Guess Who's Buzzing Today

At 4:57 PM today i came from a short walk. My neighbor at Nr.9 came down the stairs with a pair of barking dogs when i wanted to climb so i backed down. I went to the car and then to the mailbox. Exactly when i reached the car, a plane flew just above the building. I mean, not 1500 feet as the legal limit, not 500 feet, not even 300 feet but merely ... what? 150 feet maybe? It could have touched the building at Nr.45 across the alley. Almost no noise at all which means the pilot cut the engines down to idle. Really dangerous at that altitude in a residential area full of trees. It was also pretty foggy. I waited patiently two hours (actually more than two, as i forgot and then remember because of the OHSU helicopter flying more recently and really shaking the building, vibrating the walls' panels and pumping outside the dust from the walls and the mineral fiber in the attick, like every time where you have an enclosed volume within elastic walls, when those walls vibrate, the air inside is getting slowly pumped outside and the other way around.) so i can look at the history of flights on Web Track. I was curious to see what airline that was. Look for yourself and wonder. Beware that data on the site is slightly erroneous as it shows the plane flying some 900 feet SE of the building and 2700 above sea level which would be 2000 above the ground, well within legal limits. I mean i couldn't have seen it from outside near the west side of the building if it was flying as it says there, right? (It is not well shown here but the building i live in is oriented NS. That site http://webtrak.bksv.com/pdx worked right for me since i first started looking until a few month ago. Map is clickable.

Screenshot, webrak, Mountain Park, OR, Sat 12 Jan 2013 04:38:40 PM PST