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)
18840073	47	Red Green Blue z 19.09 znorm 14.91 sky 14.8 14.5 14.4 S/N 18.2 26.0 32.7 S/N(c) 17.8 26.8 26.1 SN(E/C) 0.32
18840074	47	Red Green Blue z 19.12 znorm 14.94 sky 15.1 14.6 14.5 S/N 18.5 26.3 33.2 S/N(c) 18.2 27.3 26.7 SN(E/C) 0.32
18840075	47	Red Green Blue z 19.17 znorm 14.99 sky 14.9 14.7 14.9 S/N 18.7 26.7 33.6 S/N(c) 18.6 28.2 27.1 SN(E/C) 0.33
18840076	47	Red Green Blue z 19.15 znorm 14.97 sky 14.9 14.8 14.9 S/N 18.4 26.6 33.3 S/N(c) 18.5 28.1 27.0 SN(E/C) 0.31
18840077	47	Red Green Blue z 19.17 znorm 14.99 sky 14.9 14.7 14.9 S/N 18.7 26.9 33.6 S/N(c) 18.7 28.7 27.3 SN(E/C) 0.31
18840078	47	Red Green Blue z 19.19 znorm 15.01 sky 14.9 14.8 14.9 S/N 18.7 27.1 33.8 S/N(c) 18.8 28.6 27.4 SN(E/C) 0.28
18840079	47	Red Green Blue z 19.19 znorm 15.01 sky 15.0 14.8 14.7 S/N 18.7 27.0 33.5 S/N(c) 18.7 28.6 27.2 SN(E/C) 0.30
18840080	47	Red Green Blue z 19.20 znorm 15.02 sky 15.1 15.0 14.9 S/N 18.6 26.9 33.5 S/N(c) 18.8 28.9 27.4 SN(E/C) 0.33