On Feb 23, 12:27 pm, Robert Clark <rgregorycl...@yahoo.com> wrote: > On Feb 19, 2:52 pm, Robert Clark <rgregorycl...@yahoo.com> wrote: > > > > > > > > > > > > > Here's the article by the Yale astronomer: > > > A meteor and asteroid: 1 in 100 million odds. > > By Meg Urry, Special to CNN > > updated 8:16 PM EST, Mon February 18, 2013http://www.cnn.com/2013/02/16/opinion/urry-meteor-asteroid/index.html > > > She states the two have very different orbits so they should be > > unrelated, but acknowledges that the very low probability of their > > both occurring so close to each other in time is puzzling. > > In view of the very real dangers that would arise IF it is the case > > they are related I think we should investigate some possible ways this > > could occur. What I mean by this is cases where we assume asteroids > > that make close approaches but do not impact, and therefore offer no > > threat, still could have associated fragments that do impact. > > ... > > Smaller fireballs were also seen over Florida and San Francisco: > > Florida fireballs? Experts say Florida fireball was a small meteorite > FLORIDA FIREBALLS FEBRUARY 19, 2013 BY: ED WALSHhttp://www.examiner.com/article/florida-fireballs-experts-say-florida... > > Francisco Bay area residents report fireball sighting > By Associated Press,February 16, 2013http://articles.washingtonpost.com/2013-02-16/national/37127918_1_ame... > > The Air Force has infrasound detectors that can measure atmospheric > explosions. The size of these fireballs needs to be determined to find > out how rare they are. In those articles they say both that they occur > everyday and also they occur at the rate of 5 to 10 a year. If their > size is such they occur even ten times a year, then the probability of > one of these meteors of this size occurring on one day is 1 in 36. Now > the probability of all three events happening on the same day jumps to > 1 in several billion. > > The 2029 close approach of the near Earth asteroid Apophis means this > is a question that needs to be determined definitively. It also like > 2012 DA14 is expected to come so close as to get inside the ring of > geosynchronous satellites, but not impact. Apophis is so large though > that, unlike 2012 DA14 , on closest approach it will even be visible > to the naked eye. If it is the case that it can be accompanied by > fragments that do impact then that is potentially very serious because > its larger size means it would likely be accompanied by larger > fragments. > > To answer this question a statistical study needs to be made both of > the Air Force infrasound detectors and the space radar detections to > find whether on the 2012 DA14 close approach or on other previous > close approaches whether there was an increase in meteor hits. > > Bob Clark
Getting the USAF or any other military agency to share public funded science isn't going to happen, at least not within our generation.
Thanks to our NASA/Apollo era of double/triple agents getting away with all sorts of Paperclip Nazi stuff, is why any cross-agency collaboration simply isn't going to happen.