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)
17850070	47	Red Green Blue z 18.00 znorm 13.82 sky 14.7 14.4 14.7 S/N 7.7 13.9 15.5 S/N(c) 10.5 11.0 9.6 SN(E/C) 0.89
17850071	47	Red Green Blue z 18.22 znorm 14.04 sky 14.6 14.4 14.6 S/N 8.9 15.9 17.5 S/N(c) 11.8 12.3 10.6 SN(E/C) 0.86