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)
19540059 47
RedGreenBlue
z18.81
znorm14.63
sky 14.6 14.5 14.8
S/N 13.9 22.1 26.0
S/N(c) 15.6 24.1 32.2
SN(E/C) 0.87
19540060 47
RedGreenBlue
z18.94
znorm14.76
sky 14.8 14.6 14.6
S/N 15.2 23.8 28.1
S/N(c) 16.6 25.6 34.1
SN(E/C) 0.92