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)
18120052	47	Red Green Blue z 18.85 znorm 14.67 sky 14.8 14.3 14.6 S/N 13.4 22.1 25.1 S/N(c) 36.5 25.7 17.1 SN(E/C) 0.90
18120053	47	Red Green Blue z 18.92 znorm 14.74 sky 14.9 14.5 14.5 S/N 13.9 23.1 26.5 S/N(c) 37.2 26.6 17.6 SN(E/C) 0.87
18120054	47	Red Green Blue z 18.80 znorm 14.62 sky 14.8 14.5 14.7 S/N 13.0 21.8 24.2 S/N(c) 34.8 25.0 16.6 SN(E/C) 0.90
18120055	47	Red Green Blue z 18.80 znorm 14.61 sky 14.7 14.5 14.7 S/N 12.6 21.5 24.7 S/N(c) 34.7 25.1 16.4 SN(E/C) 0.90
18120056	47	Red Green Blue z 18.77 znorm 14.59 sky 14.8 14.5 14.7 S/N 12.5 21.5 24.0 S/N(c) 34.5 24.7 16.2 SN(E/C) 0.90
18120057	47	Red Green Blue z 18.76 znorm 14.58 sky 14.7 14.5 14.7 S/N 12.2 21.9 23.9 S/N(c) 34.4 24.6 15.9 SN(E/C) 0.88
18120058	47	Red Green Blue z 18.70 znorm 14.52 sky 14.8 14.5 14.7 S/N 12.6 21.6 23.3 S/N(c) 33.1 23.7 15.3 SN(E/C) 0.91
18120059	47	Red Green Blue z 18.76 znorm 14.58 sky 14.7 14.6 14.5 S/N 12.5 21.7 24.1 S/N(c) 33.9 24.5 15.6 SN(E/C) 0.95