NASASpaceFlight.com Forum
SpaceX Vehicles and Missions => SpaceX Falcon Missions Section => Topic started by: jacqmans on 09/12/2017 09:47 am
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CRS-12 update only thread for Dragon's EOM events.
ARTICLES:
https://www.nasaspaceflight.com/?s=CRS-12
https://www.nasaspaceflight.com/?s=SpX-12
NSF Threads for CRS-12 : Discussion (https://forum.nasaspaceflight.com/index.php?topic=42878.0) / Updates (https://forum.nasaspaceflight.com/index.php?topic=43347.0) / L2 Coverage July-August (https://forum.nasaspaceflight.com/index.php?topic=43238.0)
NSF Articles for CRS missions : https://www.nasaspaceflight.com/?s=CRS
External cargo: ISS-CREAM
Other SpaceX resources on NASASpaceflight:
SpaceX News Articles (Recent) (http://www.nasaspaceflight.com/tag/spacex/) / SpaceX News Articles from 2006 (Including numerous exclusive Elon interviews) (http://forum.nasaspaceflight.com/index.php?topic=21862.0)
SpaceX Dragon Articles (http://www.nasaspaceflight.com/tag/dragon/) / SpaceX Missions Section (with Launch Manifest and info on past and future missions) (https://forum.nasaspaceflight.com/index.php?board=55.0)
L2 SpaceX Section (https://forum.nasaspaceflight.com/index.php?board=60.0)
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September 11, 2017
MEDIA ADVISORY M17-106
U.S. Cargo Ship Set to Depart from International Space Station
After delivering more than 6,400 pounds of cargo, a SpaceX Dragon cargo spacecraft will depart the International Space Station on Sunday, Sept. 17. NASA Television and the agency’s website will provide live coverage of Dragon's departure beginning at 4:30 a.m. EDT.
Flight controllers will use the space station’s Canadarm2 robotic arm to detach Dragon, which arrived Aug. 16, from the Earth-facing side of the station's Harmony module. After Dragon is maneuvered into place, the spacecraft will be released by Expedition 53 Flight Engineer Paolo Nespoli of ESA (European Space Agency) with the assistance of station Commander Randy Bresnik of NASA at 4:47 a.m.
Dragon’s thrusters will be fired to move the spacecraft a safe distance from the station before SpaceX flight controllers in Hawthorne, California, command its deorbit burn. The spacecraft will splash down at about 10:16 a.m. in the Pacific Ocean, where recovery forces will retrieve Dragon and approximately 3,800 pounds of cargo. This will include science samples from human and animal research, biology and biotechnology studies, physical science investigations and education activities. The deorbit burn and splashdown will not be broadcast on NASA TV.
NASA and the Center for the Advancement of Science in Space (CASIS), the nonprofit organization that manages research aboard the U.S. national laboratory portion of the space station, will receive time-sensitive samples and begin working with researchers to process and distribute them within 48 hours of splashdown.
In the event of adverse weather conditions in the Pacific, the backup departure and splashdown date is Sept. 20.
Dragon, the only space station resupply spacecraft currently able to return to Earth intact, launched Aug. 14 on a SpaceX Falcon 9 rocket from Launch Complex 39A at NASA's Kennedy Space Center in Florida, for the company’s 12th NASA-contracted commercial resupply mission to the station.
Keep up with the International Space Station, and its research and crew, at:
https://www.nasa.gov/station
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Dragon C113 Hazard Area (https://www.google.com/maps/d/viewer?mid=1voUZtBE9oQ1sO5VzdvlysQqnxqI&ll=31.486635541256824%2C-119.09290426839169&z=6) overview with landing estimation for Sunday's reentry.
Continuing trend of ever shorter Dragon reentry areas.
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Two days before EOM...
SSRMS has already grapple Dragon
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I know this isn’t an official twitter account but I’ve found it reliable:
The CRS-12 Dragon has been un-berthed from the ISS in preperation for tomorrow's release and splashdown. #CRS12
https://twitter.com/spacexupdates/status/909184570481889282
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It's cool. He's a NSF member :)
Article shortly, then back for NASA TV coverage.
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Article for EOM:
https://www.nasaspaceflight.com/2017/09/crs-12-dragon-iss-mission-splashdown-return/
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SSRMS in move...
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https://twitter.com/search?q=dragon%20crs%2012&src=typd
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Release minus 1hr 22
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"NASA Television coverage of the departure of the SpaceX Dragon spacecraft from the International Space Station is set to begin early Sunday morning, Sept. 17 at 4:30 a.m. EDT. Watch the spacecraft departure live at http://www.nasa.gov/live"
https://blogs.nasa.gov/spacestation/2017/09/16/nasa-tv-broadcasts-dragon-release-early-sunday/
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MCC-M to the crew:" All according to the plan, Dragon is already in release position"
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MCC-M: "Windows for release 08.40 to 09.05 UTC"
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Sunrise...
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We can heard some music on the loop...
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Window for release open in 29 mn...
