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ngc4826_regression Namespace Reference

Variables

tuple pathname
 miriad: source Vlsr = 408; delta is 20 km/s
string datapath
tuple startTime
tuple startProc
string copystring22apr
tuple copytime
 reset the data as pre calibrated state
tuple setjy1time
 set flux scale fo calibrater
string correlation
 Flag bad data non-interactively.
list clipminmax
 clipoutside
tuple flag1time
string field
 Derive gain calibration solutions, try VLA-like calibration:
float minsnr
string refant
tuple gaincal1time
string fluxtable
 Transfer the flux density scale:
string reference
tuple fluxscale1time
float gaincurve
tuple correct1time
string datacolumn
tuple split1time
list cell
 Image the calibrater data:
string psfmode
tuple imagecal1time
int nchan
 Image the target source mosaic:
string spw
string stokes
int niter
string scaletype
 pbcor
float minpb
float cyclefactor
tuple imagesrc1time
tuple writefits1time
 Write image to a fits file:
string copystring16apr
 16 APR Calibration
tuple copy2time
tuple setjy2time
 Set the flux density of 3C273 to 23 Jy.
tuple flagdata2time
 Flag end channels.
tuple gaincal2time
tuple fluxscale2time
tuple correct2time
tuple split2time
string antenna
string timerange
tuple imagecal2time
int moments
string mask
tuple endProc
 Write image to a fits file:
tuple endTime
tuple thistest_cal_22apr
tuple thistest_src_22apr
tuple statistics
list im_calmax22
list im_srcmax22
tuple thistest_cal_16apr
tuple thistest_src_16apr
list im_calmax16
list im_srcmax16
tuple thistest_src
list thistest_immax
list thistest_imrms
float calmean22
 changed values due to flat noise clean
float srcmean22
float calmax22
float srcmax22
float calmean16
float srcmean16
float srcmax16
float calmax16
float srcmean
float immax
float imrms
tuple diff_cal22apr
tuple diff_src22apr
tuple diff_calmax22
tuple diff_srcmax22
tuple diff_cal16apr
tuple diff_src16apr
tuple diff_calmax16
tuple diff_srcmax16
tuple diff_src
tuple diff_immax
tuple diff_imrms
tuple datestring
string outfile
tuple logfile
dictionary statstrs
 regstate

Variable Documentation

Definition at line 250 of file ngc4826_regression.py.

Definition at line 373 of file ngc4826_regression.py.

Definition at line 367 of file ngc4826_regression.py.

Definition at line 370 of file ngc4826_regression.py.

changed values due to flat noise clean

Definition at line 365 of file ngc4826_regression.py.

Image the calibrater data:

Definition at line 142 of file ngc4826_regression.py.

Definition at line 91 of file ngc4826_regression.py.

Definition at line 92 of file ngc4826_regression.py.

Definition at line 183 of file ngc4826_regression.py.

16 APR Calibration

Concatenate the separate sources

Definition at line 177 of file ngc4826_regression.py.

Definition at line 66 of file ngc4826_regression.py.

reset the data as pre calibrated state

Set the flux density of 3C273 to 23 Jy

Definition at line 74 of file ngc4826_regression.py.

Definition at line 122 of file ngc4826_regression.py.

Definition at line 227 of file ngc4826_regression.py.

Flag bad data non-interactively.

Definition at line 90 of file ngc4826_regression.py.

Definition at line 161 of file ngc4826_regression.py.

Definition at line 134 of file ngc4826_regression.py.

Definition at line 55 of file ngc4826_regression.py.

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Definition at line 397 of file ngc4826_regression.py.

Write image to a fits file:

Definition at line 319 of file ngc4826_regression.py.

Definition at line 320 of file ngc4826_regression.py.

Derive gain calibration solutions, try VLA-like calibration:

Correct the calibrater/target source data: Use new parm spwmap to apply gain solutions derived from spwid1 to all other spwids...

Split out calibrated target source and calibrater data:

Correct the calibrater/target source data: Use spwmap to apply gain solutions derived from spwid1 to all other spwids...

Definition at line 99 of file ngc4826_regression.py.

Definition at line 94 of file ngc4826_regression.py.

Flag end channels.

Definition at line 194 of file ngc4826_regression.py.

Definition at line 109 of file ngc4826_regression.py.

Definition at line 210 of file ngc4826_regression.py.

Transfer the flux density scale:

Definition at line 107 of file ngc4826_regression.py.

Definition at line 102 of file ngc4826_regression.py.

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Definition at line 100 of file ngc4826_regression.py.

Definition at line 307 of file ngc4826_regression.py.

Image the target source mosaic:

Write image to a fits file:

mosaic data ...Sault weighting implies a noise unform image hence flux scale across image needed to be corrected to get right value

Definition at line 151 of file ngc4826_regression.py.

Definition at line 157 of file ngc4826_regression.py.

Definition at line 409 of file ngc4826_regression.py.

miriad: source Vlsr = 408; delta is 20 km/s

NOTE: This data has been filled into MIRIAD, line-length correction done, and then exported as separate files for each source. 3c273 was not line length corrected since it was observed for such a short amount of time that it did not need it.

Fill Data: Mosaic field spacing looks like:

F3 (fieldid 4) F2 (fieldid 3)

F4 (fieldid 5) F0 (fieldid 1) F1 (fieldid 2)

   F5 (fieldid 6)         F6 (fieldid 7)

4x64 channels = 256 channels

Primary Beam should be about 1.6' FWHM (7m dishes, 2.7mm wavelength) Resolution should be about 5-8"

Definition at line 54 of file ngc4826_regression.py.

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Definition at line 108 of file ngc4826_regression.py.

Definition at line 439 of file ngc4826_regression.py.

Definition at line 158 of file ngc4826_regression.py.

set flux scale fo calibrater

Definition at line 80 of file ngc4826_regression.py.

Set the flux density of 3C273 to 23 Jy.

Definition at line 188 of file ngc4826_regression.py.

Definition at line 135 of file ngc4826_regression.py.

Definition at line 239 of file ngc4826_regression.py.

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Definition at line 62 of file ngc4826_regression.py.

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Definition at line 254 of file ngc4826_regression.py.

Write image to a fits file:

Definition at line 168 of file ngc4826_regression.py.