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)
19980036	94	Red Green Blue z 19.08 znorm 14.15 sky 15.0 14.8 15.0 S/N 18.2 27.3 32.9 S/N(c) 33.0 7.0 57.6 SN(E/C) 0.50
19980037	94	Red Green Blue z 19.20 znorm 14.27 sky 15.0 14.8 15.0 S/N 18.8 28.9 34.7 S/N(c) 34.2 7.4 59.7 SN(E/C) 0.46
19980038	94	Red Green Blue z 19.27 znorm 14.34 sky 15.0 14.8 15.0 S/N 19.9 30.1 36.2 S/N(c) 35.9 7.7 62.7 SN(E/C) 0.45
19980039	94	Red Green Blue z 19.41 znorm 14.47 sky 14.8 14.8 14.8 S/N 21.3 31.9 38.1 S/N(c) 37.9 8.2 66.0 SN(E/C) 0.45