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)
21720099	47	Red Green Blue z 18.93 znorm 14.75 sky 14.0 14.2 14.3 S/N 17.7 25.7 29.9 S/N(c) 36.3 23.3 11.8 SN(E/C) 0.26
21720100	47	Red Green Blue z 18.93 znorm 14.75 sky 14.0 14.3 14.3 S/N 17.6 25.7 29.8 S/N(c) 35.6 23.3 11.6 SN(E/C) 0.24
21720101	47	Red Green Blue z 19.08 znorm 14.90 sky 14.1 14.4 14.4 S/N 19.0 27.6 31.9 S/N(c) 40.0 25.7 11.7 SN(E/C) 0.24
21720102	47	Red Green Blue z 19.11 znorm 14.93 sky 14.5 14.6 14.4 S/N 19.4 28.2 32.6 S/N(c) 40.6 26.1 11.9 SN(E/C) 0.23