{"action":"created","issue":{"url":"https://api.github.com/repos/PX4/Firmware/issues/1956","labels_url":"https://api.github.com/repos/PX4/Firmware/issues/1956/labels{/name}","comments_url":"https://api.github.com/repos/PX4/Firmware/issues/1956/comments","events_url":"https://api.github.com/repos/PX4/Firmware/issues/1956/events","html_url":"https://github.com/PX4/Firmware/issues/1956","id":64737156,"number":1956,"title":"Attitude Controller hiccup in Manual mode","user":{"login":"Zefz","id":1359524,"avatar_url":"https://avatars.githubusercontent.com/u/1359524?v=3","gravatar_id":"","url":"https://api.github.com/users/Zefz","html_url":"https://github.com/Zefz","followers_url":"https://api.github.com/users/Zefz/followers","following_url":"https://api.github.com/users/Zefz/following{/other_user}","gists_url":"https://api.github.com/users/Zefz/gists{/gist_id}","starred_url":"https://api.github.com/users/Zefz/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Zefz/subscriptions","organizations_url":"https://api.github.com/users/Zefz/orgs","repos_url":"https://api.github.com/users/Zefz/repos","events_url":"https://api.github.com/users/Zefz/events{/privacy}","received_events_url":"https://api.github.com/users/Zefz/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/PX4/Firmware/labels/multicopter","name":"multicopter","color":"0052cc"},{"url":"https://api.github.com/repos/PX4/Firmware/labels/priority-critical","name":"priority-critical","color":"e11d21"}],"state":"open","locked":false,"assignee":{"login":"tumbili","id":7610489,"avatar_url":"https://avatars.githubusercontent.com/u/7610489?v=3","gravatar_id":"","url":"https://api.github.com/users/tumbili","html_url":"https://github.com/tumbili","followers_url":"https://api.github.com/users/tumbili/followers","following_url":"https://api.github.com/users/tumbili/following{/other_user}","gists_url":"https://api.github.com/users/tumbili/gists{/gist_id}","starred_url":"https://api.github.com/users/tumbili/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tumbili/subscriptions","organizations_url":"https://api.github.com/users/tumbili/orgs","repos_url":"https://api.github.com/users/tumbili/repos","events_url":"https://api.github.com/users/tumbili/events{/privacy}","received_events_url":"https://api.github.com/users/tumbili/received_events","type":"User","site_admin":false},"milestone":{"url":"https://api.github.com/repos/PX4/Firmware/milestones/5","html_url":"https://github.com/PX4/Firmware/milestones/Flight%20Robustness","labels_url":"https://api.github.com/repos/PX4/Firmware/milestones/5/labels","id":1042303,"number":5,"title":"Flight Robustness","description":"This milestone contains all changes needed to address flight robustness related concerns.","creator":{"login":"LorenzMeier","id":1208119,"avatar_url":"https://avatars.githubusercontent.com/u/1208119?v=3","gravatar_id":"","url":"https://api.github.com/users/LorenzMeier","html_url":"https://github.com/LorenzMeier","followers_url":"https://api.github.com/users/LorenzMeier/followers","following_url":"https://api.github.com/users/LorenzMeier/following{/other_user}","gists_url":"https://api.github.com/users/LorenzMeier/gists{/gist_id}","starred_url":"https://api.github.com/users/LorenzMeier/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/LorenzMeier/subscriptions","organizations_url":"https://api.github.com/users/LorenzMeier/orgs","repos_url":"https://api.github.com/users/LorenzMeier/repos","events_url":"https://api.github.com/users/LorenzMeier/events{/privacy}","received_events_url":"https://api.github.com/users/LorenzMeier/received_events","type":"User","site_admin":false},"open_issues":9,"closed_issues":1,"state":"open","created_at":"2015-03-27T20:23:06Z","updated_at":"2015-04-03T08:19:02Z","due_on":"2016-03-14T07:00:00Z","closed_at":null},"comments":25,"created_at":"2015-03-27T10:41:20Z","updated_at":"2015-04-03T12:19:56Z","closed_at":null,"body":"Something weird happens at the end of this flight log. Suddenly there is a gap of 0.5 seconds with no data points and the Attitude setpoints flat-lines which caused the copter to take a flip and crash.\r\n\r\nBattery, signals strength and CPU load all seem normal to me. This happened while flying in Manual mode on master code (with a custom navigator app running in the background).\r\n\r\nhttp://dash.oznet.ch/view/XkxhtaYiDkNk4BgupSUMvJ"},"comment":{"url":"https://api.github.com/repos/PX4/Firmware/issues/comments/89270592","html_url":"https://github.com/PX4/Firmware/issues/1956#issuecomment-89270592","issue_url":"https://api.github.com/repos/PX4/Firmware/issues/1956","id":89270592,"user":{"login":"LorenzMeier","id":1208119,"avatar_url":"https://avatars.githubusercontent.com/u/1208119?v=3","gravatar_id":"","url":"https://api.github.com/users/LorenzMeier","html_url":"https://github.com/LorenzMeier","followers_url":"https://api.github.com/users/LorenzMeier/followers","following_url":"https://api.github.com/users/LorenzMeier/following{/other_user}","gists_url":"https://api.github.com/users/LorenzMeier/gists{/gist_id}","starred_url":"https://api.github.com/users/LorenzMeier/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/LorenzMeier/subscriptions","organizations_url":"https://api.github.com/users/LorenzMeier/orgs","repos_url":"https://api.github.com/users/LorenzMeier/repos","events_url":"https://api.github.com/users/LorenzMeier/events{/privacy}","received_events_url":"https://api.github.com/users/LorenzMeier/received_events","type":"User","site_admin":false},"created_at":"2015-04-03T12:19:56Z","updated_at":"2015-04-03T12:19:56Z","body":"@Zefz It looks like mixer saturation based on @tumbili 's comments. We will implement a different approach based on the observations in #1925.\r\nI just fixed a major bug in the EKF today which coupled accelerations in a really bad way. I would expect that the attitude estimation performance is significantly improved now."}}