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)
18850019	94	Red Green Blue z 19.91 znorm 14.98 sky 15.3 15.1 15.0 S/N 28.0 37.0 44.5 S/N(c) 30.8 38.9 40.2 SN(E/C) 0.24
18850020	94	Red Green Blue z 19.91 znorm 14.98 sky 15.3 15.3 15.2 S/N 27.4 36.6 44.1 S/N(c) 31.0 39.0 40.0 SN(E/C) 0.26
18850021	94	Red Green Blue z 19.93 znorm 14.99 sky 15.3 15.3 15.3 S/N 27.2 36.7 44.0 S/N(c) 31.5 39.2 41.0 SN(E/C) 0.24
18850022	94	Red Green Blue z 19.91 znorm 14.98 sky 15.3 15.4 15.3 S/N 26.7 36.2 43.3 S/N(c) 30.8 39.2 40.8 SN(E/C) 0.25
18850023	94	Red Green Blue z 19.95 znorm 15.02 sky 15.5 15.4 15.1 S/N 26.9 36.5 43.5 S/N(c) 31.7 39.9 42.1 SN(E/C) 0.25
18850024	94	Red Green Blue z 19.72 znorm 14.79 sky 15.4 15.3 15.1 S/N 23.8 32.8 38.6 S/N(c) 28.0 36.0 38.1 SN(E/C) 0.28