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)
19880037	47	Red Green Blue z 19.11 znorm 14.93 sky 14.3 14.2 14.3 S/N 15.8 23.5 30.6 S/N(c) 41.9 28.8 19.7 SN(E/C) 0.88
19880038	47	Red Green Blue z 19.13 znorm 14.95 sky 14.3 14.4 14.5 S/N 15.5 23.5 31.0 S/N(c) 42.3 29.2 19.7 SN(E/C) 0.82