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)
21740035	47	Red Green Blue z 18.66 znorm 14.48 sky 12.8 13.3 13.2 S/N 13.2 19.3 23.9 S/N(c) 27.2 46.1 26.9 SN(E/C) 0.00
21740036	47	Red Green Blue z 18.45 znorm 14.27 sky 12.7 13.2 13.0 S/N 11.6 17.0 21.2 S/N(c) 24.3 42.0 24.4 SN(E/C) 0.00
21740037	47	Red Green Blue z 18.62 znorm 14.44 sky 12.8 13.3 13.2 S/N 12.5 18.2 22.7 S/N(c) 26.1 46.0 26.7 SN(E/C) 0.00
21740038	47	Red Green Blue z 18.81 znorm 14.63 sky 13.1 13.6 13.4 S/N 14.3 20.8 25.7 S/N(c) 28.9 49.9 29.0 SN(E/C) 0.00