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)
18560038	94	Red Green Blue z 19.51 znorm 14.57 sky 14.9 14.7 14.5 S/N 22.1 32.2 36.5 S/N(c) 35.7 30.8 24.3 SN(E/C) 0.89
18560039	94	Red Green Blue z 19.44 znorm 14.51 sky 15.1 14.9 14.7 S/N 21.0 31.1 35.0 S/N(c) 33.9 29.4 23.3 SN(E/C) 0.91