Each raster was analysed using matlab code using the pipeline to calibrate it in terms of noise diode units only. Rfi flagging and load corrections were applied. Notes on C-BASS N raster analysis and polarization calibration
ACT - August 19, 2013
Schedules Run
17-Jul-2013:13:53:34 17-Jul-2013:21:57:50 /home/cbass/gcpCbass/control/sch/source_raster_8x4x0.05.sch( 8h , taua )
16-Jul-2013:13:48:20 16-Jul-2013:21:08:10 /home/cbass/gcpCbass/control/sch/source_raster_8x4x0.05.sch( 10h , m42)
Analaysis notes
The individual raster scans were saved as .fits files along with a .fits file for the complete dataset.
Polarization calibration matrices were determined for M42 and TauA.
The data
The data were mapped using a simple binning code in matlab - in Az/El and in RA/DEC.In each case the data were mapped before and after parallactic angle rotations and with and without polarization calibration.
The data were also mapped using descart, primarily to check consistency and to check that the polarization was being correctly recovered.
Results - TauA
Az-El maps made in matlab
1) Uncalibrated data without PA rotation![]() |
2) Uncalibrated data with PA rotation![]() |
3)Calibrated data without PA rotation![]() |
4)Calibrated data with PA rotation![]() |
1) Uncalibrated I data![]() |
2) Uncalibrated P data![]() |
1) Uncalibrated I data![]() |
2) Uncalibrated P data![]() |
1) Uncalibrated I data![]() |
2) Uncalibrated P data![]() |
1) Uncalibrated I data![]() |
2) Uncalibrated P data![]() |
1) Uncalibrated data without PA rotation![]() |
2) Uncalibrated data with PA rotation![]() |
3)Calibrated data without PA rotation![]() |
4)Calibrated data with PA rotation![]() |
1) Uncalibrated I data![]() |
2) Uncalibrated P data![]() |
1) Uncalibrated I data![]() |
2) Uncalibrated P data![]() |
1) Uncalibrated I data![]() |
2) Uncalibrated P data![]() |
1) Uncalibrated I data![]() |
2) Uncalibrated P data![]() |