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)
17740039	42	Red Green Blue z 18.59 znorm 14.54 sky 14.5 14.2 14.5 S/N 13.7 20.9 24.4 S/N(c) 22.1 22.2 14.7 SN(E/C) 0.80
17740040	42	Red Green Blue z 18.54 znorm 14.48 sky 14.6 14.3 14.6 S/N 13.6 20.8 23.6 S/N(c) 20.6 21.0 14.0 SN(E/C) 0.88
17740041	42	Red Green Blue z 18.53 znorm 14.47 sky 14.6 14.6 14.6 S/N 11.4 18.7 21.8 S/N(c) 22.0 22.2 14.6 SN(E/C) 0.88
17740042	42	Red Green Blue z 18.38 znorm 14.32 sky 14.7 14.6 14.6 S/N 10.4 17.4 20.0 S/N(c) 20.2 20.7 13.7 SN(E/C) 0.94
17740043	42	Red Green Blue z 18.32 znorm 14.26 sky 14.6 14.6 14.7 S/N 10.2 17.9 20.4 S/N(c) 18.3 19.1 12.7 SN(E/C) 0.90
17740044	42	Red Green Blue z 18.32 znorm 14.26 sky 15.0 14.8 14.7 S/N 10.5 17.8 20.8 S/N(c) 18.2 19.2 12.6 SN(E/C) 0.91