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)
19380078 94
RedGreenBlue
z19.68
znorm14.75
sky 15.2 14.7 15.1
S/N 27.8 38.1 46.5
S/N(c) 31.9 0.4 11.8
SN(E/C) 0.70
19380079 94
RedGreenBlue
z19.67
znorm14.73
sky 14.7 14.5 14.4
S/N 27.3 37.8 45.4
S/N(c) 31.1 0.4 11.5
SN(E/C) 0.67