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)
17730017	42	Red Green Blue z 17.94 znorm 13.88 sky 14.6 14.4 14.7 S/N 8.2 14.6 16.6 S/N(c) 12.3 13.7 13.3 SN(E/C) 0.98
17730018	42	Red Green Blue z 17.89 znorm 13.84 sky 14.6 14.6 14.7 S/N 7.7 14.1 15.9 S/N(c) 12.2 13.3 13.0 SN(E/C) 0.96
17730019	42	Red Green Blue z 17.95 znorm 13.89 sky 15.0 14.7 14.6 S/N 6.5 12.1 13.2 S/N(c) 13.2 13.9 13.7 SN(E/C) 0.97
17730020	42	Red Green Blue z 17.97 znorm 13.91 sky 14.6 14.7 14.6 S/N 6.7 12.7 13.9 S/N(c) 13.2 14.4 13.9 SN(E/C) 0.96
17730021	42	Red Green Blue z 18.86 znorm 14.81 sky 14.6 14.6 14.5 S/N 15.9 25.0 28.6 S/N(c) 22.8 22.5 22.0 SN(E/C) 0.91
17730022	42	Red Green Blue z 18.85 znorm 14.79 sky 14.6 14.5 14.5 S/N 15.9 25.2 28.6 S/N(c) 22.5 22.5 21.4 SN(E/C) 0.90
17730023	42	Red Green Blue z 18.06 znorm 14.00 sky 14.9 14.9 14.7 S/N 9.0 15.9 17.9 S/N(c) 13.6 14.7 14.6 SN(E/C) 0.93
17730024	42	Red Green Blue z 18.18 znorm 14.13 sky 14.6 14.7 14.7 S/N 10.0 17.0 19.4 S/N(c) 14.7 15.7 15.2 SN(E/C) 0.93