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)
18660021	42	Red Green Blue z 17.63 znorm 13.57 sky 15.2 14.6 14.6 S/N 7.3 13.9 14.2 S/N(c) 8.5 10.7 6.9 SN(E/C) 1.03
18660022	42	Red Green Blue z 17.82 znorm 13.76 sky 14.9 14.8 14.9 S/N 8.3 15.0 15.6 S/N(c) 9.5 11.9 7.6 SN(E/C) 0.89
18660023	42	Red Green Blue z 17.86 znorm 13.80 sky 15.5 15.0 14.9 S/N 3.9 7.8 8.1 S/N(c) 9.0 11.4 7.3 SN(E/C) 0.93
18660024	42	Red Green Blue z 17.94 znorm 13.88 sky 15.2 14.9 14.9 S/N 4.0 8.4 8.8 S/N(c) 9.5 11.7 7.8 SN(E/C) 1.00
18660025	42	Red Green Blue z 18.89 znorm 14.83 sky 14.7 14.8 14.6 S/N 12.5 22.0 24.0 S/N(c) 18.8 20.8 13.8 SN(E/C) 0.81
18660026	42	Red Green Blue z 18.93 znorm 14.87 sky 15.1 15.0 14.6 S/N 12.9 22.4 24.3 S/N(c) 19.6 21.1 14.0 SN(E/C) 0.80
18660027	42	Red Green Blue z 18.06 znorm 14.00 sky 15.3 15.0 14.9 S/N 9.1 16.5 17.3 S/N(c) 10.9 13.4 8.6 SN(E/C) 0.93
18660028	42	Red Green Blue z 18.15 znorm 14.10 sky 15.0 15.1 14.9 S/N 9.3 17.1 17.9 S/N(c) 11.5 14.0 9.0 SN(E/C) 0.90
18660029	42	Red Green Blue z 18.10 znorm 14.04 sky 15.0 15.1 15.2 S/N 5.4 11.3 11.8 S/N(c) 10.7 13.2 8.5 SN(E/C) 0.95
18660030	42	Red Green Blue z 18.08 znorm 14.02 sky 15.5 15.2 14.8 S/N 5.6 11.2 11.8 S/N(c) 10.5 12.9 8.4 SN(E/C) 0.89
18660031	42	Red Green Blue z 18.92 znorm 14.86 sky 15.0 14.9 14.8 S/N 12.8 21.7 23.4 S/N(c) 19.4 21.1 13.9 SN(E/C) 0.83
18660032	42	Red Green Blue z 18.92 znorm 14.86 sky 14.9 14.8 14.8 S/N 12.5 21.7 23.4 S/N(c) 19.5 21.2 13.8 SN(E/C) 0.80
18660033	42	Red Green Blue z 18.21 znorm 14.15 sky 15.3 15.2 15.2 S/N 9.6 17.4 18.0 S/N(c) 11.9 14.5 9.3 SN(E/C) 0.94
18660034	42	Red Green Blue z 18.27 znorm 14.21 sky 15.3 15.1 15.0 S/N 10.2 17.8 18.6 S/N(c) 12.6 15.0 9.7 SN(E/C) 0.87
18660035	42	Red Green Blue z 18.36 znorm 14.30 sky 15.2 15.2 15.0 S/N 7.8 14.9 15.8 S/N(c) 12.8 15.3 9.9 SN(E/C) 0.95
18660036	42	Red Green Blue z 18.38 znorm 14.32 sky 15.0 15.0 15.0 S/N 7.7 14.7 15.5 S/N(c) 13.1 15.5 10.0 SN(E/C) 0.88
18660037	42	Red Green Blue z 18.87 znorm 14.81 sky 15.0 14.9 14.9 S/N 12.3 21.2 23.0 S/N(c) 18.7 20.7 13.5 SN(E/C) 0.81
18660038	42	Red Green Blue z 18.86 znorm 14.80 sky 14.9 14.9 14.7 S/N 12.1 21.4 23.5 S/N(c) 18.7 20.7 13.6 SN(E/C) 0.86