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)
21870033	42	Red Green Blue z 18.80 znorm 14.74 sky 14.2 14.4 14.4 S/N 14.3 21.7 25.8 S/N(c) 18.5 26.7 4.5 SN(E/C) 0.41
21870034	42	Red Green Blue z 18.88 znorm 14.82 sky 14.2 14.4 14.5 S/N 14.6 21.9 26.1 S/N(c) 19.4 27.5 4.7 SN(E/C) 0.42
21870035	42	Red Green Blue z 18.49 znorm 14.43 sky 14.2 14.5 14.5 S/N 8.1 14.5 17.7 S/N(c) 14.5 21.8 3.7 SN(E/C) 0.39
21870036	42	Red Green Blue z 18.47 znorm 14.41 sky 13.9 14.5 14.4 S/N 8.3 14.6 17.7 S/N(c) 14.1 21.2 3.6 SN(E/C) 0.53
21870037	42	Red Green Blue z 18.39 znorm 14.34 sky 14.5 14.6 14.5 S/N 12.7 20.7 24.9 S/N(c) 14.5 21.6 3.7 SN(E/C) 0.46
21870038	42	Red Green Blue z 18.43 znorm 14.37 sky 14.2 14.6 14.4 S/N 11.9 20.2 23.9 S/N(c) 14.5 22.0 3.7 SN(E/C) 0.45