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)
18830071	94	Red Green Blue z 19.81 znorm 14.88 sky 15.0 14.4 14.5 S/N 26.4 37.2 42.5 S/N(c) 38.4 65.7 36.1 SN(E/C) 0.40
18830072	94	Red Green Blue z 19.85 znorm 14.92 sky 15.0 14.7 14.5 S/N 27.5 39.3 44.8 S/N(c) 39.1 67.0 36.5 SN(E/C) 0.40
18830073	94	Red Green Blue z 19.89 znorm 14.95 sky 14.9 14.7 14.6 S/N 29.1 41.5 47.1 S/N(c) 40.5 68.1 37.8 SN(E/C) 0.41
18830074	94	Red Green Blue z 19.90 znorm 14.96 sky 15.1 14.7 14.7 S/N 29.0 41.3 46.9 S/N(c) 40.9 68.9 38.4 SN(E/C) 0.38