The Iridium communication satellites have a peculiar shape with three polished door-sized antennas, 120° apart and at 40° angles with the main bus. The forward antenna faces the direction the satellite is travelling. Occasionally, an antenna reflects sunlight directly down at Earth, creating a predictable and quickly moving illuminated spot on the surface below of about 10 km (6.2 mi) diameter. To an observer this looks like a bright flash, or flare in the sky, with a duration of a few seconds.
Ranging up to −8 magnitude (rarely to a brilliant −9.5), some of the flares are so bright that they can be seen in the daytime; but they are most impressive at night. This flashing has caused some annoyance to astronomers, as the flares occasionally disturb observations.
As the Iridium constellation consists of 66 working satellites, Iridium flares are visible quite often (2–4 times per night). Flares of brightness −5 magnitude occur 3–4 times per week; −8 magnitude may be visible 3–5 times per month for stationary observers.
Thank you for this thread!!! I also saw it, bright blueish streak and very brief. I was walking outside and it caught my eye, I kind of just stared at the sky thinking wtf was that and I looked around to see if anyone else saw it and of course the answer is no...
Even told my wife and she just laughed at me (I was drinking a beer) and she said she'll ask me about it again tomorrow
Then I found this thread which has vindicated me!!! Except she thought all the sarcastic comments in here were more interesting