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)
18510024	47	Red Green Blue z 17.67 znorm 13.49 sky 14.6 14.2 14.2 S/N 6.7 12.1 12.8 S/N(c) 6.5 9.0 4.8 SN(E/C) 1.04
18510025	47	Red Green Blue z 18.44 znorm 14.26 sky 14.4 14.1 14.3 S/N 11.8 20.0 21.6 S/N(c) 11.1 13.9 7.5 SN(E/C) 0.94
18510026	47	Red Green Blue z 18.65 znorm 14.47 sky 14.6 14.3 14.3 S/N 13.5 22.4 24.3 S/N(c) 12.8 15.6 8.4 SN(E/C) 0.89
18510027	47	Red Green Blue z 18.38 znorm 14.20 sky 14.2 14.1 14.0 S/N 10.7 18.9 20.1 S/N(c) 10.6 13.4 7.1 SN(E/C) 0.95