Current Status of the A520 analysis.

Main points: 1. PSF function has large negative sidelobes.
two possible causes: A bad composite-beammap (there is a known noisy composite beammap).
Unusual flagging.
To do items: Re-check calibration. Compare composite beammaps
Get flagging statistics. Compare with Bullet data
Remake Bullet PSF to see if pipeline has changed. *This has been done. The new Bullet PSF is the same as the old*

Still making maps, with various filters (butterworth, polynomial removal, various template orders).
* Using the same reduction as the Bullet Map.
coadd_pic_bulletreduction.png

* Using the Bullet map reduction + 0.3Hz butterworth filter.
coadd_pic.png

Trying out the CLEAN deconvolution algorithm. There is an issue with the PSF normalization causing the CLEAN algorithm to fail.
Below is a comparison between the PSF for the Bullet data and the PSF for the A520 data. These use the same filtering.
bulletpsf.png


a520psf.png


differencepsf.png

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Topic attachments
I Attachment Action Size Date Who Comment
PNGpng a520psf.png manage 8.4 K 2009-08-12 - 18:33 JamesKennedy  
PNGpng bulletpsf.png manage 6.5 K 2009-08-12 - 18:32 JamesKennedy  
PNGpng coadd_pic.png manage 82.1 K 2009-08-12 - 20:17 JamesKennedy  
PNGpng coadd_pic_bulletreduction.png manage 80.4 K 2009-08-12 - 20:17 JamesKennedy  
PNGpng differencepsf.png manage 13.4 K 2009-08-12 - 18:33 JamesKennedy  
This topic: APEX_SZ > WebHome > A520 > 2009-08-12 Topic revision: r3 - 2009-08-13 - JamesKennedy
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