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)
18830042	94	Red Green Blue z 19.87 znorm 14.94 sky 14.9 14.7 14.7 S/N 28.3 41.2 46.9 S/N(c) 29.9 43.7 0.2 SN(E/C) 0.30
18830043	94	Red Green Blue z 19.88 znorm 14.95 sky 15.0 14.8 14.8 S/N 27.9 41.4 47.0 S/N(c) 30.3 43.4 0.2 SN(E/C) 0.28
18830044	94	Red Green Blue z 19.93 znorm 15.00 sky 15.0 14.8 14.8 S/N 28.4 42.4 47.9 S/N(c) 30.6 44.4 0.2 SN(E/C) 0.28
18830045	94	Red Green Blue z 19.95 znorm 15.01 sky 15.1 14.8 14.7 S/N 28.8 42.6 48.1 S/N(c) 31.4 45.3 0.2 SN(E/C) 0.29