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)
6270018	47	Red Green Blue z 19.13 znorm 14.95 sky 14.9 14.8 14.5 S/N 18.3 29.6 30.6 S/N(c) 16.6 27.8 29.1 SN(E/C) 0.91
6270019	47	Red Green Blue z 19.13 znorm 14.95 sky 14.9 15.1 15.1 S/N 18.0 29.1 30.9 S/N(c) 16.5 27.3 29.1 SN(E/C) 0.92
6270020	47	Red Green Blue z 19.14 znorm 14.96 sky 14.9 15.1 15.2 S/N 18.1 29.3 30.9 S/N(c) 16.4 27.5 29.3 SN(E/C) 0.91
6270021	47	Red Green Blue z 19.16 znorm 14.98 sky 14.8 15.2 15.2 S/N 17.9 29.1 31.1 S/N(c) 16.3 27.3 29.3 SN(E/C) 0.88