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)
19940022	47	Red Green Blue z 19.05 znorm 14.87 sky 14.4 14.2 14.4 S/N 17.0 26.0 30.5 S/N(c) 7.2 0.4 10.1 SN(E/C) 0.21
19940023	47	Red Green Blue z 19.07 znorm 14.89 sky 14.5 14.5 14.5 S/N 16.7 25.6 30.0 S/N(c) 7.1 0.4 9.9 SN(E/C) 0.22