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)
12020027 47
RedGreenBlue
z16.96
znorm12.78
sky 13.7 13.6 13.8
S/N 2.7 5.8 6.3
S/N(c) 2.4 5.3 5.4
SN(E/C) 0.86
12020028 47
RedGreenBlue
z18.00
znorm13.82
sky 14.1 14.0 14.3
S/N 6.8 12.6 13.3
S/N(c) 5.7 11.2 12.4
SN(E/C) 0.70
12020029 47
RedGreenBlue
z17.73
znorm13.55
sky 13.9 13.9 14.2
S/N 5.5 10.3 10.9
S/N(c) 4.5 9.4 9.9
SN(E/C) 0.77
12020030 47
RedGreenBlue
z17.39
znorm13.21
sky 13.8 13.8 14.1
S/N 4.0 8.0 8.5
S/N(c) 3.5 6.9 7.6
SN(E/C) 0.82