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NASA´s Deep Impact Status Report

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Pollyannuh
7/3/2005 2:22 PM
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NASA´s Deep Impact Status Report

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I subscribe to a couple of NASA´s lists, and just received this update.

DC Agle (818) 393-9011

Jet Propulsion Laboratory, Pasadena, Calif.

Dolores Beasley (202) 358-1753

NASA Headquarters, Washington

Lee Tune (301) 405-4679

University of Maryland, College Park

News Release: 2005-108 July 3, 2005

Deep Impact Status Report

One hundred and seventy-one days into its 172-day journey to comet Tempel 1, NASA´s Deep Impact spacecraft successfully released its impactor at 11:07 p.m. Saturday, Pacific Daylight Time (2:07 a.m. Sunday, Eastern Daylight Time).

At release, the impactor was about 880,000 kilometers (547,000 miles) away from its quarry. The separation of flyby spacecraft and the washing-machine-sized, copper-fortified impactor is one in a series of important mission milestones that will cap off with a planned encounter with the comet at 10:52 p.m. Sunday, PDT (1:52 a.m. on July 4, EDT).

Six hours prior to impactor release, the Deep Impact spacecraft successfully performed its fourth trajectory correction maneuver. The 30-second burn changed the spacecraft´s velocity by about one kilometer per hour (less than one mile per hour). The goal of the burn is to place the impactor as close as possible to the direct path of onrushing comet Tempel 1.

Soon after the trajectory maneuver was completed, the impactor engineers began the final steps that would lead to it being ready for free flight. The plan culminated with activation of the impactor´s batteries at 10:12 p.m., PDT (1:12 a.m. Sunday, EDT). Deep Impact´s impactor has no solar cells; the vehicle´s batteries are expected to provide all the power required for its short day-long life.

In order to release the impactor, separation pyros fired allowing a spring to uncoil and separate the two spacecraft at a speed of about 35 centimeters per second (0.78 mile per hour).

With Tempel 1 closing the distance between it and impactor at about 10 kilometers (6 miles) per second, there is little time for mission controllers to admire their work. Twelve minutes after impactor release the flyby began a 14-minute long divert burn that slowed its velocity relative to the impactor by 102 meters per second (227 miles per hour), moving it out of the path of the onrushing comet nucleus and setting the stage for a ringside seat of celestial fireworks to come less than 24 hours later.

Deep Impact mission controllers have confirmed the impactor´s S-band antenna is talking to the flyby spacecraft. All impactor data including the expected remarkable images of its final dive into the comet´s nucleus will be transmitted to the flyby craft -- which will then downlink them to Deep Space Network antennas that are listening 134 million kilometers (83 million miles) away.

While all is going as expected on the Deep Impact spacecraft the comet itself is putting on something of a show. The 14-kilometer-long (8.7-mile-long) comet Tempel 1 displayed another cometary outburst on July 2 at 1:34 a.m. PDT (4:34 a.m.EDT) when a massive, short-lived blast of ice or other particles escaped from inside the comet´s nucleus and temporarily expanded the size and reflectivity of the cloud of dust and gas (coma) that surrounds it. The July 2 outburst is the fourth observed in the past three weeks.

Three of the outbursts appear to have originated from the same area on the surface of the nucleus but they do not occur every time that that area faces the Sun.

"The comet is definitely full of surprises so far and probably has a few more in store for us," said Deep Impact Project Manager Rick Grammier of NASA´s Jet Propulsion Laboratory, Pasadena, Calif. "None of this overly concerns us nor has it forced us to modify our nominal mission plan."

Information and images from a camera aboard Deep Impact´s impactor and flyby spacecraft can be watched in near-real time at www.nasa.gov/deepimpact .

For additional information about Deep Impact on the Internet, visit [link to deepimpact.jpl.nasa.gov] .

- end -

SS
12/8/2005 10:12 AM

Re: NASA´s Deep Impact Status Report	Quote
"Three of the outbursts appear to have originated from the same area on the surface of the nucleus but they do not occur every time that that area faces the Sun." I think these guys must read this forum... out.. SS

Anonymous Coward
12/8/2005 10:12 AM

Re: NASA´s Deep Impact Status Report	Quote
1:52 am EST.

