Автор Anatoly Zak, 26.05.2011 08:53:55
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Цитата NASA's OSIRIS-REx @OSIRISREx 39 сSchedule Update:T-0:40:00 to the Checkpoint burn!T-0:50:00 to the Matchpoint burn!T-1:00:00 to Touchdown!
Цитата Jonathan McDowell @planet4589 8 мин. назадLauretta: Low data rate for now, then download images from the high gain antenna overnight.
Цитата NASA's OSIRIS-REx @OSIRISREx 1 мин. назадFinal slew coming up! This time I'll rotate to repoint the TAGSAM arm and navigation cameras toward Bennu's surface. Getting ready for touchdown. #ToBennuAndBack
Цитата Spaceflight Now @SpaceflightNow 55 сThe OSIRIS-REx spacecraft has steered to the proper orientation for final descent to Bennu, with its 11-foot-long sampling arm and cameras pointed toward the asteroid's surface.
Цитата NASA's OSIRIS-REx @OSIRISREx 3 мин. назадFor the next ~6 minutes, I'll move my solar panels into the Y-wing configuration. This positions the panels up and away from the asteroid's surface so that I can touch down safely.https://video.twimg.com/tweet_video/EkzX-hjWMAElnTI.mp4 (0:07)
Цитата Jeff Foust @jeff_foust 3 мин. назадOne interesting thing from the NASA TV OSIRIS-REx event (besides the fact the spacecraft's approach is going as planned): NASA personnel are wearing masks with transparent sections; Lockheed staff wearing black fabric masks with the mission logo. Life in 2020.
Цитата10/21/2020 00:43 Stephen ClarkThe OSIRIS-REx Camera Suite, or OCAMS, instruments have started their descent imaging sequence. The cameras will capture imagery throughout the final descent and the touch and go landing.
Цитата NASA's OSIRIS-REx @OSIRISREx 53 сWe are now in the Y-wing configuration
Цитата: undefined NASA's OSIRIS-REx @OSIRISREx 21 сAlmost ready for the Checkpoint burn to start the steep descent toward the surface. First the NFT system will predict my position & speed at the time of the Checkpoint & Matchpoint burns, make any necessary trajectory corrections & then I'll get the green light for the first burnhttps://video.twimg.com/ext_tw_video/1318670422737588224/pu/vid/1280x720/eYkzbJxUu1iWBh_o.mp4 (0:16)
Цитата NASA's OSIRIS-REx @OSIRISREx 2 мин. назадCheckpoint burn complete For the next 10 minutes, I'll descend more steeply toward Bennu's surface... then it'll be time for the Matchpoint burn! #ToBennuAndBack
Цитата NASA's OSIRIS-REx @OSIRISREx 3 мин. назадNext up - Matchpoint burn! This maneuver changes my flight path to match Bennu's spin, allowing me to precisely target site Nightingale and safely touch down on the surface.
Цитата: undefined NASA's OSIRIS-REx @OSIRISREx 52 сThe Matchpoint burn is complete and I'm approximately 131 ft (40 m) over the surface! I'll descend for another 10 mins and then it's TAG time! #ToBennuAndBack
Цитата10/21/2020 01:04 Stephen ClarkMission control reports OSIRIS-REx's attitude control system has transitioned to touch and go mode. The spacecraft is currently 141 feet, or 43 meters, from Bennu.
Цитата NASA @NASA 2 мин. назад Matchpoint Burn completed. "We've got about 10 minutes before contact with the asteroid surface." @OSIRISREx is maneuvering to match the speed and spin of asteroid Bennu before its final descent to the surface. #ToBennuAndBackhttps://video.twimg.com/amplify_video/1318674073522561024/vid/1280x720/L750RA1SVaM1x3ge.mp4 (0:12)
Цитата NASA's OSIRIS-REx @OSIRISREx 32 сJust passed the 25 m crossing. It's almost time https://video.twimg.com/ext_tw_video/1318674011803570176/pu/vid/1280x720/kxbVk8ZE02NsuDTp.mp4 (0:04)
Цитата10/21/2020 01:10 Stephen ClarkThe final navigation report from mission control indicates OSIRIS-REx is heading for a safe touch and go landing zone with a 0% chance of hazards.