Author Topic: OSIRIS-REx/OSIRIS-APEX Mission Updates  (Read 141958 times)

Offline plutogno

  • Full Member
  • ****
  • Posts: 892
  • Toulouse, France and Milan, Italy
  • Liked: 240
  • Likes Given: 35
Re: OSIRIS-REx/OSIRIS-APEX Mission Updates
« Reply #60 on: 01/22/2019 04:12 pm »
Voyager 1 did not resolve the Moon, IIRC

Offline jacqmans

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 21709
  • Houten, The Netherlands
  • Liked: 8562
  • Likes Given: 320
Re: OSIRIS-REx/OSIRIS-APEX Mission Updates
« Reply #61 on: 01/24/2019 05:58 pm »
Experts to discuss the OSIRIS-REx asteroid sample-return mission

Toronto, Ontario, January 24, 2019 — On January 25, 2019, a ROM Connects event will be held at the Royal Ontario Museum: Dan Riskin, former co-host of “Daily Planet,” the Discovery Channel’s flagship science series, will moderate a panel of experts who will provide the latest updates on the OSIRIS-REx mission.

Media representatives are invited to attend. Those who cannot go to the event in person can watch it live on the Canadian Space Agency’s YouTube channel.

Date:           January 25, 2019

Time:         6:00 p.m. ET

What:          Panel of experts on the OSIRIS-REx mission

Who:           Tim Haltigin, planetary senior mission scientist, Canadian Space Agency

                 Mike Daly, professor, Department of Earth and Space Science and Engineering, York University

Kate Howells, member of The Planetary Society and the Government of Canada’s Space Advisory Board

Kim Tait, mineralogy curator, Royal Ontario Museum
Dan Riskin, moderator

Where:        Royal Ontario Museum

                 Signy and Cléophée Eaton Theatre – Level 1B

                 100 Queen’s Park, Toronto, Ontario M5S 2C6

Jacques :-)

Offline Tywin

Re: OSIRIS-REx/OSIRIS-APEX Mission Updates
« Reply #62 on: 01/24/2019 07:46 pm »
Very interesting report about both missions, Osiris-Rex and Hayabusa-2  8)

https://www.sciencenews.org/article/asteroid-sample-missions-hayabusa2-ryugu-osiris-rex-bennu

« Last Edit: 01/24/2019 07:47 pm by Tywin »
The knowledge is power...Everything is connected...
The Turtle continues at a steady pace ...

Offline mcgyver

  • Full Member
  • ****
  • Posts: 633
  • milan, rome
  • Liked: 182
  • Likes Given: 142
Re: OSIRIS-REx/OSIRIS-APEX Mission Updates
« Reply #63 on: 03/05/2019 07:29 am »
3d orbit page updated as per new NASA Horizons ephemerides, available now up to March 13th:
http://win98.altervista.org/space/exploration/osiris/osiris-3d.html
« Last Edit: 03/05/2019 07:31 am by mcgyver »

Offline mcgyver

  • Full Member
  • ****
  • Posts: 633
  • milan, rome
  • Liked: 182
  • Likes Given: 142
Re: OSIRIS-REx/OSIRIS-APEX Mission Updates
« Reply #64 on: 03/05/2019 07:33 am »
Schedule:



Orbital B

Collect lidar and radiometric data for high resolution topographic map and gravity model; observe candidate sampling sites and downselect for reconnaissance

Mar. 2019

Reconnaissance

Conduct sorties for closer look at up to 4 candidate sampling sites and select 1

May 2019

TAG rehearsal

Systematically and deliberately practice steps of sample collection sequence

Aug. 2019

Sample collection

Collect >60g (Level 2 requirement) of pristine bulk regolith and 26 cm2 of surface material, and stow it in the SRC (Sample Return Capsule)

Sept. 2019

Online Blackstar

  • Veteran
  • Senior Member
  • *****
  • Posts: 15289
  • Liked: 7827
  • Likes Given: 2
Re: OSIRIS-REx/OSIRIS-APEX Mission Updates
« Reply #65 on: 03/05/2019 07:47 pm »
There's going to be some kind of big reveal about Bennu in a couple of weeks at the LPSC conference. I don't know what it is, but I suspect it has to do with a very low density or maybe a very large void inside the asteroid.

