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)
21870011	42	Red Green Blue z 18.40 znorm 14.34 sky 13.9 14.3 14.2 S/N 12.7 19.0 22.9 S/N(c) 13.4 12.5 8.9 SN(E/C) 0.00
21870012	42	Red Green Blue z 18.45 znorm 14.39 sky 14.4 14.7 14.6 S/N 12.8 18.9 23.6 S/N(c) 14.0 13.0 9.1 SN(E/C) 0.00
21870013	42	Red Green Blue z 18.79 znorm 14.74 sky 14.1 14.5 14.4 S/N 13.7 20.8 26.1 S/N(c) 17.2 15.9 10.9 SN(E/C) 0.00
21870014	42	Red Green Blue z 18.70 znorm 14.64 sky 14.3 14.7 14.5 S/N 13.2 20.1 25.2 S/N(c) 16.5 15.4 10.5 SN(E/C) 0.00