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Optimizing
Analysis
Techniques
for
Exoplanet
and
Brown
Dwarf
Light
Curve
Studies

Dataset:
wasp 43 ch2 2s subarray
r42615040  
2011-07-29T23:08:34.966
 
Symptoms
  • All 64 frames in one bcd, ~2.7 hours into the observation, have elevated flux across the whole frame (multiplied by ~1E5).  It looks like a normal image when displaying with ds9, only the photometry indicates something is wrong.  The flux levels in the bcd stack before and after are fine.
  • The imask implies the whole image is non-linear
  • The uncertainties (_bunc.fits) image is all nan's.
 
Explanation
The source of this problem is a corrupted header.  The barrel shift and some other header keywords were corrupted in transmission, causing the pipeline to not be able to correctly process the image. 
X position vs. time
Background vs. time
Noise pixel vs. time
Flux vs time