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)
8740017	47	Red Green Blue z 12.80 znorm 8.62 sky 12.7 12.7 12.7 S/N 0.1 -0.1 -0.3 S/N(c) 0.0 0.0 0.0 SN(E/C)*****
8740018	47	Red Green Blue z 13.13 znorm 8.95 sky 12.5 12.5 12.6 S/N -0.0 0.2 -0.6 S/N(c) 0.0 0.0 0.0 SN(E/C)-4.64