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)
19750030	42	Red Green Blue z 17.73 znorm 13.67 sky 14.5 14.3 14.4 S/N 7.1 12.7 14.8 S/N(c) 8.8 13.0 5.8 SN(E/C) 0.53
19750031	42	Red Green Blue z 17.04 znorm 12.99 sky 14.7 14.5 14.6 S/N 4.2 8.4 9.3 S/N(c) 5.3 8.7 3.9 SN(E/C) 0.62
19750032	42	Red Green Blue z 18.59 znorm 14.53 sky 14.5 14.5 14.5 S/N 12.4 20.7 23.2 S/N(c) 14.9 19.6 8.9 SN(E/C) 0.40
19750033	42	Red Green Blue z 18.58 znorm 14.52 sky 14.6 14.5 14.6 S/N 12.4 20.7 23.1 S/N(c) 14.5 19.3 8.7 SN(E/C) 0.39
19750034	42	Red Green Blue z 18.49 znorm 14.43 sky 14.7 14.5 14.6 S/N 11.9 20.2 22.0 S/N(c) 13.4 18.2 8.4 SN(E/C) 0.40
19750035	42	Red Green Blue z 18.52 znorm 14.46 sky 14.4 14.5 14.5 S/N 11.9 20.5 22.1 S/N(c) 13.6 18.5 8.4 SN(E/C) 0.40
19750036	42	Red Green Blue z 17.83 znorm 13.77 sky 14.7 14.7 14.7 S/N 7.2 13.5 15.7 S/N(c) 9.3 13.4 6.2 SN(E/C) 0.43
19750037	42	Red Green Blue z 17.76 znorm 13.70 sky 14.7 14.5 14.6 S/N 7.2 13.2 15.0 S/N(c) 8.8 13.0 6.0 SN(E/C) 0.45