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)
9740030	47	Red Green Blue z 18.81 znorm 14.63 sky 15.1 15.0 14.7 S/N 12.8 22.1 22.5 S/N(c) 11.6 20.6 20.8 SN(E/C) 0.89
9740031	47	Red Green Blue z 18.94 znorm 14.76 sky 14.8 14.9 15.2 S/N 13.9 22.1 24.3 S/N(c) 12.7 20.6 23.2 SN(E/C) 0.94