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wiki:ZoologySkyProbe

Version 1 (modified by heather, 15 years ago) ( diff )

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Are there false detections on skyprobe?

Short answer: No. There are not enough detections.

I put the chip stage images on /data/ipp010.0/heather. The camera stage was not set up to save the fits files, and I just grabbed already processed data. We do not go past camera stage for skyprobe.

These are the images (all MD01):

filter chip
g 191434
r 191435
i 191438
z 191491
y 191440

For skyprobe, I just looked at g, because g was the ugliest of gpc1 (with the most false detections).

Here is what skyprobe's detections look like:

Zoomed in:

There are many things not detected in skyprobe. We need to tweak psphot to find them.

I generated histograms, similar to those in http://svn.pan-starrs.ifa.hawaii.edu/trac/ipp/wiki/ZoologyInvestigations2. This was done in g band only. The first is a histogram of pixel/sqrt(variance), the y axis is in log scale. The second histogram is the same, but the red dots are from flipping the histogram.

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