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)
17220011 42
RedGreenBlue
z18.62
znorm14.56
sky 14.3 14.2 14.1
S/N 11.6 19.5 21.9
S/N(c) 13.3 14.3 15.2
SN(E/C) 0.53
17220012 42
RedGreenBlue
z18.53
znorm14.48
sky 14.4 14.4 14.4
S/N 11.0 18.9 21.4
S/N(c) 12.6 13.6 14.4
SN(E/C) 0.53