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Unmanned Spaceflight.com > Other Missions > Cometary and Asteroid Missions
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helvick
Bummer. These guys really need to start getting some lucky breaks.sad.gif
dvandorn
OK -- that does it. Whoever hired Joe Btfsplk as Chief Engineer for Dawn just has got to be fired... sad.gif

-the other Doug
ElkGroveDan
This is one where I just have to hear the rest of the story. A person doesn't just "fall" on solar panels, unless maybe the pizza delivery guy took a wrong turn and went through an unlocked door.
AlexBlackwell
QUOTE (ElkGroveDan @ Jun 13 2007, 09:21 AM) *
This is one where I just have to hear the rest of the story. A person doesn't just "fall" on solar panels, unless maybe the pizza delivery guy took a wrong turn and went through an unlocked door.

I had visions of an old Chevy Chase skit from SNL.
djellison
I was thinking more the princples of comedy with pies and planks from Monty Python smile.gif
http://youtube.com/watch?v=seIdHOrUNSs

On a serious note - after than NOAA accident a couple of years back - this is a bad thing to happen sad.gif

Doug
lyford
"Hey, I bet that was a.... Say, do you's think that it.... Hey, could that have been a... gremlin?????"

I thought of the NOAA tumble myself, and hope it's not going to be as bad as that. It makes you want to cry out - "COME ON!!! This type of stuff just doesn't happen!" But I guess it does...
Analyst
Calm folks, please. When there are people, there are mistakes. This should not be about blame or ranting. I am sure everyone of us has made mistakes. This is not nice, but it is human. Btw, it looks like there will be no delay:

Link

Analyst
volcanopele
Well, now that we know the real story, you are right, that is just a simple mistake and those things happen.
AlexBlackwell
QUOTE (Analyst @ Jun 13 2007, 10:52 AM) *
I am sure everyone of us has made mistakes.

Sure. Why, just yesterday I was working on a $200 million xenon-powered leaf blower (with a tightly constrained launch period) and I slipped. So yeah, I know exactly how the Dawn tech feels.
ElkGroveDan
QUOTE (Analyst @ Jun 13 2007, 12:52 PM) *
Calm folks, please. When there are people, there are mistakes. This should not be about blame or ranting. I am sure everyone of us has made mistakes.

So were you the guy with the wrench, Analyst?
AlexBlackwell
QUOTE (ElkGroveDan @ Jun 13 2007, 11:11 AM) *
So were you the guy with the wrench, Analyst?

I was thinking that, or that he was the guy who fell into the guy with the wrench biggrin.gif
ElkGroveDan
QUOTE (AlexBlackwell @ Jun 13 2007, 01:07 PM) *
Sure. Why, just yesterday I was working on a $200 million xenon-powered leaf blower


I have to get one of those. They banned the hydrazine-powered leaf blowers in my town.
BPCooper
It appears it is nothing major and no delay:

http://space.newscientist.com/article/dn12...for-launch.html
AlexBlackwell
QUOTE (BPCooper @ Jun 13 2007, 11:37 AM) *
It appears it is nothing major and no delay:

http://space.newscientist.com/article/dn12...for-launch.html

Whew. Now I feel better. Hopefully, New Scientist won't have to retract this story.
stevesliva
QUOTE (AlexBlackwell @ Jun 13 2007, 05:07 PM) *
Sure. Why, just yesterday I was working on a $200 million xenon-powered leaf blower (with a tightly constrained launch period) and I slipped. So yeah, I know exactly how the Dawn tech feels.

LOL, And *I* was showing off the Picasso I'd just sold for $139 million and punched a hole in it with my elbow...

I, Steve Wynn, can definitely relate. unsure.gif
climber
You know what? I feel romantic that Dawn could still be launched on 07-07-07.
So, I'll not have to question myself if the date is written mm-dd-yy or dd--mm-yy or...
JRehling
QUOTE (AlexBlackwell @ Jun 13 2007, 12:24 PM) *
I had visions of an old Chevy Chase skit from SNL.


It was Steve Bartman who fell on the craft.
punkboi
New pics of Dawn's Delta II continuing to be prepped:

http://mediaarchive.ksc.nasa.gov/search.cf...rch.cfm?cat=173
BPCooper
"Marc Rayman who is helping oversee the Dawn launch campaign team at KSC has told SpaceDaily.com. "The report of a worker falling [on the Dawn spacecraft] is wrong; I don't know how such a rumor even got started. A tool made inadvertent contact with the back of the solar array (i.e., the side without solar cells). There is no reason to expect this to have an effect on our plans to launch on July..."

http://www.SpaceDaily.com
Mongo
QUOTE (stevesliva @ Jun 13 2007, 09:46 PM) *
LOL, And *I* was showing off the Picasso I'd just sold for $139 million and punched a hole in it with my elbow...

I, Steve Wynn, can definitely relate. unsure.gif

In another really big 'OOPS' moment, Toronto lawyer Gary Hoy hurled himself at a 24th floor office window to impress some visiting interns, and smashed through, earning himself a Darwin Award in the process.

How about the bottle of 1787 Margaux wine, with Thomas Jefferson's signature on the bottle, which owner Bill Sokolin accidently broke while rushing to show it to Le Grande Orange, Rusty Staub. It had reportedly been worth $500,000 (pre-breakage).

Too bad. It could have been used to christen the Delta II carrying Dawn .

