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)
19490062 42
RedGreenBlue
z18.62
znorm14.56
sky 14.6 14.4 14.5
S/N 8.8 15.5 18.2
S/N(c) 16.1 7.2 19.8
SN(E/C) 0.29
19490063 42
RedGreenBlue
z18.64
znorm14.58
sky 15.0 14.7 14.7
S/N 9.2 15.8 18.5
S/N(c) 16.1 7.1 19.8
SN(E/C) 0.28