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)
18880026	47	Red Green Blue z 18.85 znorm 14.67 sky 14.8 14.9 15.1 S/N 17.8 26.1 30.6 S/N(c) 19.4 0.3 43.0 SN(E/C) 0.40
18880027	47	Red Green Blue z 18.93 znorm 14.75 sky 15.2 15.5 15.2 S/N 18.2 26.9 31.5 S/N(c) 20.4 0.3 45.3 SN(E/C) 0.39
18880028	47	Red Green Blue z 18.96 znorm 14.78 sky 15.2 15.3 15.4 S/N 18.6 27.4 31.9 S/N(c) 20.3 0.3 45.3 SN(E/C) 0.41
18880029	47	Red Green Blue z 18.92 znorm 14.74 sky 15.0 15.1 15.2 S/N 18.3 27.1 31.5 S/N(c) 20.1 0.3 44.8 SN(E/C) 0.43
18880030	47	Red Green Blue z 18.91 znorm 14.73 sky 15.3 15.2 15.4 S/N 18.6 27.3 31.8 S/N(c) 19.2 0.3 42.8 SN(E/C) 0.39
18880031	47	Red Green Blue z 18.82 znorm 14.64 sky 14.9 15.3 15.1 S/N 17.7 26.3 30.4 S/N(c) 18.6 0.3 41.7 SN(E/C) 0.40
18880032	47	Red Green Blue z 18.89 znorm 14.71 sky 15.1 15.3 15.2 S/N 18.0 26.7 30.9 S/N(c) 19.4 0.3 43.3 SN(E/C) 0.43
18880033	47	Red Green Blue z 18.89 znorm 14.71 sky 15.3 15.2 15.2 S/N 18.1 26.6 31.0 S/N(c) 19.6 0.3 43.7 SN(E/C) 0.42