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)
1390070 50
RedGreenBlue
z18.88
znorm14.63
sky 14.2 13.4 13.2
S/N 13.4 18.8 26.5
S/N(c) 8.5 7.8 2.0
SN(E/C) 0.65
1390071 50
RedGreenBlue
z18.91
znorm14.66
sky 14.1 13.5 13.3
S/N 13.4 18.7 24.9
S/N(c) 8.6 7.8 1.9
SN(E/C) 0.66
1390072 50
RedGreenBlue
z18.39
znorm14.14
sky 12.7 12.6 12.5
S/N 8.2 11.8 18.7
S/N(c) 5.5 5.3 1.4
SN(E/C) 0.74