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)
19870011	47	Red Green Blue z 19.03 znorm 14.84 sky 14.1 14.2 14.1 S/N 15.3 23.1 28.7 S/N(c) 39.7 27.0 19.0 SN(E/C) 0.86
19870012	47	Red Green Blue z 19.03 znorm 14.85 sky 14.4 14.4 14.3 S/N 15.0 22.5 29.0 S/N(c) 38.4 27.3 18.6 SN(E/C) 0.87
19870013	47	Red Green Blue z 19.09 znorm 14.91 sky 14.3 14.3 14.3 S/N 15.1 23.1 30.1 S/N(c) 39.8 27.9 19.1 SN(E/C) 0.86
19870014	47	Red Green Blue z 19.06 znorm 14.88 sky 14.1 14.2 14.1 S/N 15.1 23.0 29.4 S/N(c) 39.4 27.9 18.8 SN(E/C) 0.89