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)
19940058 47
RedGreenBlue
z18.94
znorm14.76
sky 14.5 14.5 14.9
S/N 16.6 25.8 28.5
S/N(c) 32.7 19.0 47.8
SN(E/C) 0.91
19940059 47
RedGreenBlue
z19.01
znorm14.83
sky 14.6 14.7 14.7
S/N 16.9 27.3 29.4
S/N(c) 33.5 19.3 48.7
SN(E/C) 0.93
19940060 47
RedGreenBlue
z19.04
znorm14.86
sky 14.8 14.7 14.8
S/N 17.2 27.5 29.8
S/N(c) 33.8 19.6 49.9
SN(E/C) 0.93
19940061 47
RedGreenBlue
z18.99
znorm14.81
sky 14.6 14.8 15.3
S/N 16.6 27.4 29.1
S/N(c) 32.7 19.1 48.2
SN(E/C) 0.89