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 18.79 znorm 14.61 sky 14.5 14.5 14.4 S/N 13.3 23.2 23.7 S/N(c) 11.8 21.5 21.8 SN(E/C) 0.93
12590051	47	Red Green Blue z 18.56 znorm 14.38 sky 14.6 14.6 14.7 S/N 11.7 20.0 20.8 S/N(c) 10.3 18.6 19.2 SN(E/C) 0.95
12590052	47	Red Green Blue z 18.63 znorm 14.45 sky 14.8 14.6 14.8 S/N 12.0 21.2 21.9 S/N(c) 10.6 19.4 20.2 SN(E/C) 0.95
12590053	47	Red Green Blue z 18.70 znorm 14.52 sky 14.7 14.6 14.8 S/N 12.7 22.0 22.9 S/N(c) 11.0 20.3 21.2 SN(E/C) 0.96