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)
12840015	47	Red Green Blue z 18.76 znorm 14.58 sky 13.7 13.6 13.6 S/N 16.0 22.3 22.2 S/N(c) 14.8 21.0 20.6 SN(E/C) 0.87
12840016	47	Red Green Blue z 18.92 znorm 14.74 sky 13.7 13.7 13.7 S/N 17.4 24.1 24.0 S/N(c) 16.2 22.6 22.5 SN(E/C) 0.89
12840017	47	Red Green Blue z 18.88 znorm 14.70 sky 13.7 13.6 13.7 S/N 17.0 23.3 23.7 S/N(c) 15.9 22.0 21.9 SN(E/C) 0.92
12840018	47	Red Green Blue z 18.99 znorm 14.81 sky 13.8 13.6 13.7 S/N 17.9 24.7 25.1 S/N(c) 16.8 23.3 23.2 SN(E/C) 0.94