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)
19330071 94
RedGreenBlue
z19.83
znorm14.90
sky 15.6 14.9 15.4
S/N 29.4 39.2 49.4
S/N(c) 44.2 29.7 16.0
SN(E/C) 0.68
19330072 94
RedGreenBlue
z19.78
znorm14.85
sky 14.5 14.1 13.8
S/N 28.2 38.0 47.2
S/N(c) 43.1 29.2 15.4
SN(E/C) 0.73