Readme for list_2005-2011.txt

1st row: date in 8-digit
2nd row: total min (e.g., 240 means 0400 UT, 720 means 1200 UT)
3rd row: optical intensity at 630.0 nm
4th row: optical intensity at 557.7 nm

When I created this list, first I automatically extracted possible arcs
by using a method described in Hosokawa et al. [2011] and then manually
revised the list by checking keograms and time-series of the optical
intensity at zenith.

In Hosokawa et al. [2011], I used the Resolute Bay ASI data from 2005 to
2009. This time, I have added recent two years (2010,2011), thus, the total 
number of the extracted arcs is now 1,115.

Keisuke