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)
18950035 42
RedGreenBlue
z17.51
znorm13.46
sky 14.9 14.7 14.8
S/N 6.3 11.9 13.0
S/N(c) 6.9 8.8 8.5
SN(E/C) 0.78
18950036 42
RedGreenBlue
z17.45
znorm13.39
sky 15.4 15.3 14.9
S/N 5.8 11.4 12.6
S/N(c) 6.5 8.5 8.2
SN(E/C) 0.74