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)
17840048	47	Red Green Blue z 19.05 znorm 14.87 sky 14.6 14.3 14.6 S/N 13.2 21.9 24.7 S/N(c) 27.0 32.6 38.0 SN(E/C) 0.75
17840049	47	Red Green Blue z 19.11 znorm 14.93 sky 14.7 14.3 14.5 S/N 12.4 20.8 23.7 S/N(c) 26.8 32.8 37.7 SN(E/C) 0.75
17840050	47	Red Green Blue z 19.21 znorm 15.03 sky 14.8 14.5 14.5 S/N 13.8 23.1 26.4 S/N(c) 27.6 33.7 39.4 SN(E/C) 0.65
17840051	47	Red Green Blue z 19.18 znorm 15.00 sky 14.5 14.5 14.5 S/N 13.8 23.3 26.4 S/N(c) 27.3 33.6 38.6 SN(E/C) 0.74
17840052	47	Red Green Blue z 19.21 znorm 15.03 sky 14.6 14.6 14.6 S/N 14.2 23.6 27.1 S/N(c) 28.0 34.2 39.0 SN(E/C) 0.73
17840053	47	Red Green Blue z 19.20 znorm 15.02 sky 14.6 14.7 14.5 S/N 13.6 22.8 25.8 S/N(c) 28.1 33.6 38.4 SN(E/C) 0.76
17840054	47	Red Green Blue z 19.21 znorm 15.03 sky 14.7 14.5 14.6 S/N 14.1 23.4 26.5 S/N(c) 27.8 33.8 39.6 SN(E/C) 0.73
17840055	47	Red Green Blue z 19.21 znorm 15.03 sky 14.5 14.6 14.6 S/N 13.6 22.9 25.9 S/N(c) 27.9 33.7 39.5 SN(E/C) 0.71