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)
21730092	94	Red Green Blue z 19.80 znorm 14.87 sky 14.0 14.1 14.0 S/N 24.3 33.1 40.1 S/N(c) 28.2 46.2 51.3 SN(E/C) 0.00
21730093	94	Red Green Blue z 19.87 znorm 14.94 sky 14.0 14.2 14.1 S/N 25.1 34.6 41.4 S/N(c) 29.8 49.1 50.4 SN(E/C) 0.00
21730094	94	Red Green Blue z 19.82 znorm 14.89 sky 14.0 14.3 14.1 S/N 24.6 33.8 40.5 S/N(c) 30.5 50.3 53.6 SN(E/C) 0.00
21730095	94	Red Green Blue z 18.49 znorm 13.56 sky 13.7 14.0 13.9 S/N 9.4 14.3 18.4 S/N(c) 13.9 23.8 25.6 SN(E/C) 0.00