Torino scale the validity and societal impact of SETI data. The Torino Scale also uses a color code scale: white, green, yellow, orange, red. Each color code has an overall meaning: No object has ever been rated above level 4. The Chicxulub impact, believed by most scientists to be a significant factor in the extinction of the dinosaurs, has been estimated at 100 million (10) megatons, or Torino Scale 10. The impacts which created the Barringer Crater and the Tunguska event in 1908 are both estimated to be in the 3–10 megaton range, corresponding to Torino Scale 8. The 2013 Chelyabinsk meteor
Judo at the 2008 Summer Olympics men, 147 women and 22 places not yet allocated to a gender. An NOC may enter up to one athlete per weight category. The qualifying places will be allocated as follows: Continental qualification places will be allocated through the ranking system based on the major tournaments on the continent (continental championships, qualification tournaments). More important tournaments and tournaments closer to the Olympics will carry more points. Deadline for the unions to confirm the places was May 21, 2008. Judo at the 2008 Summer Olympics Judo competitions at the 2008 Summer Olympics in Beijing were held from August 9 to August