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)
15540022	47	Red Green Blue z 18.81 znorm 14.63 sky 14.5 14.5 14.7 S/N 12.9 22.4 24.2 S/N(c) 30.7 37.5 10.9 SN(E/C) 0.92
15540023	47	Red Green Blue z 18.70 znorm 14.52 sky 14.7 14.6 14.9 S/N 12.3 21.6 22.9 S/N(c) 29.2 35.6 10.2 SN(E/C) 0.96