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)
1680024 50
RedGreenBlue
z18.89
znorm14.64
sky 14.1 13.9 13.8
S/N 13.8 21.2 22.5
S/N(c) 21.9 23.4 31.3
SN(E/C) 0.39
1680025 50
RedGreenBlue
z18.93
znorm14.68
sky 14.0 13.9 13.9
S/N 14.1 21.7 24.0
S/N(c) 22.3 23.7 32.2
SN(E/C) 0.42
1680026 50
RedGreenBlue
z18.91
znorm14.66
sky 14.1 13.9 13.8
S/N 13.9 21.5 23.0
S/N(c) 21.9 23.5 31.8
SN(E/C) 0.42
1680027 50
RedGreenBlue
z18.80
znorm14.55
sky 14.0 13.9 13.9
S/N 12.6 20.0 21.9
S/N(c) 20.3 22.3 29.9
SN(E/C) 0.40
1680028 50
RedGreenBlue
z18.83
znorm14.58
sky 14.0 13.9 13.9
S/N 13.1 20.3 22.1
S/N(c) 20.9 22.8 30.6
SN(E/C) 0.40
1680029 50
RedGreenBlue
z18.73
znorm14.48
sky 14.0 13.9 13.9
S/N 12.1 19.4 21.4
S/N(c) 20.0 21.9 28.7
SN(E/C) 0.40