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)
19730011	47	Red Green Blue z 18.98 znorm 14.80 sky 14.3 14.1 14.0 S/N 7.3 13.0 13.1 S/N(c) 14.4 17.8 5.9 SN(E/C) 0.50
19730012	47	Red Green Blue z 18.94 znorm 14.76 sky 14.5 14.4 14.3 S/N 8.5 14.5 14.9 S/N(c) 14.1 17.6 5.7 SN(E/C) 0.50
19730013	42	Red Green Blue z 18.06 znorm 14.00 sky 14.7 14.4 14.3 S/N 13.8 22.0 23.2 S/N(c) 8.2 11.4 3.6 SN(E/C) 0.63
19730014	42	Red Green Blue z 18.14 znorm 14.08 sky 14.9 14.7 14.5 S/N 13.8 22.3 23.2 S/N(c) 8.4 11.9 3.8 SN(E/C) 0.62
19730015	42	Red Green Blue z 18.13 znorm 14.07 sky 14.6 14.7 14.7 S/N 2.5 6.1 6.0 S/N(c) 8.3 11.5 3.7 SN(E/C) 0.73
19730016	42	Red Green Blue z 18.16 znorm 14.10 sky 14.7 14.9 14.9 S/N 2.1 5.0 4.9 S/N(c) 8.4 11.8 3.8 SN(E/C) 0.73
19730017	42	Red Green Blue z 18.74 znorm 14.68 sky 14.7 14.8 14.7 S/N 1.4 3.2 2.9 S/N(c) 12.1 15.5 5.0 SN(E/C) 0.51
19730018	42	Red Green Blue z 18.68 znorm 14.62 sky 14.8 15.0 14.8 S/N 1.0 2.6 2.8 S/N(c) 11.7 15.1 4.9 SN(E/C) 0.52
19730019	42	Red Green Blue z 18.23 znorm 14.17 sky 14.8 14.9 14.7 S/N 13.7 22.2 23.0 S/N(c) 9.0 12.7 4.1 SN(E/C) 0.63
19730020	42	Red Green Blue z 18.29 znorm 14.23 sky 15.0 14.9 14.9 S/N 12.9 21.4 22.3 S/N(c) 9.5 13.2 4.2 SN(E/C) 0.61
19730021	42	Red Green Blue z 18.24 znorm 14.18 sky 15.0 15.1 14.9 S/N 1.1 2.7 2.6 S/N(c) 9.1 12.4 4.0 SN(E/C) 0.69
19730022	42	Red Green Blue z 18.26 znorm 14.20 sky 15.2 15.0 14.9 S/N 1.3 3.1 3.0 S/N(c) 9.2 12.5 4.0 SN(E/C) 0.71
19730023	42	Red Green Blue z 18.51 znorm 14.45 sky 15.2 15.0 15.0 S/N 1.2 2.8 2.4 S/N(c) 10.7 14.1 4.6 SN(E/C) 0.55
19730024	42	Red Green Blue z 18.48 znorm 14.42 sky 15.1 14.8 15.0 S/N 1.1 2.9 2.0 S/N(c) 10.5 14.0 4.5 SN(E/C) 0.56
19730025	42	Red Green Blue z 18.43 znorm 14.38 sky 15.1 14.9 14.8 S/N 10.4 18.1 18.7 S/N(c) 10.5 14.0 4.5 SN(E/C) 0.58
19730026	42	Red Green Blue z 18.43 znorm 14.37 sky 14.8 14.8 14.8 S/N 9.8 17.4 18.1 S/N(c) 10.5 13.9 4.5 SN(E/C) 0.62
19730027	42	Red Green Blue z 18.36 znorm 14.31 sky 14.8 14.9 15.1 S/N 2.0 4.3 4.1 S/N(c) 9.9 13.1 4.2 SN(E/C) 0.60
19730028	42	Red Green Blue z 18.36 znorm 14.30 sky 14.5 14.8 15.0 S/N 2.0 4.1 4.0 S/N(c) 9.6 12.9 4.2 SN(E/C) 0.67
19730029	42	Red Green Blue z 18.43 znorm 14.37 sky 15.1 14.9 14.8 S/N 0.9 2.4 1.9 S/N(c) 9.8 13.2 4.3 SN(E/C) 0.58
19730030	42	Red Green Blue z 18.34 znorm 14.29 sky 14.8 14.8 14.9 S/N 1.0 2.1 1.5 S/N(c) 9.3 12.8 4.1 SN(E/C) 0.60