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)
17580018	47	Red Green Blue z 19.01 znorm 14.83 sky 14.9 14.5 14.7 S/N 14.7 23.3 26.5 S/N(c) 25.8 22.1 21.1 SN(E/C) 0.95
17580019	47	Red Green Blue z 18.94 znorm 14.76 sky 14.9 14.7 14.8 S/N 13.8 22.6 25.7 S/N(c) 24.7 21.2 20.2 SN(E/C) 0.94
17580020	47	Red Green Blue z 18.99 znorm 14.81 sky 15.0 14.6 14.7 S/N 14.0 23.1 26.2 S/N(c) 25.5 21.8 20.9 SN(E/C) 0.92
17580021	47	Red Green Blue z 18.99 znorm 14.81 sky 14.6 14.7 14.6 S/N 14.3 23.7 26.8 S/N(c) 25.2 21.1 20.7 SN(E/C) 0.93