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OSIRIS-REx - 1999 RQ36

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karmaka:
Der Orbit von 1999 RQ36 , dem Ziel der OSIRIS-Rex Missiom
wurde mit sehr hoher Genauigkeit gemessen.

Dabei konnte sogar der Jarkowski-Effekt gemessen werden.

http://www.nasa.gov/topics/universe/features/yarkosky-asteroid.html


--- Zitat ---"In addition to the exciting Yarkovsky results, the low density shows that 1999 RQ36 is probably a loose aggregate of rocks--a so called rubble pile," said Jason Dworkin, the mission's project scientist and Chief of Astrochemistry at NASA's Goddard Space Flight Center in Greenbelt, Md. "This makes it an ideal target for OSIRIS-REx to collect loose surface material."
--- Ende Zitat ---

Jarkowski-Effekt: http://de.wikipedia.org/wiki/Jarkowski-Effekt

karmaka:
1999 RQ36 heißt jetzt BENNU

wie der altägyptischen Totengott (Benu) in seiner Form als göttlicher Purpurreiher

LINK

karmaka:
Seit Montag läuft der Countdown ...
knapp 1000 Tage bis zum Start

LINK

OSIRIS REx Channel

Thin Section:

--- Zitat von: karmaka am Mai 05, 2013, 23:18:57 Nachmittag ---... wie der altägyptische Totengott (Benu) in seiner Form als göttlicher Purpurreiher
--- Ende Zitat ---

Nanu !  :laughing:

http://de.wikipedia.org/wiki/Benu

Bernd  :prostbier:

karmaka:
Alles über (101955) Bennu

The Design Reference Asteroid for the OSIRIS-REx Mission Target (101955) Bennu

Carl W. Hergenrother, Maria Antonietta Barucci, Olivier Barnouin, Beau Bierhaus, Richard P. Binzel, William F. Bottke, Steve Chesley, Ben C. Clark, Beth E. Clark, Ed Cloutis, Christian Drouet d'Aubigny, Marco Delbo, Josh Emery, Bob Gaskell, Ellen Howell, Lindsay Keller, Michael Kelley, John Marshall, Patrick Michel, Michael Nolan, Bashar Rizk,Dan Scheeres, Driss Takir, David D. Vokrouhlický, Ed Beshore, Dante S. Lauretta

PDF LINK (open access)

LINK


--- Zitat ---The Design Reference Asteroid (DRA) is a compilation of all that is known about the OSIRIS-REx mission target, asteroid (101955) Bennu. It contains our best knowledge of the properties of Bennu based on an extensive observational campaign that began shortly after its discovery, and has been used to inform mission plan development and flight system design. The DRA will also be compared with post-encounter science results to determine the accuracy of our Earth-based characterization efforts. The extensive observations of Bennu in 1999 has made it one of the best-characterized near-Earth asteroids. Many physical parameters are well determined, and span a number of categories: Orbital, Bulk, Rotational, Radar, Photometric, Spectroscopic, Thermal, Surface Analog, and Environment Properties. Some results described in the DRA have been published in peer-reviewed journals while others have been reviewed by OSIRIS-REx Science Team members and/or external reviewers. Some data, such as Surface Analog Properties, are based on our best knowledge of asteroid surfaces, in particular those of asteroids Eros and Itokawa. This public release of the OSIRIS-REx Design Reference Asteroid is a annotated version of the internal OSIRIS-REx document OREX-DOCS-04.00-00002, Rev 9 (accepted by the OSIRIS-REx project on 2014-April-14). The supplemental data products that accompany the official OSIRIS-REx version of the DRA are not included in this release. We are making this document available as a service to future mission planners in the hope that it will inform their efforts.
--- Ende Zitat ---

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