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)
19910067	47	Red Green Blue z 19.14 znorm 14.96 sky 14.2 14.0 14.2 S/N 16.3 26.5 30.4 S/N(c) 21.4 34.4 10.9 SN(E/C) 0.91
19910068	47	Red Green Blue z 19.15 znorm 14.97 sky 14.2 14.1 14.1 S/N 16.1 26.8 30.5 S/N(c) 21.3 34.6 10.9 SN(E/C) 0.91
19910069	47	Red Green Blue z 19.05 znorm 14.87 sky 14.3 14.1 14.1 S/N 15.1 25.6 28.8 S/N(c) 20.1 32.8 10.3 SN(E/C) 0.95
19910070	47	Red Green Blue z 19.07 znorm 14.89 sky 14.2 14.2 14.0 S/N 15.4 25.8 29.0 S/N(c) 20.6 33.5 10.4 SN(E/C) 0.92