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)
19900021	47	Red Green Blue z 19.01 znorm 14.83 sky 14.3 14.3 14.4 S/N 21.9 31.5 36.3 S/N(c) 27.7 40.8 22.6 SN(E/C) 0.45
19900022	47	Red Green Blue z 19.08 znorm 14.90 sky 14.6 14.5 14.5 S/N 22.2 31.8 36.4 S/N(c) 28.2 41.7 22.9 SN(E/C) 0.45
19900023	47	Red Green Blue z 19.06 znorm 14.88 sky 14.6 14.5 14.5 S/N 21.6 30.8 35.8 S/N(c) 28.1 41.5 22.8 SN(E/C) 0.44
19900024	47	Red Green Blue z 19.09 znorm 14.91 sky 14.6 14.7 14.6 S/N 21.2 30.8 36.4 S/N(c) 28.1 41.9 22.9 SN(E/C) 0.41
19900025	47	Red Green Blue z 19.07 znorm 14.89 sky 14.5 14.8 14.8 S/N 21.1 31.0 36.7 S/N(c) 27.9 41.5 22.8 SN(E/C) 0.45
19900026	47	Red Green Blue z 19.04 znorm 14.86 sky 14.5 14.8 14.8 S/N 21.0 30.9 36.6 S/N(c) 27.7 41.1 22.6 SN(E/C) 0.42
19900027	47	Red Green Blue z 19.06 znorm 14.88 sky 14.7 14.9 14.9 S/N 21.3 31.2 37.0 S/N(c) 27.9 41.6 22.7 SN(E/C) 0.44
19900028	47	Red Green Blue z 19.04 znorm 14.86 sky 14.6 14.8 14.9 S/N 21.2 30.9 36.7 S/N(c) 27.7 41.4 22.5 SN(E/C) 0.42