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)
19120039	94	Red Green Blue z 19.57 znorm 14.64 sky 15.7 15.2 15.5 S/N 21.4 31.9 39.8 S/N(c) 28.3 41.8 15.6 SN(E/C) 0.31
19120040	94	Red Green Blue z 19.47 znorm 14.54 sky 15.3 15.2 15.8 S/N 19.9 29.9 37.3 S/N(c) 27.0 40.1 14.8 SN(E/C) 0.33