Dawn has left LAMO. The good Doctor's journal describes the amount of science Dawn was able to gather.
Dawn should reach HAMO2 in mid-June and is scheduled to break orbit on 26 August.
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Dawn has left LAMO. The good Doctor's journal describes the amount of science Dawn was able to gather.
Dawn should reach HAMO2 in mid-June and is scheduled to break orbit on 26 August.
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Dawn reached HAMO2 several days ago. The actual science phase started over this last weekend. In late August, Dawn will leave Vesta.
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Dawn has left HAMO2. It will slowly stretch out its orbit around Vesta until 26 August. On that day, it will turn its back on the asteroid and begin the trek to Ceres.
Anyone know what happened to the links that were on the NASA page?
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Can you be a little bit more specific?Originally Posted by Lord Jubjub
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"Dumb all over, a little ugly on the side." -- Frank Zappa
"Your right to hold an opinion is not being contested. Your expectation that it be taken seriously is." -- Jason Thompson
"This is really very simple, but unfortunately it's very complicated." -- publius
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Never mind. All of the journal pages were unreachable last week. They have all been restored so . . .never mind.
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NASA's Dawn Prepares for Trek Toward Dwarf Planet
NASA's Dawn spacecraft is on track to become the first probe to orbit and study two distant solar system destinations, to help scientists answer questions about the formation of our solar system. The spacecraft is scheduled to leave the giant asteroid Vesta on Sept. 4 PDT (Sept. 5 EDT) to start its two-and-a-half-year journey to the dwarf planet Ceres.
Everything I need to know I learned through Googling.
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Dawn has given us many wonderful images of Vesta from its different orbits!Dawn has accumulated enough info about Vesta to keep scientists more than happy over the next 2 1/2 years while in makes the trip to Ceres!
Order of Kilopi
It's hard to believe how quickly the time went! Here's to more adventures at Ceres!
Vulcan Administrator
Modern probes seem to require lots of patience: Dawn, Messenger, New Horizons....
Everything I need to know I learned through Googling.
Order of Kilopi
Hey, Voyager took a lot of patience, too!
Order of Kilopi
And we've gotten so accustomed to it that it seemed really strange when LRO arrived at the moon after just a couple of days!
Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.
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Rosetta!
____________
"Dumb all over, a little ugly on the side." -- Frank Zappa
"Your right to hold an opinion is not being contested. Your expectation that it be taken seriously is." -- Jason Thompson
"This is really very simple, but unfortunately it's very complicated." -- publius
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Insert awesome title here
Some smart alec invented a cheaper way to do interplanetary flight and so now convoluted transfers are in vogue.
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Everything has been stowed away, last goodbyes have been made, Dawn has turned away from Vesta, and will be underway to Ceres with the next few hours.
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Bon Voyage
Vulcan Administrator
Everything I need to know I learned through Googling.
Order of Kilopi
It looks like a loaf of homemade bread left out in the rain, or a polyhedral die with the corners worn off.
STARGAZING: All I see are the lights of a billion places I'll never go. --Howard Tayler, Schlock Mercenary
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Yes, Dawn's now off to the world Ceres.
Dawn Mission: News & Events > Dawn Sees Hydrated Minerals on Giant Asteroid
Remains of comets?Pothole-like features mark some of the asteroid's surface where the volatiles, likely water, released from hydrated minerals boiled off. While Dawn did not find actual water ice at Vesta, there are signs of hydrated minerals delivered by meteorites and dust evident in the giant asteroid's chemistry and geology. The findings appear today in the journal Science.
Rather satisfying.GRaND's data are the first direct measurements describing the elemental composition of Vesta's surface. Dawn's elemental investigation by the instrument determined the ratios of iron to oxygen and iron to silicon in the surface materials. The new findings solidly confirm the connection between Vesta and a class of meteorites found on Earth called the Howardite, Eucrite and Diogenite meteorites, which have the same ratios for these elements. In addition, more volatile-rich fragments of other objects have been identified in these meteorites, which supports the idea that the volatile-rich material was deposited on Vesta.
From Science magazine, though published 11 May 2012.
The Geologically Recent Giant Impact Basins at Vesta’s South Pole
Rheasilvia and Veneneia; the impact that made Rheasilvia obliterated half of Veneneia. They likely happened about 1 or 2 billion years ago, and they likely made Vestoid asteroids and Howardite, Eucrite and Diogenite (HED) meteorites.
Spectroscopic Characterization of Mineralogy and Its Diversity Across Vesta
Surface consistent with HED-meteorite composition. Evidence of layering and a possible former magma ocean.
Color and Albedo Heterogeneity of Vesta from Dawn
Color variations ~ composition variations.
The Violent Collisional History of Asteroid 4 Vesta
Northern hemisphere: relatively old compared to southern hemisphere.
Dawn at Vesta: Testing the Protoplanetary Paradigm
Vesta’s Shape and Morphology
Vesta is sort of halfway in between smaller asteroids and larger objects like the Moon and terrestrial planets.
I found lots of earlier papers, some of which propose results that Dawn observations have confirmed, like the large southern craters and the HED-meteorite connection.
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The good doctor posts his first monthly update for the trek to Ceres. There will be numbers.
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You threw me for a minute. I thought you meant Isaac Asimov.
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Dr. Rayman writes of ellipses and orbits. Dawn will reach aphelion on 2 Nov and perihelion next October.
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And then there were two. Apparently another reaction wheel has encountered friction. See the latest Journal Entry for reassurances that all is still well.
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Dr. Raymon closes out 2012 with another post in his Journal
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The good doctor might consider writing tourist guides considering his flowery prose in his latest journal entry.
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And now for an informal discussion of orbital velocities.
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Dr. Rayman discusses the care and feeding of Dawn.
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Dawn is actually closer to the Sun than Vesta. Dr. Raymon discusses orbital mechanics.
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Dr. Raymon has little to say this month except to say Dawn has been under thrust longer than any other human spacecraft. The only limit to the length of time for thrusting is the size of the memory banks needed to hold the operating conditions until they are transmitted back to Earth.
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