NASA’s Dawn Mission Journey to the Asteroid Frontier

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Dawn Dawn NASA’s Dawn Mission Journey to the Asteroid Frontier Lucy McFadden, Co-Investigator Goddard Space Flight Center July 8, 2011 PA3 MSP 3 Summer Workshop 2011

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NASA’s Dawn Mission Journey to the Asteroid Frontier. Lucy McFadden, Co-Investigator Goddard Space Flight Center July 8, 2011 PA3 MSP 3 Summer Workshop 2011. The Dawn Mission. Traveling Back In Time. Dawn Explores the Earliest Epochs. - PowerPoint PPT Presentation

Transcript of NASA’s Dawn Mission Journey to the Asteroid Frontier

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NASA’s Dawn MissionJourney to the Asteroid Frontier

Lucy McFadden, Co-Investigator

Goddard Space Flight Center

July 8, 2011

PA3 MSP 3 Summer Workshop 2011

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DawnThe Dawn Mission

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Traveling Back In Time

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Dawn Explores the Earliest Epochs

Vesta and Ceres are intact survivors of the earliest epoch of planetary formation.

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CAIs

Chondrules

HED Differentiation Eucrites emplacement

Planetesimal DifferentiationAngrites

Pallasite

Mesosiderites

Mars

Earth

Planetary Accretion

#

Beginning of the Solar System

Vesta formed and Differentiated

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• Vesta was linked to basaltic achondrite meteorites (HEDs) using reflectance spectra [1970, McCord].

– Vesta and the HEDs share the same (basaltic) mineralogy.

• From geochemical analyses of these meteorites, we can make inferences about geologic processes on Vesta.

– These include inferences about the presence of an iron core and ancient aqueous fluids.

Vesta

Meteorites

Vesta is the only asteroid directly identified as a meteorite parent body.

Fe2+ in PyroxeneMg Fe

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The Asteroid Belt

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Spacecraft

Dry mass: 745 kg

Wet mass: 1240 kg

Solar array power (1 AU): 10.3 kW

Solar array power (3 AU): 1.3 kW

Delta II 7925H-9.5

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Interplanetary Trajectory

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Ion Propulsion

Deep Space 1

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Hydrazine tank

45 kg capacity

Xenon tank

450 kg capacity

Folded solar arraysIon thruster

2.3 meters

Ion Propulsion System

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Mapping Global Topographic Maps

Framing Camera techniques have been proven on many previous missions. The camera’s most recent

heritage comes from Venus Express.

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Map the Elemental Composition

Gamma ray and neutron detector (GRaND) techniques have been proven on Lunar Prospector. GRaND’s

most recent heritage is from Mars Odyssey

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Map the Mineralogical Composition

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DawnExploring New Worlds

Vesta

Dawn’s Itinerary

The Dawn Spacecraft will travel

• 6.3 billion kilometers (almost 4 billion miles)

• In almost ten years

• To the asteroids, 4 Vesta and 1 Ceres.

Ceres

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DawnMap the Gravity Field

Vesta Gravity from Shape Model

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Partners

– University of California, Los Angeles• Scientific Leadership

– JPL – Jet Propulsion Laboratory• Management and Navigation

– Orbital Sciences Corporation• Spacecraft design and build

– Los Alamos National Laboratory• GRAND instrument

– DLR – German Aerospace Center• Framing Camera

– Max Planck Institute for Solar System Research• Framing Camera

– ASI – Italian Space Agency• VIR

– New Roads School, University of Maryland, and McREL• Education and Public Outreach

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Learn More!

http://dawn.jpl.nasa.gov

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Unlocking the Mysteries

Science on the Edge of Our Solar System


Asteroid Hunter

Asteroid Hunter

Asteroid eye

Asteroid eye

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Asteroid Belt

Asteroid Belt

Asteroid Redirect Mission (ARM) - NASA · 20142015 20182019 2021. Asteroid Redirect Robotic Mission (ARRM) 20162017 2020. Asteroid rendezvous &capture Asteroid ... (IPS) thruster

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Dawn Spacecraft Exploring Asteroid Belt

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Vesta in the Light of Dawn : First Exploration of a Protoplanet ...Vesta in the Light of Dawn : First Exploration of a Protoplanet in the Asteroid Belt (2014 ) 2008 .pdf Figure 2:

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NASA’s Dawn Mission Journey to the Asteroid Frontier...Dawn Dawn Explores the Earliest Epochs Vesta and Ceres are intact survivors of the earliest epoch of planetary formation. During

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€¦  · Web viewThis image, taken by NASA’s Near Earth Asteroid Rendezvous mission in the year 2000, shows a close-up view of Eros, an asteroid with an orbit that takes it somewhat

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Unt4: asteroid part 2. Comets Comet Ikeya-Seki in the dawn sky in 1965.

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Asteroid Mining

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Dawn NASA’s Dawn Mission Journey to the Asteroid Frontier Lucy McFadden, Co-Investigator University of Maryland College Park, MD July 18, 2007 Night Sky.

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ASSET NEWSLETTER STARGAZER€¦ · Dawn at Ceres The Dawn Satellite has only just entered orbit around the largest asteroid. It is in the early days for Ceres science, but what Dawn

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S NASA’S DEVELOPMENT OF THE MULTI … an asteroid while emphasizing that Mars is its ultimate ... capsule known as the Multi-Purpose Crew Vehicle ... heavy lift” rocket known as

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INFORMING NASA’S ASTEROID INITIATIVE – A CITIZENS’ …...The Expert and Citizen Assessment of Science and Technology (ECAST) network is a collaboration among university, informal

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NASA’s FY2014 Asteroid Strategy · NASA’s FY2014 Asteroid Strategy An Integrated Strategy in Support of Human Exploration And Protection of the Planet April 10, 2013. Asteroid

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CONTENTS OF THE ASTEROID DAY PRESS KIT: About Asteroid ...

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Deep Space 1 Asteroid Flyby - Jet Propulsion Laboratory · PDF fileDeep Space 1 Asteroid Flyby ... The mission is managed for NASA’s Office of Space ... ble for industries to manufacture

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