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)
18540015	47	Red Green Blue z 19.12 znorm 14.94 sky 14.2 14.0 13.8 S/N 16.7 26.9 29.9 S/N(c) 31.0 38.8 21.3 SN(E/C) 0.94
18540016	47	Red Green Blue z 19.12 znorm 14.94 sky 14.2 14.0 14.0 S/N 16.4 26.1 29.4 S/N(c) 30.9 38.6 21.1 SN(E/C) 0.95
18540017	47	Red Green Blue z 19.15 znorm 14.97 sky 14.1 14.0 13.8 S/N 16.6 26.5 29.6 S/N(c) 31.8 39.1 21.5 SN(E/C) 0.96
18540018	47	Red Green Blue z 19.20 znorm 15.02 sky 14.3 14.0 13.9 S/N 16.6 26.7 30.2 S/N(c) 32.6 40.1 22.3 SN(E/C) 0.94