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)
18480071	94	Red Green Blue z 19.93 znorm 15.00 sky 15.2 14.8 15.0 S/N 24.7 36.6 42.8 S/N(c) 54.2 42.7 70.4 SN(E/C) 0.27
18480072	94	Red Green Blue z 19.90 znorm 14.97 sky 15.1 14.9 15.0 S/N 24.6 36.1 42.8 S/N(c) 53.2 42.1 69.6 SN(E/C) 0.28
18480073	94	Red Green Blue z 19.85 znorm 14.92 sky 15.2 14.8 14.7 S/N 24.2 35.0 41.4 S/N(c) 52.6 41.1 68.2 SN(E/C) 0.28
18480074	94	Red Green Blue z 19.90 znorm 14.97 sky 15.0 14.8 14.6 S/N 24.5 34.9 41.2 S/N(c) 52.6 41.6 69.1 SN(E/C) 0.27