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)
16980017 47
RedGreenBlue
z18.98
znorm14.80
sky 14.7 14.5 14.5
S/N 14.2 23.8 25.9
S/N(c) 27.3 16.2 20.5
SN(E/C) 0.96
16980018 47
RedGreenBlue
z18.99
znorm14.81
sky 14.6 14.4 14.6
S/N 14.6 24.2 25.7
S/N(c) 27.3 16.1 20.5
SN(E/C) 0.94
16980019 47
RedGreenBlue
z19.03
znorm14.85
sky 14.7 14.6 14.6
S/N 14.6 24.4 26.3
S/N(c) 27.9 16.4 20.9
SN(E/C) 0.95
16980020 47
RedGreenBlue
z19.05
znorm14.87
sky 14.7 14.6 14.7
S/N 14.9 24.4 26.3
S/N(c) 28.2 16.5 20.8
SN(E/C) 0.92