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)
17870081	47	Red Green Blue z 18.10 znorm 13.92 sky 14.0 13.9 13.9 S/N 7.6 13.7 16.4 S/N(c) 9.8 8.5 6.6 SN(E/C) 0.90
17870082	47	Red Green Blue z 17.67 znorm 13.49 sky 14.0 13.9 14.1 S/N 5.2 10.0 12.3 S/N(c) 7.0 6.5 5.1 SN(E/C) 0.97
17870083	47	Red Green Blue z 16.99 znorm 12.81 sky 14.2 14.1 14.3 S/N 2.9 6.0 7.5 S/N(c) 4.1 4.2 3.3 SN(E/C) 1.02
17870084	47	Red Green Blue z 16.85 znorm 12.67 sky 14.1 14.2 14.3 S/N 2.3 5.3 6.7 S/N(c) 3.6 3.8 3.0 SN(E/C) 1.06
17870085	47	Red Green Blue z 16.99 znorm 12.81 sky 14.5 14.3 14.6 S/N 2.8 6.3 7.6 S/N(c) 4.2 4.3 3.3 SN(E/C) 1.04
17870086	47	Red Green Blue z 16.86 znorm 12.68 sky 14.6 14.5 14.5 S/N 2.7 5.8 7.0 S/N(c) 3.8 3.9 3.1 SN(E/C) 1.01
17870087	47	Red Green Blue z 17.10 znorm 12.92 sky 14.8 14.6 14.6 S/N 3.3 7.3 8.4 S/N(c) 4.6 4.6 3.6 SN(E/C) 0.97
17870088	47	Red Green Blue z 17.46 znorm 13.28 sky 14.8 14.7 14.8 S/N 4.5 9.5 11.2 S/N(c) 5.9 5.9 4.5 SN(E/C) 1.02