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)
18720075	42	Red Green Blue z 18.18 znorm 14.12 sky 14.8 14.5 14.8 S/N 7.5 13.3 15.3 S/N(c) 13.3 4.8 21.5 SN(E/C) 0.63
18720076	42	Red Green Blue z 18.23 znorm 14.17 sky 14.8 15.0 14.8 S/N 7.8 13.3 15.7 S/N(c) 13.9 4.9 22.2 SN(E/C) 0.59
18720077	42	Red Green Blue z 18.03 znorm 13.97 sky 15.2 14.9 15.0 S/N 6.5 12.4 13.2 S/N(c) 12.1 4.5 19.9 SN(E/C) 0.64
18720078	42	Red Green Blue z 18.19 znorm 14.13 sky 14.9 14.9 14.9 S/N 6.9 13.2 13.9 S/N(c) 13.4 4.8 21.6 SN(E/C) 0.57
18720079	42	Red Green Blue z 18.11 znorm 14.05 sky 15.1 15.1 14.9 S/N 8.8 14.6 17.6 S/N(c) 12.7 4.7 21.0 SN(E/C) 0.59
18720080	42	Red Green Blue z 18.11 znorm 14.05 sky 15.0 14.8 15.0 S/N 8.9 14.3 17.8 S/N(c) 12.7 4.7 21.1 SN(E/C) 0.61
18720081	42	Red Green Blue z 18.18 znorm 14.12 sky 15.0 14.8 14.8 S/N 7.2 12.8 15.3 S/N(c) 12.9 4.7 21.4 SN(E/C) 0.62
18720082	42	Red Green Blue z 18.14 znorm 14.08 sky 14.7 14.7 15.0 S/N 6.9 12.7 15.2 S/N(c) 12.8 4.6 21.0 SN(E/C) 0.64