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
Rank in Judo first five are colored black, 6th, 7th, and 8th "dan" have alternating red and white panels (dandara), and for 9th, 10th "dan" and above, the belts are solid red. In judo's promotion system as originally finalized by Kanō around 1926 there was no maximal dan rank, and judoka holding 10th dan would normally wear a red belt, but also could wear a white belt, the same color as the lowest kyū rank. However, since the highest dan rank reached in judo for a living person or conferred posthumously remains 10th dan, any judo dan rank higher than 10th dan is