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)
1890040	50	Red Green Blue z 18.50 znorm 14.25 sky 13.8 13.4 13.5 S/N 13.9 19.4 21.0 S/N(c) 12.2 17.9 19.6 SN(E/C) 0.50
1890041	50	Red Green Blue z 18.48 znorm 14.23 sky 13.8 13.5 13.6 S/N 13.5 19.4 20.7 S/N(c) 12.0 17.6 19.3 SN(E/C) 0.47
1890042	50	Red Green Blue z 18.38 znorm 14.13 sky 13.8 13.6 13.7 S/N 12.8 18.4 19.6 S/N(c) 11.3 16.7 18.4 SN(E/C) 0.46
1890043	50	Red Green Blue z 18.40 znorm 14.15 sky 13.8 13.5 13.6 S/N 13.1 18.8 19.9 S/N(c) 11.5 17.1 18.8 SN(E/C) 0.48
1890044	50	Red Green Blue z 18.43 znorm 14.18 sky 13.8 13.7 13.7 S/N 13.2 19.2 20.2 S/N(c) 11.8 17.2 19.0 SN(E/C) 0.47
1890045	50	Red Green Blue z 18.32 znorm 14.07 sky 13.9 13.5 13.7 S/N 12.4 18.0 19.1 S/N(c) 10.8 16.3 17.7 SN(E/C) 0.47
1890046	50	Red Green Blue z 18.38 znorm 14.13 sky 13.9 13.5 13.7 S/N 12.9 18.5 19.9 S/N(c) 11.3 16.8 18.3 SN(E/C) 0.48
1890047	50	Red Green Blue z 18.24 znorm 14.00 sky 13.8 13.6 13.7 S/N 11.6 17.1 18.7 S/N(c) 10.2 15.5 17.2 SN(E/C) 0.51
1890048	50	Red Green Blue z 18.21 znorm 13.96 sky 14.0 13.7 13.8 S/N 11.5 16.9 18.3 S/N(c) 10.1 15.3 16.9 SN(E/C) 0.55
1890049	50	Red Green Blue z 18.31 znorm 14.06 sky 13.9 13.7 13.7 S/N 12.1 17.6 18.9 S/N(c) 10.7 16.0 17.5 SN(E/C) 0.54