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)
18790023	94	Red Green Blue z 18.11 znorm 13.18 sky 13.1 13.0 12.8 S/N 9.0 13.7 16.2 S/N(c) 16.9 28.1 6.1 SN(E/C) 0.73
18790024	94	Red Green Blue z 17.57 znorm 12.63 sky 13.0 12.9 12.7 S/N 5.2 8.2 9.5 S/N(c) 11.4 18.9 4.2 SN(E/C) 0.84
18790025	94	Red Green Blue z 18.94 znorm 14.01 sky 15.0 14.7 14.5 S/N 16.6 24.2 27.9 S/N(c) 26.1 44.0 9.3 SN(E/C) 0.51
18790026	94	Red Green Blue z 19.32 znorm 14.38 sky 15.0 14.7 14.5 S/N 19.5 27.2 31.7 S/N(c) 29.6 51.0 10.5 SN(E/C) 0.43