I am at work on Monday morning and I deliberately left my observing notes at home so that I would not be tempted to spend an hour or two entering a proper observation report. I "promise" to do that this evening. Ed Cannon and I maintained a continuous watch on Superbird A from a time of acquisition (02:06UT Feb. 17) until shadow entry (03:58UT). The main telescope used was the 12 1/2 inch, but an 8 inch and 3 inch and 2 inch finder scopes were also used. Two "episodes" of bright flashes were observed: the first was centered about 02:35UT and the second was centered about 03:40UT. (Possible memory error up to 10 minutes?) When first acquired and in between the episodes, Superbird A had a regular tumble from about magnitude 12 to invisible. The period was 5.85 seconds. In each episode, flashes were initially noticed at about 10th or 11th magnitude and these flashes gradually increased in amplitude until they became about 4th magnitude. The duration of increase was about 10 to 15 minutes. The flashes were assiociated with one of the regular 5.85 second tumbles. Even the brightest flashes were preceded (by 5.85 seconds) by a tumble to about 12th magnitude and occurred during (in the middle of) such a tumble. The flashes had a 23.4 second period and there were never significant flashes seen at the half-way time of 11.7 seconds. One interesting question is: Was the "phase" of the flashes the same in both episodes? (Relative to the underlying 5.85 second period.) However, when shadow entry was occurring about 03:58UT, equally spaced flashes of magnitude 8 or 9 were seen to occur with a period of 11.7 seconds. This is "intriguing". I definitely thought that the primary flashes were decreasing in brightness before shadow entry effects became noticeable, so I was surprised to see (a few) equal brightness flashes with an 11.7 second period just before shadow entry. It appears that someone out west has sent us some thin cirrus clouds this morning. Even thin cirrus may prevent observations this evening since the moon is so bright. Mike McCants mikem@fc.net