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)
3990020	47	Red Green Blue z 18.74 znorm 14.56 sky 13.8 13.5 13.4 S/N 12.0 19.8 21.6 S/N(c) 10.4 18.2 19.9 SN(E/C) 0.80
3990021	47	Red Green Blue z 18.94 znorm 14.76 sky 14.3 13.9 14.0 S/N 13.6 22.2 24.7 S/N(c) 11.8 20.3 22.9 SN(E/C) 0.85
3990022	47	Red Green Blue z 18.72 znorm 14.54 sky 14.0 13.7 13.7 S/N 11.5 19.2 21.1 S/N(c) 10.1 17.2 19.8 SN(E/C) 0.84
3990023	47	Red Green Blue z 18.85 znorm 14.67 sky 14.1 13.9 13.9 S/N 12.6 20.8 22.8 S/N(c) 10.9 18.6 21.5 SN(E/C) 0.84
3990024	47	Red Green Blue z 17.99 znorm 13.81 sky 13.3 13.2 13.2 S/N 6.1 11.1 12.1 S/N(c) 5.1 9.6 11.2 SN(E/C) 0.94
3990025	47	Red Green Blue z 18.10 znorm 13.91 sky 13.4 13.3 13.3 S/N 6.5 12.1 13.3 S/N(c) 5.6 10.6 12.3 SN(E/C) 0.90
3990026	47	Red Green Blue z 17.58 znorm 13.40 sky 13.3 13.2 13.2 S/N 4.4 7.8 8.9 S/N(c) 3.6 6.8 8.2 SN(E/C) 0.98
3990027	47	Red Green Blue z 17.35 znorm 13.17 sky 13.0 13.0 13.0 S/N 3.2 6.7 7.1 S/N(c) 2.8 5.6 6.7 SN(E/C) 0.97