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)
4910080 47
RedGreenBlue
z18.98
znorm14.80
sky 15.0 14.5 14.5
S/N 13.9 21.4 25.5
S/N(c) 12.5 20.3 24.1
SN(E/C) 0.80
4910081 47
RedGreenBlue
z19.04
znorm14.86
sky 14.6 14.5 14.7
S/N 14.3 22.4 26.3
S/N(c) 13.1 21.1 24.7
SN(E/C) 0.81
4910082 47
RedGreenBlue
z19.03
znorm14.85
sky 14.8 14.6 14.6
S/N 14.1 22.0 26.1
S/N(c) 13.0 20.4 24.8
SN(E/C) 0.74
4910083 47
RedGreenBlue
z18.98
znorm14.80
sky 14.9 14.6 14.7
S/N 13.7 21.9 25.1
S/N(c) 12.3 20.6 23.7
SN(E/C) 0.81