ALMA SIS14 apcal: Difference between revisions
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== Amplitude Calibration (per Scan) == | == Amplitude Calibration (per Scan) == | ||
Now calibrate the amplitude response of each antenna as a function of time. | |||
<source lang="python"> | <source lang="python"> | ||
| Line 44: | Line 46: | ||
gaintable="phase.cal") | gaintable="phase.cal") | ||
</source> | </source> | ||
Plot the results of this fit. | |||
<source lang="python"> | <source lang="python"> | ||
Revision as of 19:48, 26 February 2014
Setup
Phase Calibration (per Scan)
# In CASA
listobs("sis14_ampandphase.ms")
# In CASA
os.system("rm -rf phase.cal")
gaincal(vis="sis14_ampandphase.ms",
caltable="phase.cal",
field="0",
solint="inf",
calmode="p",
refant="DV22",
gaintype="G")
# In CASA
plotcal(caltable="phase.cal",
xaxis="time",
yaxis="phase",
subplot=331,
iteration="antenna",
plotrange=[0,0,-180,180])
Amplitude Calibration (per Scan)
Now calibrate the amplitude response of each antenna as a function of time.
# In CASA
os.system("rm -rf amp.cal")
gaincal(vis="sis14_ampandphase.ms",
caltable="amp.cal",
field="0",
solint="inf",
calmode="a",
refant="DV22",
gaintype="G",
gaintable="phase.cal")
Plot the results of this fit.
# In CASA
plotcal(caltable="amp.cal",
xaxis="time",
yaxis="amp",
subplot=331,
iteration="antenna",
plotrange=[0,0,0,0])
Phase and Amplitude Calibration (per Integration)
# In CASA
os.system("rm -rf apcal_int.cal")
gaincal(vis="sis14_ampandphase.ms",
caltable="apcal_int.cal",
field="0",
solint="int",
calmode="ap",
refant="DV22",
gaintype="G")
Plot the per-integration variation of the phase.
# In CASA
plotcal(caltable="apcal_int.cal",
xaxis="time",
yaxis="phase",
subplot=331,
iteration="antenna",
plotrange=[0,0,-180,180])
Now plot the per-integration variation of the amplitude.
# In CASA
plotcal(caltable="apcal_int.cal",
xaxis="time",
yaxis="amp",
subplot=331,
iteration="antenna",
plotrange=[0,0,0,0])
