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)
18460048	47	Red Green Blue z 18.33 znorm 14.15 sky 14.4 14.2 14.4 S/N 10.5 17.7 19.5 S/N(c) 40.2 13.8 13.5 SN(E/C) 0.94
18460049	47	Red Green Blue z 18.31 znorm 14.13 sky 14.5 14.2 14.2 S/N 10.0 17.5 19.2 S/N(c) 39.3 13.7 13.3 SN(E/C) 1.01
18460050	47	Red Green Blue z 18.08 znorm 13.90 sky 14.9 14.6 14.5 S/N 8.4 15.3 16.8 S/N(c) 35.3 12.5 11.7 SN(E/C) 0.92