Anonymous Coward
12/8/2005 10:12 AM

Re: NASA´s Deep Impact Status Report	Quote
""The comet is definitely full of surprises so far and probably has a few more in store for us," said Deep Impact Project Manager Rick Grammier of NASA´s Jet Propulsion Laboratory, Pasadena, Calif. "None of this overly concerns us nor has it forced us to modify our nominal mission plan." Hopefully not TOO many surprises!

zacksavage
12/8/2005 10:12 AM

Re: NASA´s Deep Impact Status Report	Quote
D E E P Z

Sister Mary Lunatic
12/8/2005 10:12 AM

Re: NASA´s Deep Impact Status Report	Quote
Do you realize that this thing is as close to us as the planet Mars? I thought it was way out in space -- outside the solar system. DUH. No wonder we´ll all get such a lovely ringside seat to the circus. SML

Pollyannuh
12/8/2005 10:12 AM

Re: NASA´s Deep Impact Status Report	Quote
I hope I´m awake tonight to see this. I´m so dayum tired today that I doubt I´ll make it. I hope anyone awake to see this will post their observations here because I´ll come check the board when I do get up!

Anonymous Coward
12/8/2005 10:12 AM

Re: NASA´s Deep Impact Status Report

Quote

"Do you realize that this thing is as close to us as the planet Mars? I thought it was way out in space -- outside the solar system. DUH. No wonder we´ll all get such a lovely ringside seat to the circus."

Do you have ANY idea about where things are in space, or the distances involved? Where do you think comets are usualy found? How far away do you think Mars is?

Have you ever read anthing about space before this latest fuss about nothing?

Jeez!!

Sister Mary Lunatic
12/8/2005 10:12 AM

Re: NASA´s Deep Impact Status Report

Quote

Have I any idea where things are in space? Yes.

Comets can come from anywhere -- sometimes they pass by once and are never seen again. Sometimes they come back like Halley´s Comet. (By the way, I waited my whole life to see Halley´s and was very disappointed -- Couldn´t see it with the bare eyeball -- I thought it would be big and scary like I´d read in history books.) I was thrilled by Hale-Bopp and Shoemaker-Levy.

I was just skimming the Deep Impact articles, not paying much attention to details. There´s nothing I can do about the mission or its results, good or bad. If the results are bad for the Earth, then I can rejoice that I don´t have to worry about paying taxes next year. But I don´t think anything will happen.

I do find it revolting that they staged this thing for the 4th of July. Fake public stunts suck.

Blessings upon you from the Sacred Monkeys of the Vatican....

Sister Mary Lunatic

sigh

Anonymous Coward
12/8/2005 10:12 AM

Re: NASA´s Deep Impact Status Report	Quote
So its not time to put my purple nikes on then yet, and take a nice sip of that cyanide laced apple juice?

Anonymous Coward
12/8/2005 10:12 AM

Re: NASA´s Deep Impact Status Report	Quote
News Conference on NASA TV at 8:30 PM PDT...11:30PM EDT tonight. Next News Conference will be 4 July at 1:00AM PDT...4:00AM EDT.

Anonymous Coward
12/8/2005 10:12 AM

Re: NASA´s Deep Impact Status Report	Quote
The outbursts are from running into grains of dust because of the antimatter core.

Anonymous Coward
12/8/2005 10:12 AM

Re: NASA´s Deep Impact Status Report	Quote
Could someone tell me what time it is going to hit Central Standard Time

marlboroman
12/8/2005 10:12 AM

Re: NASA´s Deep Impact Status Report	Quote
12:52 I think( [link to www.dxing.com] conversion chart.

Emperor Kenton
12/8/2005 10:12 AM

Re: NASA´s Deep Impact Status Report	Quote
Chandra Tempel 1 Xray [link to tinyurl.com]

Deep Impactor
12/8/2005 10:12 AM

Re: NASA´s Deep Impact Status Report	Quote
You know Pollyannah, we have an impoactor for you. Deep impactor cumming your way. you little slutmuffin:zkk_exanis:

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