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)
19910011	47	Red Green Blue z 18.92 znorm 14.74 sky 14.3 14.3 14.1 S/N 17.5 26.2 30.4 S/N(c) 7.1 8.6 28.2 SN(E/C) 0.32
19910012	47	Red Green Blue z 18.85 znorm 14.67 sky 14.4 14.4 14.6 S/N 16.8 25.3 29.4 S/N(c) 6.8 8.3 27.2 SN(E/C) 0.33
19910013	47	Red Green Blue z 18.89 znorm 14.71 sky 14.5 14.5 14.4 S/N 16.6 25.1 29.0 S/N(c) 7.0 8.5 27.9 SN(E/C) 0.35
19910014	47	Red Green Blue z 18.93 znorm 14.75 sky 14.3 14.4 14.5 S/N 16.9 25.5 29.7 S/N(c) 7.0 8.5 27.8 SN(E/C) 0.34
19910015	47	Red Green Blue z 19.02 znorm 14.84 sky 14.5 14.6 14.4 S/N 17.7 26.2 30.5 S/N(c) 7.3 8.9 29.1 SN(E/C) 0.32
19910016	47	Red Green Blue z 19.05 znorm 14.87 sky 14.5 14.4 14.4 S/N 17.7 26.3 30.6 S/N(c) 7.5 9.1 29.8 SN(E/C) 0.33
19910017	47	Red Green Blue z 19.07 znorm 14.89 sky 14.6 14.5 14.5 S/N 17.7 26.3 30.7 S/N(c) 7.5 9.2 29.9 SN(E/C) 0.31
19910018	47	Red Green Blue z 19.05 znorm 14.87 sky 14.5 14.5 14.5 S/N 17.7 26.2 30.1 S/N(c) 7.6 9.2 30.1 SN(E/C) 0.31