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)
18550060	47	Red Green Blue z 18.51 znorm 14.33 sky 15.1 14.7 14.9 S/N 12.4 19.9 23.2 S/N(c) 18.3 23.0 8.4 SN(E/C) 0.40
18550061	47	Red Green Blue z 18.48 znorm 14.30 sky 15.5 14.9 14.8 S/N 12.7 19.7 22.9 S/N(c) 18.4 22.9 8.2 SN(E/C) 0.40
18550062	47	Red Green Blue z 18.68 znorm 14.50 sky 15.0 14.7 14.7 S/N 14.1 21.9 25.5 S/N(c) 20.5 25.3 9.1 SN(E/C) 0.38
18550063	47	Red Green Blue z 18.77 znorm 14.59 sky 14.9 14.7 14.7 S/N 15.1 23.1 27.1 S/N(c) 21.3 26.0 9.5 SN(E/C) 0.36