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)
17950068	47	Red Green Blue z 18.82 znorm 14.64 sky 14.6 14.3 14.4 S/N 14.4 24.4 27.4 S/N(c) 29.2 25.7 47.9 SN(E/C) 0.46
17950069	47	Red Green Blue z 19.06 znorm 14.88 sky 14.9 14.7 14.8 S/N 17.6 28.8 31.6 S/N(c) 33.4 30.6 55.4 SN(E/C) 0.41