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)
21990085	42	Red Green Blue z 18.27 znorm 14.22 sky 14.7 14.5 15.1 S/N 11.2 18.2 21.4 S/N(c) 14.5 18.1 19.8 SN(E/C) 0.42
21990086	42	Red Green Blue z 18.27 znorm 14.21 sky 14.6 14.8 14.8 S/N 11.3 18.2 21.3 S/N(c) 14.1 18.1 19.3 SN(E/C) 0.42