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)
18020021	42	Red Green Blue z 18.04 znorm 13.98 sky 14.7 14.6 14.6 S/N 8.3 14.7 16.3 S/N(c) 11.4 10.0 11.1 SN(E/C) 0.84
18020022	42	Red Green Blue z 18.00 znorm 13.94 sky 14.8 14.8 14.7 S/N 8.1 14.1 16.3 S/N(c) 11.1 9.8 10.7 SN(E/C) 0.84
18020023	42	Red Green Blue z 17.94 znorm 13.88 sky 14.8 14.7 14.7 S/N 7.2 13.1 15.0 S/N(c) 10.7 9.5 10.6 SN(E/C) 0.97
18020024	42	Red Green Blue z 18.00 znorm 13.94 sky 15.0 14.7 14.7 S/N 7.8 14.2 15.8 S/N(c) 11.3 9.9 11.0 SN(E/C) 0.88
18020025	42	Red Green Blue z 18.86 znorm 14.80 sky 14.6 14.6 14.5 S/N 15.5 23.6 28.2 S/N(c) 18.6 14.9 17.0 SN(E/C) 0.61
18020026	42	Red Green Blue z 18.85 znorm 14.79 sky 14.8 14.6 14.4 S/N 15.6 23.3 28.3 S/N(c) 18.5 15.0 17.0 SN(E/C) 0.67
18020027	42	Red Green Blue z 18.12 znorm 14.06 sky 15.0 15.0 14.7 S/N 8.7 15.7 17.8 S/N(c) 11.9 10.5 11.4 SN(E/C) 0.73
18020028	42	Red Green Blue z 18.15 znorm 14.10 sky 15.0 14.7 14.8 S/N 9.2 15.7 17.8 S/N(c) 12.3 10.9 11.8 SN(E/C) 0.84
18020029	42	Red Green Blue z 18.11 znorm 14.05 sky 15.1 14.6 14.7 S/N 8.5 14.8 17.2 S/N(c) 12.3 10.6 11.8 SN(E/C) 0.71
18020030	42	Red Green Blue z 18.07 znorm 14.01 sky 14.7 14.8 14.6 S/N 8.4 14.5 16.7 S/N(c) 12.0 10.5 11.6 SN(E/C) 0.95
18020031	42	Red Green Blue z 18.69 znorm 14.63 sky 14.7 14.5 14.5 S/N 13.9 21.3 25.5 S/N(c) 17.1 14.3 15.8 SN(E/C) 0.62
18020032	42	Red Green Blue z 18.59 znorm 14.54 sky 14.6 14.5 14.4 S/N 13.2 20.9 23.8 S/N(c) 16.6 13.9 15.2 SN(E/C) 0.69
18020033	42	Red Green Blue z 18.38 znorm 14.32 sky 14.7 14.6 14.5 S/N 11.0 18.3 20.8 S/N(c) 14.1 12.0 13.1 SN(E/C) 0.75
18020034	42	Red Green Blue z 18.34 znorm 14.29 sky 14.7 14.6 14.5 S/N 10.6 17.4 19.8 S/N(c) 13.7 11.9 13.0 SN(E/C) 0.78
18020035	42	Red Green Blue z 18.24 znorm 14.18 sky 14.8 14.8 14.6 S/N 9.1 16.1 17.7 S/N(c) 13.7 11.5 12.9 SN(E/C) 0.55
18020036	42	Red Green Blue z 18.26 znorm 14.21 sky 15.0 14.8 14.6 S/N 9.1 16.3 18.2 S/N(c) 13.4 11.7 12.9 SN(E/C) 0.86
18020037	42	Red Green Blue z 18.53 znorm 14.48 sky 14.7 14.8 14.6 S/N 12.6 20.8 23.7 S/N(c) 15.8 13.3 14.9 SN(E/C) 0.69
18020038	42	Red Green Blue z 18.53 znorm 14.47 sky 14.8 14.8 14.5 S/N 12.5 20.8 23.5 S/N(c) 16.1 13.4 14.8 SN(E/C) 0.57