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update: OSIRIS-REx 'touch-and-go' SUCCESSFULLY collected sample on asteroid Bennu

Posted on 10/20/20 at 3:47 pm
Posted by JPinLondon
not in London (currently NW Ohio)
Member since Nov 2006
7855 posts
Posted on 10/20/20 at 3:47 pm
ETA: UPDATED IN POST BELOW...


4pm CDT - LIVE coverage of OSIRIS-REx spacecraft touch-and-go (TAG) maneuver to collect sample on asteroid Bennu
NASA TV


Ten Things to Know About Bennu

Update: NASA to Broadcast OSIRIS-REx Asteroid Sample Collection Activities

This post was edited on 10/20/20 at 6:38 pm
Posted by jimbeam
University of LSU
Member since Oct 2011
75703 posts
Posted on 10/20/20 at 3:48 pm to
shite be crazy mayne
Posted by CatfishJohn
Member since Jun 2020
13396 posts
Posted on 10/20/20 at 3:51 pm to
Now this is some cool shite
Posted by JPinLondon
not in London (currently NW Ohio)
Member since Nov 2006
7855 posts
Posted on 10/20/20 at 3:59 pm to
101955 Bennu




101955 Bennu
From Wikipedia, the free encyclopedia

101955 Bennu (provisional designation 1999 RQ36) is a carbonaceous asteroid in the Apollo group discovered by the LINEAR Project on 11 September 1999. It is a potentially hazardous object that is listed on the Sentry Risk Table with the second-highest cumulative rating on the Palermo Technical Impact Hazard Scale. It has a cumulative 1-in-2,700 chance of impacting Earth between 2175 and 2199. It is named after the Bennu, the ancient Egyptian mythological bird associated with the Sun, creation, and rebirth.

101955 Bennu has a mean diameter of 490 m (1,610 ft; 0.30 mi) and has been observed extensively with the Arecibo Observatory planetary radar and the Goldstone Deep Space Network.

Bennu is the target of the OSIRIS-REx mission which is intended to return samples to Earth in 2023 for further study. On 3 December 2018, the OSIRIS-REx spacecraft arrived at Bennu after a two-year journey. Before attempting to obtain a sample from the asteroid, it will map out Bennu's surface in detail and orbit the asteroid to calculate its mass.

On 18 June 2019, NASA announced that the OSIRIS-REx spacecraft managed to get even closer and capture an image at a distance of 600 metres (2,000 ft) from Bennu's surface.
Posted by shawnlsu
Member since Nov 2011
23682 posts
Posted on 10/20/20 at 4:06 pm to
Update OP to reflect new time of 5:12CDT
Posted by LSUSUPERSTAR
TX
Member since Jan 2005
16312 posts
Posted on 10/20/20 at 4:12 pm to
No live images. Not until tomorrow will there be any video. Boo.
Posted by jmon
Mandeville, LA
Member since Oct 2010
8414 posts
Posted on 10/20/20 at 4:13 pm to
So this is how the asteroid crashes into earth! Just a little tap to give it a new course...
Posted by JPinLondon
not in London (currently NW Ohio)
Member since Nov 2006
7855 posts
Posted on 10/20/20 at 6:36 pm to
NASA’s OSIRIS-REx Spacecraft Successfully Touches Asteroid
Oct. 20, 2020 / RELEASE 20-103

NASA’s Origins, Spectral Interpretation, Resource Identification, Security, Regolith Explorer (OSIRIS-REx) spacecraft unfurled its robotic arm Tuesday, and in a first for the agency, briefly touched an asteroid to collect dust and pebbles from the surface for delivery to Earth in 2023.

This well-preserved, ancient asteroid, known as Bennu, is currently more than 200 million miles (321 million kilometers) from Earth. Bennu offers scientists a window into the early solar system as it was first taking shape billions of years ago and flinging ingredients that could have helped seed life on Earth. If Tuesday’s sample collection event, known as “Touch-And-Go” (TAG), provided enough of a sample, mission teams will command the spacecraft to begin stowing the precious primordial cargo to begin its journey back to Earth in March 2021. Otherwise, they will prepare for another attempt in January.

“This amazing first for NASA demonstrates how an incredible team from across the country came together and persevered through incredible challenges to expand the boundaries of knowledge,” said NASA Administrator Jim Bridenstine. “Our industry, academic, and international partners have made it possible to hold a piece of the most ancient solar system in our hands.”

