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

Frame	Nreads	Zeropoints	Mag 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)
17940013	47	Red Green Blue z 18.87 znorm 14.69 sky 15.2 14.8 14.8 S/N 13.7 22.9 25.6 S/N(c) 12.9 3.9 20.2 SN(E/C) 0.90
17940014	47	Red Green Blue z 18.80 znorm 14.62 sky 15.0 15.0 15.3 S/N 12.4 21.7 24.5 S/N(c) 12.1 3.8 19.3 SN(E/C) 0.93
17940015	47	Red Green Blue z 18.88 znorm 14.70 sky 14.9 15.0 15.1 S/N 12.9 22.4 24.8 S/N(c) 12.7 3.9 20.0 SN(E/C) 0.86
17940016	47	Red Green Blue z 18.96 znorm 14.78 sky 15.2 14.9 15.2 S/N 13.7 23.1 25.8 S/N(c) 13.1 4.1 20.7 SN(E/C) 0.91