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 19.42 znorm 14.49 sky 13.9 14.1 14.1 S/N 22.9 32.3 37.2 S/N(c) 23.2 27.0 4.9 SN(E/C) 0.28
19420018	94	Red Green Blue z 19.51 znorm 14.58 sky 13.9 14.2 14.2 S/N 22.6 32.1 37.0 S/N(c) 24.0 28.4 5.1 SN(E/C) 0.25
19420019	94	Red Green Blue z 19.70 znorm 14.77 sky 14.0 14.3 14.2 S/N 24.3 35.0 40.1 S/N(c) 27.4 31.5 5.5 SN(E/C) 0.23
19420020	94	Red Green Blue z 19.70 znorm 14.77 sky 14.0 14.3 14.3 S/N 23.9 35.0 40.8 S/N(c) 28.8 33.0 5.7 SN(E/C) 0.23