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)
19970034	47	Red Green Blue z 18.17 znorm 13.99 sky 14.4 14.1 14.3 S/N 8.6 15.3 16.8 S/N(c) 4.9 9.1 12.5 SN(E/C) 1.05
19970035	47	Red Green Blue z 18.47 znorm 14.29 sky 14.5 14.5 14.4 S/N 10.2 17.8 19.8 S/N(c) 5.6 10.3 14.1 SN(E/C) 0.97