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)
21870042	42	Red Green Blue z 18.55 znorm 14.49 sky 14.2 14.1 14.3 S/N 12.7 19.1 23.3 S/N(c) 11.1 6.9 6.8 SN(E/C) 0.00
21870043	42	Red Green Blue z 18.65 znorm 14.59 sky 14.0 14.2 14.2 S/N 13.2 20.0 24.0 S/N(c) 11.8 7.3 7.0 SN(E/C) 0.00
21870044	42	Red Green Blue z 18.84 znorm 14.78 sky 13.8 14.3 14.2 S/N 13.4 20.3 24.9 S/N(c) 13.5 8.2 7.8 SN(E/C) 0.00
21870045	42	Red Green Blue z 18.85 znorm 14.79 sky 13.9 14.2 14.1 S/N 13.6 20.8 24.9 S/N(c) 13.7 8.1 7.9 SN(E/C) 0.00
21870046	42	Red Green Blue z 17.79 znorm 13.73 sky 13.9 14.4 14.4 S/N 7.9 12.9 16.0 S/N(c) 6.8 4.4 4.5 SN(E/C) 0.00
21870047	42	Red Green Blue z 17.75 znorm 13.69 sky 14.3 14.5 14.5 S/N 7.8 12.8 15.7 S/N(c) 6.7 4.3 4.5 SN(E/C) 0.00