 
 <prompt> Wetin cosmonaut need to navigate to do im work? Based on di question wey dey above, write one context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: By 1959, American observers believe say Soviet Union go be di first to carry human go space, because of di time wey dem need to prepare for Mercury first launch. On April 12, 1961, USSR surprise di world again as dem launch Yuri Gagarin go one orbit around Earth inside craft wey dem call Vostok 1. Dem call Gagarin di first cosmonaut, wey mean "sailor of di universe". Even though e get ability to take control of im spacecraft manually for emergency by opening envelope wey e get for cabin wey contain code wey fit be typed into di computer, e fly am for automatic mode as precaution; medical science for that time no know wetin go happen to human for weightlessness of space. Vostok 1 orbit Earth for 108 minutes and make reentry over Soviet Union, with Gagarin eject from di spacecraft for 7,000 meters (23,000 ft), and land with parachute. Fédération Aéronautique Internationale (International Federation of Aeronautics) give Gagarin credit for di world first human space flight, even though their rules for aeronautical records at that time require pilots to take off and land with their craft. For this reason, Soviet Union no include for their FAI submission di fact say Gagarin no land with im capsule. When FAI filing for Gherman Titov second Vostok flight for August 1961 reveal di ejection landing technique, FAI committee decide to investigate, and conclude say di technological accomplishment of human spaceflight dey for di safe launch, orbiting, and return, instead of di manner of landing, so dem revise their rules accordingly, keeping Gagarin and Titov records intact. 