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)
19800021	47	Red Green Blue z 18.89 znorm 14.71 sky 14.6 14.8 14.6 S/N 13.6 23.4 25.9 S/N(c) 19.8 13.9 23.8 SN(E/C) 0.83
19800022	47	Red Green Blue z 18.91 znorm 14.73 sky 14.8 14.8 14.7 S/N 13.7 23.7 25.8 S/N(c) 19.4 13.9 23.7 SN(E/C) 0.84