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)
18640022	42	Red Green Blue z 17.20 znorm 13.14 sky 14.9 14.5 14.6 S/N 2.1 4.7 5.4 S/N(c) 7.9 11.6 9.9 SN(E/C) 0.89
18640023	42	Red Green Blue z 17.39 znorm 13.33 sky 15.3 14.8 14.6 S/N 2.6 5.3 5.3 S/N(c) 8.7 12.8 10.9 SN(E/C) 0.97
18640024	42	Red Green Blue z 17.75 znorm 13.69 sky 14.8 14.9 14.7 S/N 10.8 19.0 20.9 S/N(c) 10.7 14.9 12.6 SN(E/C) 0.87
18640025	42	Red Green Blue z 17.79 znorm 13.73 sky 14.8 14.7 14.8 S/N 10.6 19.2 21.1 S/N(c) 10.9 15.2 12.9 SN(E/C) 0.88
18640026	42	Red Green Blue z 18.04 znorm 13.98 sky 15.1 15.0 14.8 S/N 6.5 13.2 13.9 S/N(c) 13.3 18.2 15.3 SN(E/C) 0.84
18640027	42	Red Green Blue z 18.17 znorm 14.11 sky 14.9 14.7 14.7 S/N 7.3 14.4 15.1 S/N(c) 14.4 19.3 16.4 SN(E/C) 0.81
18640028	42	Red Green Blue z 17.38 znorm 13.32 sky 15.2 15.1 14.8 S/N 2.8 6.5 6.7 S/N(c) 8.6 12.8 10.9 SN(E/C) 0.94
18640029	42	Red Green Blue z 17.28 znorm 13.23 sky 14.9 15.0 14.9 S/N 2.4 5.6 6.2 S/N(c) 8.0 12.0 10.4 SN(E/C) 0.89
18640030	42	Red Green Blue z 17.63 znorm 13.57 sky 15.0 15.0 14.8 S/N 9.4 17.7 19.1 S/N(c) 10.6 14.8 12.7 SN(E/C) 0.88
18640031	42	Red Green Blue z 17.71 znorm 13.65 sky 15.1 14.9 14.8 S/N 10.3 18.8 20.2 S/N(c) 11.1 15.6 13.3 SN(E/C) 0.86
18640032	42	Red Green Blue z 17.96 znorm 13.91 sky 15.0 15.0 14.6 S/N 6.4 12.9 13.1 S/N(c) 12.8 17.5 14.7 SN(E/C) 0.81
18640033	42	Red Green Blue z 18.15 znorm 14.09 sky 15.1 14.9 14.6 S/N 7.2 13.8 14.4 S/N(c) 14.2 19.3 16.1 SN(E/C) 0.81
18640034	42	Red Green Blue z 18.03 znorm 13.97 sky 15.3 14.9 14.7 S/N 5.8 12.0 12.9 S/N(c) 13.6 18.6 15.7 SN(E/C) 0.83
18640035	42	Red Green Blue z 17.97 znorm 13.91 sky 15.2 14.9 14.8 S/N 5.4 10.9 11.5 S/N(c) 13.3 18.2 15.2 SN(E/C) 0.90
18640036	42	Red Green Blue z 17.97 znorm 13.91 sky 15.0 15.0 14.8 S/N 10.8 19.7 21.5 S/N(c) 13.1 18.1 15.3 SN(E/C) 0.86
18640037	42	Red Green Blue z 18.01 znorm 13.95 sky 14.8 15.0 14.9 S/N 11.1 19.8 21.6 S/N(c) 13.4 18.6 15.5 SN(E/C) 0.86
18640038	42	Red Green Blue z 17.88 znorm 13.83 sky 14.9 15.0 14.8 S/N 5.6 11.8 12.3 S/N(c) 11.9 16.6 14.0 SN(E/C) 0.86
18640039	42	Red Green Blue z 17.91 znorm 13.85 sky 15.1 15.1 14.8 S/N 5.7 12.2 12.2 S/N(c) 12.2 16.8 14.1 SN(E/C) 0.82
18640040	42	Red Green Blue z 17.90 znorm 13.84 sky 14.8 14.9 14.9 S/N 5.8 11.1 11.8 S/N(c) 12.7 17.5 14.6 SN(E/C) 0.86
18640041	42	Red Green Blue z 18.12 znorm 14.06 sky 15.1 15.1 14.9 S/N 6.0 12.3 13.4 S/N(c) 14.7 19.7 16.5 SN(E/C) 0.82
18640042	42	Red Green Blue z 17.84 znorm 13.78 sky 15.7 15.3 14.8 S/N 8.8 16.1 17.4 S/N(c) 12.3 17.0 14.1 SN(E/C) 0.91
18640043	42	Red Green Blue z 17.89 znorm 13.83 sky 14.9 15.0 15.2 S/N 9.3 17.1 18.1 S/N(c) 12.7 17.6 14.5 SN(E/C) 0.86
18640044	42	Red Green Blue z 17.57 znorm 13.51 sky 15.2 15.2 15.0 S/N 4.8 10.3 10.1 S/N(c) 9.7 14.0 11.6 SN(E/C) 0.87
18640045	42	Red Green Blue z 17.62 znorm 13.56 sky 15.3 15.4 14.9 S/N 4.7 10.5 10.2 S/N(c) 10.1 14.6 11.9 SN(E/C) 0.89