There should be a correction to my F number on my meteor observations for September 11/12. I had F=0.60 for my hour from 5:30-6:30 UT. It should be 0.70, which stands for 70% clear. Note that this is difffrent than the standard IMO system. Likewise the correct F=0.90 that I gave stands for 90% clear, or unobstructed. GWG