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)
19420017	94	Red Green Blue z 19.30 znorm 14.37 sky 14.6 14.2 14.3 S/N 22.8 32.7 36.9 S/N(c) 22.9 27.4 4.9 SN(E/C) 0.43
19420018	94	Red Green Blue z 19.39 znorm 14.46 sky 14.6 14.4 14.4 S/N 22.6 32.8 36.8 S/N(c) 23.8 28.8 5.1 SN(E/C) 0.35
19420019	94	Red Green Blue z 19.59 znorm 14.66 sky 14.7 14.4 14.4 S/N 24.5 35.6 39.8 S/N(c) 27.1 31.8 5.5 SN(E/C) 0.37
19420020	94	Red Green Blue z 19.59 znorm 14.66 sky 14.7 14.5 14.4 S/N 23.9 35.6 40.5 S/N(c) 28.6 33.4 5.7 SN(E/C) 0.32