f564v3_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---1.03, 1.07, 1.14
Integration time (s)---1200, 900, 750750750750
Pixel scale (arcsec)---0.61, 0.61, 0.61
# Tue 14:29:26 14-May-2002
begin UFIT
status 0 (Solution converged)
variance 0.01419573
stdeviation 0.1191458
avsqerror 1.
averror 1.
avsqscatter 0.
avscatter 0.
chisqr 0.01419573
msq 0.01242127
rms 0.1114507
reference mU
fitting (UB+BV+V)+u1+u2*XU+u3*UB+u4*UB*XU
weights uniform
parameters 4
u1 (fit)
u2 (fit)
u3 (fit)
u4 (constant)
derivatives 4
0.1
0.1
0.1
0.1
values 4
3.57078
0.3969172
-0.1194534
0.
errors 4
0.08452704
0.04432307
0.03044868
0.
# Tue 14:30:12 14-May-2002
begin BFIT
status 0 (Solution converged)
variance 0.008268626
stdeviation 0.09093199
avsqerror 1.
averror 1.
avsqscatter 0.
avscatter 0.
chisqr 0.008268626
msq 0.00719011
rms 0.08479451
reference mB
fitting (BV+V)+b1+b2*XB+b3*BV+b4*BV*XB
weights uniform
parameters 4
b1 (fit)
b2 (fit)
b3 (fit)
b4 (constant)
derivatives 4
0.1
0.1
0.1
0.1
values 4
1.744922
0.2157
0.05138599
0.
errors 4
0.07610562
0.03521893
0.03280151
0.
# Tue 14:33:00 14-May-2002
begin VFIT
status 0 (Solution converged)
variance 0.02103762
stdeviation 0.1450435
avsqerror 1.
averror 1.
avsqscatter 0.
avscatter 0.
chisqr 0.02103762
msq 0.01941934
rms 0.1393533
reference mV
fitting V+v1+v2*XV+v3*BV+v4*BV*XV
weights uniform
parameters 4
v1 (fit)
v2 (fit)
v3 (fit)
v4 (constant)
derivatives 4
0.1
0.1
0.1
0.1
values 4
1.560629
0.07103309
0.03680699
0.
errors 4
0.1002572
0.04979341
0.04291682
0.
