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)
19700046 94
RedGreenBlue
z19.68
znorm14.75
sky 15.1 14.7 15.0
S/N 29.2 38.8 48.9
S/N(c) 22.3 64.6 12.0
SN(E/C) 0.72
19700047 94
RedGreenBlue
z19.76
znorm14.83
sky 15.1 14.9 15.0
S/N 30.2 39.0 50.1
S/N(c) 23.1 68.5 12.4
SN(E/C) 0.67