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)
19890034	42	Red Green Blue z 18.19 znorm 14.13 sky 14.6 14.5 14.6 S/N 9.4 16.8 18.7 S/N(c) 14.5 17.2 5.6 SN(E/C) 0.69
19890035	42	Red Green Blue z 18.16 znorm 14.10 sky 14.6 14.5 14.5 S/N 9.1 16.5 18.2 S/N(c) 14.4 17.1 5.5 SN(E/C) 0.70
19890036	42	Red Green Blue z 18.12 znorm 14.06 sky 14.8 14.6 14.7 S/N 8.5 15.2 17.1 S/N(c) 13.3 16.1 5.2 SN(E/C) 0.71
19890037	42	Red Green Blue z 18.10 znorm 14.04 sky 14.7 14.6 15.0 S/N 8.3 14.9 16.8 S/N(c) 13.2 15.9 5.2 SN(E/C) 0.71