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)
1660052	50	Red Green Blue z 19.14 znorm 14.90 sky 14.3 14.0 14.0 S/N 15.9 24.2 29.4 S/N(c) 14.3 22.9 28.0 SN(E/C) 0.87
1660053	50	Red Green Blue z 19.07 znorm 14.82 sky 14.6 14.3 14.3 S/N 15.1 23.7 28.3 S/N(c) 13.7 22.1 27.1 SN(E/C) 0.88
1660054	50	Red Green Blue z 19.08 znorm 14.83 sky 14.5 14.2 14.3 S/N 15.1 23.7 27.6 S/N(c) 13.6 22.3 26.6 SN(E/C) 0.89
1660055	50	Red Green Blue z 19.04 znorm 14.80 sky 14.3 14.2 14.2 S/N 14.9 23.5 26.9 S/N(c) 13.4 22.5 25.9 SN(E/C) 0.91
1660056	50	Red Green Blue z 19.10 znorm 14.85 sky 14.5 14.3 14.2 S/N 15.1 24.3 27.1 S/N(c) 13.8 22.7 25.9 SN(E/C) 0.90
1660057	50	Red Green Blue z 18.87 znorm 14.62 sky 13.9 13.9 13.8 S/N 12.6 20.8 23.5 S/N(c) 11.2 18.9 23.0 SN(E/C) 0.88
1660058	50	Red Green Blue z 19.09 znorm 14.84 sky 14.4 14.4 14.3 S/N 15.0 24.5 26.6 S/N(c) 13.6 22.5 25.8 SN(E/C) 0.89