At 1:50 p.m. EDT, OSIRIS-REx fired its thrusters to nudge itself out of orbit around Bennu. It extended the shoulder, then elbow, then wrist of its 11-foot (3.35-meter) sampling arm, known as the Touch-And-Go Sample Acquisition Mechanism (TAGSAM), and transited across Bennu while descending about a half-mile (805 meters) toward the surface. After a four-hour descent, at an altitude of approximately 410 feet (125 meters), the spacecraft executed the “Checkpoint” burn, the first of two maneuvers to allow it to precisely target the sample collection site, known as “Nightingale.”

Ten minutes later, the spacecraft fired its thrusters for the second “Matchpoint” burn to slow its descent and match the asteroid’s rotation at the time of contact. It then continued a treacherous, 11-minute coast past a boulder the size of a two-story building, nicknamed “Mount Doom,” to touch down in a clear spot in a crater on Bennu’s northern hemisphere. The size of a small parking lot, the site Nightingale site is one of the few relatively clear spots on this unexpectedly boulder-covered space rock.

“This was an incredible feat – and today we’ve advanced both science and engineering and our prospects for future missions to study these mysterious ancient storytellers of the solar system,” said Thomas Zurbuchen, associate administrator for NASA’s Science Mission Directorate at the agency’s headquarters in Washington. “A piece of primordial rock that has witnessed our solar system’s entire history may now be ready to come home for generations of scientific discovery, and we can’t wait to see what comes next.”

“After over a decade of planning, the team is overjoyed at the success of today’s sampling attempt,” said Dante Lauretta, OSIRIS-REx principal investigator at the University of Arizona in Tucson. “Even though we have some work ahead of us to determine the outcome of the event – the successful contact, the TAGSAM gas firing, and back-away from Bennu are major accomplishments for the team. I look forward to analyzing the data to determine the mass of sample collected.”

All spacecraft telemetry data indicates the TAG event executed as expected. However, it will take about a week for the OSIRIS-REx team to confirm how much sample the spacecraft collected.

Real-time data indicates the TAGSAM successfully contacted the surface and fired a burst of nitrogen gas. The gas should have stirred up dust and pebbles on Bennu’s surface, some of which should have been captured in the TAGSAM sample collection head. OSIRIS-REx engineers also confirmed that shortly after the spacecraft made contact with the surface, it fired its thrusters and safely backed away from Bennu.

“Today’s TAG maneuver was historic,” said Lori Glaze, Planetary Science Division director at NASA Headquarters in Washington. “The fact that we safely and successfully touched the surface of Bennu, in addition to all the other milestones this mission has already achieved, is a testament to the living spirit of exploration that continues to uncover the secrets of the solar system."
Posted by saint tiger225
San Diego
Member since Jan 2011
35399 posts
Posted on 10/20/20 at 6:41 pm to
FWIW, this is the first time we've put something into the orbit Of something other than that of a planet, moon or the sun. First time a probe has orbited around an asteroid.
This post was edited on 10/20/20 at 6:47 pm
Posted by saint tiger225
San Diego
Member since Jan 2011
35399 posts
Posted on 10/20/20 at 6:45 pm to
quote:

NASA Administrator Jim Bridenstine
This guy has been good for NASA, it seems. He can play the BS political game to get their funding and other stuff, but has also got a lot of shite done at/for NASA. He's also very good at communicating with/to the public and getting people excited about what's going on at NASA.
Posted by LSUisKING12
Baton Rouge
Member since Sep 2010
320 posts
Posted on 10/20/20 at 7:03 pm to
quote:

It is a potentially hazardous object that is listed on the Sentry Risk Table with the second-highest cumulative rating on the Palermo Technical Impact Hazard Scale. It has a cumulative 1-in-2,700 chance of impacting Earth between 2175 and 2199.


What if this small impact changed it’s trajectory just enough?
Posted by JPinLondon
not in London (currently NW Ohio)
Member since Nov 2006
7855 posts
Posted on 10/21/20 at 10:43 pm to
the TAG Maneuver yesterday:




Posted by EA6B
TX
Member since Dec 2012
14754 posts
Posted on 10/21/20 at 10:59 pm to
Great, they’re bringing a sample back to earth, guess no one on the team read the “ Andromeda Strain”!
Posted by Jim Rockford
Member since May 2011
98182 posts
Posted on 10/21/20 at 11:06 pm to
quote:

OSIRIS-REx


Latoya still won't let them have a parade.
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