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)
4780020 47
RedGreenBlue
z18.91
znorm14.73
sky 14.4 14.6 14.5
S/N 17.5 24.7 26.0
S/N(c) 16.6 23.7 25.1
SN(E/C) 0.82
4780021 47
RedGreenBlue
z18.95
znorm14.77
sky 14.5 14.6 14.9
S/N 18.0 25.2 26.5
S/N(c) 16.9 24.4 25.6
SN(E/C) 0.85
4780022 47
RedGreenBlue
z18.94
znorm14.76
sky 14.4 14.6 14.9
S/N 17.8 25.3 26.6
S/N(c) 16.8 24.5 25.4
SN(E/C) 0.82
4780023 47
RedGreenBlue
z18.91
znorm14.73
sky 14.5 14.5 14.8
S/N 17.5 25.0 26.0
S/N(c) 16.5 24.0 25.1
SN(E/C) 0.81