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)
4590019	47	Red Green Blue z 18.92 znorm 14.74 sky 14.9 14.9 14.5 S/N 14.0 23.8 23.7 S/N(c) 12.3 22.4 22.8 SN(E/C) 0.34
4590020	47	Red Green Blue z 18.94 znorm 14.76 sky 14.8 14.8 14.7 S/N 13.9 23.0 23.6 S/N(c) 12.3 21.5 22.4 SN(E/C) 0.33
4590021	47	Red Green Blue z 17.69 znorm 13.51 sky 13.0 12.9 12.9 S/N 4.6 8.2 8.8 S/N(c) 4.3 7.7 8.6 SN(E/C) 0.57
4590022	47	Red Green Blue z 17.52 znorm 13.34 sky 13.1 13.0 13.0 S/N 4.0 7.6 8.1 S/N(c) 3.7 6.9 7.9 SN(E/C) 0.63
4590023	47	Red Green Blue z 17.93 znorm 13.75 sky 13.8 13.7 13.7 S/N 6.2 10.9 11.8 S/N(c) 5.7 9.8 11.4 SN(E/C) 0.52
4590024	47	Red Green Blue z 17.80 znorm 13.62 sky 14.0 13.9 13.9 S/N 5.3 10.0 10.9 S/N(c) 4.7 8.8 10.3 SN(E/C) 0.56
4590025	47	Red Green Blue z 16.90 znorm 12.72 sky 13.1 13.0 13.0 S/N 2.1 4.3 4.5 S/N(c) 2.1 4.1 4.9 SN(E/C) 0.74
4590026	47	Red Green Blue z 16.43 znorm 12.25 sky 13.2 13.2 13.2 S/N 1.5 3.1 3.3 S/N(c) 1.4 2.7 3.3 SN(E/C) 0.85