Saturday, January 17, 2009

Flagger images

James requested sample images from the flagger for the methods paper. Below are images + description:


This is a "noise-dominated" scan in the sense that the high/low pixels are set by noise, not signal. Despite the clear high frequency noise, this image actually maps out pretty well - I think the high-noise bolometers get downweighted and the high/low pixels probably get clipped by my hot pixel rejection procedure.



An image of the galactic center with a source southeast of center identified.


A scan from the GC image above. I forgot to mark the source, I should go back and do that. The glitch is obvious.


I drew a box to flag out the region affected by the glitch.


This is what happens when I redraw after flagging out the glitch - the colorbar is rescaled and no more glitch.




Timestream with glitches and sources marked (one pixel in the map is hit by 3 different points in this scan).


Grayscale version of above (ok, I lied about grayscale being impossible) with a different pixel marked.


A zoom-in around the 'kidney bean' source with the Bolocam footprint overlaid and a pixel marked. Note that this pixel corresponds to the 3 points in the color waterfall above.

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