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)
18740053	47	Red Green Blue z 18.74 znorm 14.56 sky 15.0 14.6 14.7 S/N 15.1 22.9 26.7 S/N(c) 21.8 8.4 31.5 SN(E/C) 0.40
18740054	47	Red Green Blue z 18.80 znorm 14.62 sky 14.7 14.7 14.9 S/N 15.1 23.4 27.2 S/N(c) 22.0 8.4 31.8 SN(E/C) 0.41
18740055	47	Red Green Blue z 18.76 znorm 14.58 sky 14.8 14.6 14.9 S/N 15.2 23.1 26.8 S/N(c) 21.9 8.4 31.7 SN(E/C) 0.39
18740056	47	Red Green Blue z 18.78 znorm 14.60 sky 14.9 14.8 15.0 S/N 15.1 23.4 26.8 S/N(c) 22.1 8.5 32.0 SN(E/C) 0.39
18740057	47	Red Green Blue z 18.93 znorm 14.75 sky 14.9 14.8 15.0 S/N 16.0 24.8 28.9 S/N(c) 23.5 9.0 34.1 SN(E/C) 0.36
18740058	47	Red Green Blue z 18.80 znorm 14.62 sky 14.9 14.9 15.0 S/N 15.0 23.1 26.9 S/N(c) 21.9 8.4 31.8 SN(E/C) 0.38
18740059	47	Red Green Blue z 18.87 znorm 14.69 sky 15.0 14.8 14.8 S/N 15.8 24.3 28.3 S/N(c) 23.2 8.8 33.4 SN(E/C) 0.38
18740060	47	Red Green Blue z 18.96 znorm 14.78 sky 15.0 14.8 14.8 S/N 16.4 25.2 29.4 S/N(c) 24.0 9.1 34.5 SN(E/C) 0.37