Left plots: red are targets, blue are telluric. Observed mags are calculated from median value of green chip. Zeropoint gives overall throughput: bigger number is more throughput.
First spatial plots: circles are objects, squares are tellurics, crosses are sky fibers. Colors give deviation of observed mag from expected 2MASS mag using the median zeropoint; red is brighter
Second spatial plots: circles are sky fibers. Colors give sky line brightness relative to plate median sky line brightness
FrameNreadsZeropointsMag plots Spatial mag deviation Spatial sky 16325A emission deviations (filled: sky, open: star) Spatial sky continuum emission Spatial sky telluric CO2 absorption deviations (filled: H < 10)
0 0
RedGreenBlue
z17.64
znorm Inf
sky -Inf -Inf -Inf
S/N 12.4 22.4 24.1
S/N(c) 0.0 0.0 0.0
SN(E/C) 0.86

IPAIRNAMESHIFTNEWSHIFTS/N NAMESHIFTNEWSHIFTS/N
0 20070031 0.504658 0.00000 17.6767 20070026 0.00000 0.504658 17.8403
1 20070028 0.501530 0.00312799 18.0254 20070029 -0.000793272 0.505451 18.3045
2 20070027 0.500448 0.00421000 18.0175 20070030 -0.00127258 0.505931 17.9276