2.900349E-4
stdeviation 0.01703041
avsqerror 2.892801E-4
averror 0.01700824
avsqscatter 1.414539E-4
avscatter 0.01189344
chisqr 1.002609
msq 2.807784E-4
rms 0.01675645
reference mV
fitting V+v1+v2*XV+v3*BV+v4*BV*XV
weights photometric
parameters 4
v1 (fit)
v2 (fit)
v3 (fit)
v4 (constant)
derivatives 4
0.1
0.1
0.1
0.1
values 4
3.261257
0.1071445
-0.01082438
0.
errors 4
0.00829612
0.005253313
0.002900119
0.

# Fri 11:00:11 08-Nov-2002
begin UFIT
status 0 (Solution converged)
variance 0.002731319
stdeviation 0.05226202
avsqerror 0.00272939
averror 0.05224356
avsqscatter 0.00197325
avscatter 0.04442127
chisqr 1.000707
msq 0.00267129
rms 0.05168452
reference mU
fitting (UB+BV+V)+u1+u2*XU+u3*UB+u4*UB*XU
weights photometric
parameters 4
u1 (fit)
u2 (fit)
u3 (constant)
u4 (constant)
derivatives 4
0.1
0.1
0.1
0.1
values 4
5.323316
0.4120857
-0.0766
0.
errors 4
0.02801527
0.01795449
0.
0.

# Fri 11:01:19 08-Nov-2002
begin BFIT
status 0 (Solution converged)
variance 5.843402E-4
stdeviation 0.02417313
avsqerror 5.823294E-4
averror 0.0241315
avsqscatter 3.328577E-4
avscatter 0.01824439
chisqr 1.003453
msq 5.719074E-4
rms 0.02391459
reference mB
fitting (BV+V)+b1+b2*XB+b3*BV+b4*BV*XB
weights photometric
parameters 4
b1 (fit)
b2 (fit)
b3 (constant)
b4 (constant)
derivatives 4
0.1
0.1
0.1
0.1
values 4
3.690263
0.2034149
-0.0148
0.
errors 4
0.01174467
0.007465799
0.
0.

# Fri 11:02:26 08-Nov-2002
begin VFIT
status 0 (Solution converged)
variance 2.545288E-4
stdeviation 0.01595396
avsqerror 2.524898E-4
averror 0.01588993
avsqscatter 1.373792E-4
avscatter 0.01172089
chisqr 1.008075
msq 2.490551E-4
rms 0.01578148
reference mV
fitting V+v1+v2*XV+v3*BV+v4*BV*XV
weights photometric
parameters 4
v1 (fit)
v2 (fit)
v3 (constant)
v4 (constant)
derivatives 4
0.1
0.1
0.1
0.1
values 4
3.261801
0.1069098
-0.0111
0.
errors 4
0.008078038
0.005174692
0.
0.

# Fri 11:16:10 08-Nov-2002
begin UFIT
status 0 (Solution converged)
variance 0.003017146
stdeviation 0.05492855
avsqerror 0.003015286
averror 0.05491162
avsqscatter 0.002167479
avscatter 0.04655619
chisqr 1.000617
msq 0.002985386
rms 0.05463869
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
5.3049
0.4227754
-0.0766
0.
errors 4
0.
0.003386221
0.
0.

# Fri 11:17:14 08-Nov-2002
begin BFIT
status 0 (Solution converged)
variance 5.179017E-4
stdeviation 0.02275745
avsqerror 5.225522E-4
averror 0.0228594
avsqscatter 3.167792E-4
avscatter 0.01779829
chisqr 0.9911004
msq 5.122723E-4
rms 0.02263343
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
3.678
0.2112887
-0.0148
0.
errors 4
0.
0.00135361
0.
0.

# Fri 11:18:21 08-Nov-2002
begin VFIT
status 0 (Solution converged)
variance 2.812528E-4
stdeviation 0.01677059
avsqerror 2.803515E-4
averror 0.0167437
avsqscatter 1.387285E-4
avscatter 0.01177831
chisqr 1.003215
msq 2.782607E-4
rms 0.01668115
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
3.254
0.111847
-0.0111
0.
errors 4
0.
9.457187E-4
0.
0.

# Fri 10:19:50 08-Nov-2002
begin UFIT
status 0 (Solution converged)
variance 0.004688184
stdeviation 0.06847031
avsqerror 0.004686876
averror 0.06846076
avsqscatter 0.003162229
avscatter 0.0562337
chisqr 1.000279
msq 0.004512377
rms 0.06717423
reference mU
fitting (UB+BV+V)+u1+u2*XU+u3*UB+u4*UB*XU
weights photometric
parameters 4
u1 (fit)
u2 (fit)
u3 (fit)
u4 (constant)
derivatives 4
0.1
0.1
0.1
0.1
values 4
5.168071
0.5094084
-0.09145314
0.
errors 4
0.04789072
0.03419954
0.01367779
0.