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In the Cupola, crew (paolo and Randy ?) take over from ROBO controllers to support the release of Dragon
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NASA TV in 10 mins.
One of many options:
http://www.ustream.tv/NASAHDTV
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MCC-H
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Interesting SpaceX slide for no downlink...
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VVO at console...
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Dragon looking a bit dirty....
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Paolo prime for release and Randy in backup position
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Mary Lawrence Flight director and Andreas Morgensen as capcom
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RELEASE!
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End Effector snares release the craft’s grapple fixture and SSRMS retreat to a safe distance.
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One meter away
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Departure burn 1.
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Departure Burn 2.
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2rd departure burn
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Once outside the KOS "Keep Out Sphere", Dragon will make its 3rd and largest departure maneuver to depart the Approach Ellipsoid
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Departure Burn 3 coming up.
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Nice little dance as the third burn is complete.
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Departure burn 3 complete, Dragon out of KOS
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Splashdown: 14.14 UTC, (10.14 am ET)
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MCC-M: "Dragon outside of the Approach Ellipsoid"
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Outside of the approach ellipsoid.
9:24 AM Eastern for Deorbit burn.
10:14 AM Eastern for Splashdown.
Will be via SpaceX tweets for confirmations. Thanks again to centaurinasa for help with coverage.
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https://www.youtube.com/watch?v=vsR3rTlEzu0
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Next event is the closure of the GNC Bay Door (to protect the navigation sensors during the re-entry)
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ISS Config right now
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EOM events for CRS-12 Dragon: Deorbit Burn scheduled at this time. 10 minute Draco Thruster firing, retrograde.
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Deorbit burn start right now, according to the timeline
SpaceX controllers from Hawthorne send command to Draco engines for retrograde firing during 10 mn, slowing Dragon by about 100 m/s
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Soon, trunk section separation about 4 mn before entry interface
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SpaceX:
Dragon's de-orbit burn is complete and trunk has been jettisoned. Pacific Ocean splashdown in ~30 minutes.
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Coming up on Entry Interface. Dragon will be protected by her PICA-X (Phenolic Impregnated Carbon Ablator) TPS (Thermal Protection System).
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dual drogue chutes deployment
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And then... three Main chutes deployment
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Still lacking a tweet about Chutes. Normally they do.
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Yay!
SpaceX:
Dragon's drogue chutes have been deployed nominally.
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SpaceXVerified account @SpaceX 41s42 seconds ago
Dragon's drogue chutes have been deployed nominally.
SpaceXVerified account @SpaceX 13s14 seconds ago
Dragon's three main parachutes have been deployed.
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Splashdown in few mn!
(image from previous flight)
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Dragon's three main parachutes have been deployed.
https://twitter.com/SpaceX/status/909420421757378560
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Good splashdown of Dragon confirmed, completing its 12th mission to and from the @Space_Station.
https://twitter.com/SpaceX/status/909420934917890048
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Splashdown confirmed by SpaceX :)
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Article updated, pending actual splashdown pic.
https://www.nasaspaceflight.com/2017/09/crs-12-dragon-iss-mission-splashdown-return/
Nicely done!
Thanks to all for the coverage.
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First reused one to return twice... nice going SpaceX
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Thank you for the great detailed article gentlemen, congrats to SpaceX and NASA on a successful mission!
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Any guess about the unberthing time?
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First reused one to return twice... nice going SpaceX
Nope. CRS-12 was a new spacecraft. It used Dragon spacecraft C113, the 13th and final new Dragon spacecraft capsule planned to be manufactured by SpaceX. Future missions will use refurbished recovered capsules.
- Ed Kyle
Yes, CRS-11 was the first to reuse a capsule and land (splash) it twice.
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Whoops. thanks!
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Whoops. thanks!
Yeah, they all look the same to me too... ;D
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Seems that still no image or video of the splashdown ... :(
Does anyone have it ?
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Sandy Mazza Verified account @SandyMazza 3m3 minutes ago
Dragon launched Aug14 to @ISS_Research for NASA is wrapped up for a truck trip. With another Dragon from a previous mission maybe??? – at Port of Los Angeles Warehouse #1
https://twitter.com/SandyMazza/status/912718031469420544
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Sandy Mazza Verified account @SandyMazza 3m3 minutes ago
Dragon launched Aug14 to @ISS_Research for NASA is wrapped up for a truck trip. With another Dragon from a previous mission maybe??? – at Port of Los Angeles Warehouse #1
https://twitter.com/SandyMazza/status/912718031469420544
That's a Dragon 2!
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Sandy Mazza Verified account @SandyMazza 3m3 minutes ago
Dragon launched Aug14 to @ISS_Research for NASA is wrapped up for a truck trip. With another Dragon from a previous mission maybe??? – at Port of Los Angeles Warehouse #1
https://twitter.com/SandyMazza/status/912718031469420544
The Dragon 1 with the exposed CBM has been there for months, and the "Dragon 2" is just a mockup.