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)
18730049	94	Red Green Blue z 19.92 znorm 14.98 sky 15.2 14.9 15.1 S/N 31.1 44.6 50.1 S/N(c) 32.0 47.3 0.2 SN(E/C) 0.28
18730050	94	Red Green Blue z 19.88 znorm 14.95 sky 15.4 15.2 15.1 S/N 30.3 43.8 49.3 S/N(c) 30.9 46.2 0.2 SN(E/C) 0.26
18730051	94	Red Green Blue z 19.80 znorm 14.87 sky 15.4 15.1 15.1 S/N 29.0 41.7 47.4 S/N(c) 30.0 44.8 0.2 SN(E/C) 0.27
18730052	94	Red Green Blue z 19.89 znorm 14.96 sky 15.3 15.1 15.1 S/N 30.2 43.7 48.8 S/N(c) 30.8 46.1 0.2 SN(E/C) 0.26