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)
19000020	94	Red Green Blue z 19.28 znorm 14.34 sky 15.6 15.3 15.7 S/N 17.2 22.1 30.6 S/N(c) 22.3 9.9 17.0 SN(E/C) 0.24
19000021	94	Red Green Blue z 19.24 znorm 14.31 sky 15.9 15.5 15.7 S/N 17.1 22.2 30.4 S/N(c) 22.5 10.0 17.2 SN(E/C) 0.24
19000022	94	Red Green Blue z 19.36 znorm 14.43 sky 15.5 15.6 15.6 S/N 17.9 23.4 32.0 S/N(c) 23.4 10.5 18.0 SN(E/C) 0.22
19000023	94	Red Green Blue z 19.49 znorm 14.55 sky 15.6 15.4 15.8 S/N 18.8 24.5 33.5 S/N(c) 25.2 11.4 19.5 SN(E/C) 0.20