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)
12590050	47	Red Green Blue z 18.80 znorm 14.62 sky 14.9 14.6 14.5 S/N 13.9 23.1 24.6 S/N(c) 12.4 21.9 23.2 SN(E/C) 0.92
12590051	47	Red Green Blue z 18.57 znorm 14.39 sky 14.8 14.7 14.9 S/N 12.0 20.2 21.6 S/N(c) 10.6 19.0 20.4 SN(E/C) 0.95
12590052	47	Red Green Blue z 18.64 znorm 14.46 sky 14.9 14.7 14.9 S/N 12.0 21.3 22.5 S/N(c) 10.6 19.9 21.0 SN(E/C) 0.96
12590053	47	Red Green Blue z 18.70 znorm 14.52 sky 14.7 14.7 14.9 S/N 12.8 22.3 23.4 S/N(c) 11.3 20.7 21.8 SN(E/C) 0.95