Or maybe there's stuff flying off the surface.
« Last Edit: 03/16/2019 08:43 pm by Blackstar »

Offline Eosterwine

  • Member
  • Posts: 79
  • Liked: 48
  • Likes Given: 0
Re: OSIRIS-REx/OSIRIS-APEX Mission Updates
« Reply #66 on: 03/05/2019 09:05 pm »
More pictures would be nice.   :-\


Offline Phil Stooke

  • Full Member
  • ****
  • Posts: 1354
  • Canada
  • Liked: 1424
  • Likes Given: 1
Re: OSIRIS-REx/OSIRIS-APEX Mission Updates
« Reply #67 on: 03/05/2019 11:41 pm »
A global map would be nice!

Online Blackstar

  • Veteran
  • Senior Member
  • *****
  • Posts: 15289
  • Liked: 7827
  • Likes Given: 2
Re: OSIRIS-REx/OSIRIS-APEX Mission Updates
« Reply #68 on: 03/06/2019 03:04 am »
By "big reveal" I mean surprise. There's something unexpected about Bennu.

Offline Eric Hedman

  • Senior Member
  • *****
  • Posts: 2314
  • The birthplace of the solid body electric guitar
  • Liked: 1953
  • Likes Given: 1144
Re: OSIRIS-REx/OSIRIS-APEX Mission Updates
« Reply #69 on: 03/06/2019 06:30 am »
By "big reveal" I mean surprise. There's something unexpected about Bennu.
This is what I love about these missions.  We don't know what we don't know until we do.  I'm looking forward to the "big reveal."

Offline mcgyver

  • Full Member
  • ****
  • Posts: 633
  • milan, rome
  • Liked: 182
  • Likes Given: 142
Re: OSIRIS-REx/OSIRIS-APEX Mission Updates
« Reply #70 on: 03/06/2019 06:50 am »
By "big reveal" I mean surprise. There's something unexpected about Bennu.
Let me guess.
Water.


Offline vjkane

  • Full Member
  • ****
  • Posts: 1269
  • Liked: 617
  • Likes Given: 5
Re: OSIRIS-REx/OSIRIS-APEX Mission Updates
« Reply #71 on: 03/06/2019 03:18 pm »
There's going to be some kind of big reveal about Bennu in a couple of weeks at the LPSC conference. I don't know what it is, but I suspect it has to do with a very low density or maybe a very large void inside the asteroid.
I think that OSIRIS-REx will discover that the asteroid is hollow inside and is in fact a colony ship piloted by meerkat-sized aliens from a distant star.   ;)

Offline jacqmans

  • Moderator
  • Global Moderator
  • Senior Member
  • *****
  • Posts: 21709
  • Houten, The Netherlands
  • Liked: 8562
  • Likes Given: 320
Re: OSIRIS-REx/OSIRIS-APEX Mission Updates
« Reply #72 on: 03/14/2019 08:36 pm »
 March 14, 2019 
MEDIA ADVISORY M19-017

NASA to Host Media Teleconference on Asteroid Sample Return Mission

NASA is hosting a media teleconference at 1:30 p.m. EDT Tuesday, March 19, to announce new science from the agency’s first mission to return to Earth an asteroid sample that may contain unaltered material from the very beginning of our solar system.

The Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer (OSIRIS-REx) spacecraft launched Sept. 8, 2016, and began orbiting the asteroid Bennu on Dec. 31, 2018. Since its arrival at Bennu, the probe has been investigating the asteroid and searching for an ideal site for sample collection. 

Bennu is only slightly wider than the height of the Empire State Building and is the smallest body ever orbited by spacecraft. Studying Bennu with OSIRIS-REx will allow researchers to learn more about the origins of our solar system, the sources of water and organic molecules on Earth, and the hazards and resources in near-Earth space. 

The teleconference participants are:

Lori Glaze, acting director, NASA’s Planetary Science Division, WashingtonDante Lauretta, OSIRIS-REx principal investigator, University of Arizona, TucsonCoralie Adam, OSIRIS-REx flight navigator, KinetX, Inc. Space Navigation and Flight Dynamics, Simi Valley, Calif.Rich Burns, OSIRIS-REx project manager, NASA’s Goddard Space Flight Center, Greenbelt, Md.

For dial-in information, media must send their name, affiliation and phone number to Lonnie Shekhtman at [email protected] by 10 a.m. March 19. 

Teleconference audio and visuals will stream live at:

https://www.nasa.gov/live 

For more information about NASA’s OSIRIS-REx mission, visit:

https://www.nasa.gov/osiris-rex

Jacques :-)

Offline Star One

  • Senior Member
  • *****
  • Posts: 13997
  • UK
  • Liked: 3974
  • Likes Given: 220
Re: OSIRIS-REx/OSIRIS-APEX Mission Updates
« Reply #73 on: 03/19/2019 04:43 pm »
Judging by this article I am guessing the seven papers have already been published?

