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)
19930025	94	Red Green Blue z 19.72 znorm 14.79 sky 14.4 14.2 14.2 S/N 28.8 38.5 46.8 S/N(c) 44.4 27.4 40.1 SN(E/C) 0.71
19930026	94	Red Green Blue z 19.73 znorm 14.79 sky 14.4 14.3 14.3 S/N 29.1 39.3 47.5 S/N(c) 44.8 27.8 40.5 SN(E/C) 0.66
19930027	94	Red Green Blue z 19.65 znorm 14.72 sky 14.4 14.4 14.2 S/N 28.2 38.0 46.2 S/N(c) 45.1 27.9 39.2 SN(E/C) 0.69
19930028	94	Red Green Blue z 19.74 znorm 14.81 sky 14.4 14.3 14.1 S/N 29.4 39.7 48.4 S/N(c) 47.1 29.1 40.9 SN(E/C) 0.64