Unexpected discoveries from near-Earth asteroid Bennu about origins of life, Nasa reveals

Quote
Nasa has revealed "unexpected" findings from the first data received back from a nearby asteroid, offering clues to the origins of the solar system and even life on Earth.

Offline notsorandom

  • Full Member
  • ****
  • Posts: 1740
  • Ohio
  • Liked: 438
  • Likes Given: 91
Re: OSIRIS-REx/OSIRIS-APEX Mission Updates
« Reply #74 on: 03/19/2019 05:32 pm »
Plumes!
Quote
A NASA spacecraft that will return a sample of a near-Earth asteroid named Bennu to Earth in 2023 made the first-ever close-up observations of particle plumes erupting from an asteroid’s surface.
NASA Mission Reveals Asteroid Has Big Surprises
https://solarsystem.nasa.gov/news/877/nasa-mission-reveals-asteroid-has-big-surprises/

Offline zubenelgenubi

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 11183
  • Arc to Arcturus, then Spike to Spica
  • Sometimes it feels like Trantor in the time of Hari Seldon
  • Liked: 7405
  • Likes Given: 72488
Re: OSIRIS-REx/OSIRIS-APEX Mission Updates
« Reply #75 on: 03/19/2019 11:37 pm »
Plumes!
Quote
A NASA spacecraft that will return a sample of a near-Earth asteroid named Bennu to Earth in 2023 made the first-ever close-up observations of particle plumes erupting from an asteroid’s surface.
NASA Mission Reveals Asteroid Has Big Surprises
https://solarsystem.nasa.gov/news/877/nasa-mission-reveals-asteroid-has-big-surprises/
Image attached--wow!
Support your local planetarium! (COVID-panic and forward: Now more than ever.) My current avatar is saying "i wants to go uppies!" Yes, there are God-given rights. Do you wish to gainsay the Declaration of Independence?

Offline eeergo

Re: OSIRIS-REx/OSIRIS-APEX Mission Updates
« Reply #76 on: 03/19/2019 11:48 pm »
To put this into context: the rocks acquire orbital velocity with 2-4 m/s, which they can do by just rolling down a slope and bouncing a bit upwards at some point!

EDIT: And more explanation, paraphrasing what was said today during the LPSC meeting: there is a transition between high and low slopes at ±23º, which is where the asteroid's Roche lobe intersects Bennu's surface.
« Last Edit: 03/20/2019 12:31 am by eeergo »
-DaviD-

Offline mrhuggy

  • Full Member
  • ****
  • Posts: 663
  • East Yorkshire, UK
  • Liked: 437
  • Likes Given: 15
Re: OSIRIS-REx/OSIRIS-APEX Mission Updates
« Reply #77 on: 03/20/2019 06:39 pm »
A hi res global photo mosaic has been released - https://www.asteroidmission.org/bennu-global-mosaic-mar-2019-2/

Does look rather rocky.

Offline Phil Stooke

  • Full Member
  • ****
  • Posts: 1354
  • Canada
  • Liked: 1424
  • Likes Given: 1
Re: OSIRIS-REx/OSIRIS-APEX Mission Updates
« Reply #78 on: 03/28/2019 06:50 pm »
That goes to 70 degrees N and S.  Here I have used other images to add the poles and made a different kind of map showing the shape of Bennu as well as its surface features. 


 

Online meekGee

  • Senior Member
  • *****
  • Posts: 14158
  • N. California
  • Liked: 14046
  • Likes Given: 1392
Re: OSIRIS-REx/OSIRIS-APEX Mission Updates
« Reply #79 on: 03/31/2019 01:57 pm »
To put this into context: the rocks acquire orbital velocity with 2-4 m/s, which they can do by just rolling down a slope and bouncing a bit upwards at some point!

EDIT: And more explanation, paraphrasing what was said today during the LPSC meeting: there is a transition between high and low slopes at ±23º, which is where the asteroid's Roche lobe intersects Bennu's surface.
The low escape velocity is due to low local g, which also means it's hard to get to 2-4 m/s just by rolling downhill, no?

Basically even if you free-fall from the top of that slope and hit a lossless trampoline, you won't achieve ve
ABCD - Always Be Counting Down

Tags:
 

Advertisement NovaTech
Advertisement Northrop Grumman
Advertisement
Advertisement Margaritaville Beach Resort South Padre Island
Advertisement Brady Kenniston
Advertisement NextSpaceflight
Advertisement Nathan Barker Photography
0