Bill
nprev
Not to go too far OT, but humanity and precision technology can often be a dangerous mix... rolleyes.gif

Back in the day when I was a young, dumb airman at Edwards AFB I had just finally repaired a KC-135 autopilot dual-channel coupler that had given me nothing but grief for two days. As I proudly carried the heavy component towards the safety of its container, I somehow got one of my feet entangled in a pile of test equipment cables that I knew full well were there on the floor waiting to be inventoried and inspected...

Boom. Thud. Crunching sounds. The thing hit the concrete floor on a corner and bounced a few times.

Later, sound of supervisor chewing me up one side and down the other...the component was hopeless, we ended up condemning it to Depot maintenance where they undoubtedly cannibalized anything still useable & tossed the carcass. Never dropped anything else, though! smile.gif
Stu
QUOTE (Mongo @ Jun 14 2007, 01:47 AM) *
Too bad. It could have been used to christen the Delta II carrying Dawn .
Bill


The way things are going, it would probably have missed... rolleyes.gif
edstrick
"...Boom. Thud. Crunching sounds..."

I've never done anything THAT stupid.......so far today........

(gimme another 15 minutes).
punkboi
QUOTE (Stu @ Jun 13 2007, 10:33 PM) *
The way things are going, it would probably have missed... rolleyes.gif


Or the bottle wouldn't have shattered at all biggrin.gif
dvandorn
No, the bottle would have shattered. And the combination of the wine and the glass shards would have managed to debond the cork insulation on the upper stage, forcing a launch delay, which would have been the cause of yet another delay since they wouldn't be able to find the proper bonding agent, and/or it would be applied incorrectly...

"Destiny! Destiny! No escaping it for me!"

wink.gif

-the other Doug
Toma B
biggrin.gif biggrin.gif biggrin.gif

It's just a little crack:
Click to view attachment
AlexBlackwell
Voyage to the Giant Asteroids
Science@nasa.gov
June 15, 2007
climber
QUOTE (AlexBlackwell @ Jun 15 2007, 11:05 PM) *
Voyage to the Giant Asteroids
Science@nasa.gov
June 15, 2007


Did you use the "Send this story to a friend" link ? rolleyes.gif
mchan
B)-->
QUOTE(Toma B @ Jun 15 2007, 01:34 AM) *

It's just a little crack:
[/quote]
One hopes Dawn does not follow the lead of the Black Knight here. smile.gif
punkboi
Solar panel repaired:

http://mediaarchive.ksc.nasa.gov/search.cf...rch.cfm?cat=173
belleraphon1
Hubble images dwarf planet Ceres and Vesta...

precusor to DAWN data....

http://www.space.com/scienceastronomy/0706...ceresvesta.html

Go Hubble... Go DAWN...

Can hardly wait for DAWN to make harbor at these two worldlets.....

Craig
BPCooper
Here is a selection of photos I took today:

http://www.launchphotography.com/Dawn_cleanroom.html
ElkGroveDan
QUOTE (BPCooper @ Jun 20 2007, 02:55 PM) *
Here is a selection of photos I took today:

So may I assume you had your camera on a strap and held it tightly?
AlexBlackwell
NASA Briefing on Upcoming Launch of Asteroid Belt Mission
MEDIA ADVISORY: M07-71
June 20, 2007
John Flushing
QUOTE (belleraphon1 @ June 20th, 2007, 05:56 PM) *
Hubble images dwarf planet Ceres and Vesta...

precusor to DAWN data....

http://www.space.com/scienceastronomy/0706...ceresvesta.html

Go Hubble... Go DAWN...

Can hardly wait for DAWN to make harbor at these two worldlets.....

Craig



nprev
Reminds me of the Pioneer 10/11 images of Ganymede, Europa & Io...a few years later, surprise, surprise... cool.gif
antipode
Vesta actually looks like it would be pretty spherical if it hadn't taken that giant hit. That crater has excavated so deeply its going to be amazing to image...

Are those colours close to accurate naked eye colours?

P
Chmee
QUOTE (antipode @ Jun 20 2007, 09:29 PM) *
Vesta actually looks like it would be pretty spherical if it hadn't taken that giant hit. That crater has excavated so deeply its going to be amazing to image...

Are those colors close to accurate naked eye colors?

P


Wow, great photos, very nice teaser before Dawn. Almost looks "Mars-ish" with the red hue. Is that color enhanced?
stevesliva
QUOTE (Chmee @ Jun 20 2007, 09:50 PM) *
Almost looks "Mars-ish" with the red hue.

No, it's triton-ish! wink.gif
ElkGroveDan
QUOTE (antipode @ Jun 20 2007, 05:29 PM) *
Are those colours close to accurate naked eye colours?

According to the Space.com article "Color differences in the image reflect differences in surface chemicals," The STSI site says the images were taken in visible and UV, so to an extent it is false colors.

BTW there's a great Vesta rotation sequence there if anyone wants to try put it into an animation
http://hubblesite.org/newscenter/archive/r...007/27/image/d/
punkboi
QUOTE (BPCooper @ Jun 20 2007, 03:55 PM) *
Here is a selection of photos I took today:

http://www.launchphotography.com/Dawn_cleanroom.html


Great photos Ben... Wish I could be there to take photos of the launch on 7/7.
David
QUOTE (ElkGroveDan @ Jun 21 2007, 05:29 AM) *
BTW there's a great Vesta rotation sequence there if anyone wants to try put it into an animation
http://hubblesite.org/newscenter/archive/r...007/27/image/d/


Nice. I gather that the axis of rotation goes through the central peak of the crater, or pretty close?

I still don't know what to say to people who insist that Vesta is "a spheroid". It might have been once; it sure doesn't look like one now. Have any smaller asteroids of about the same inclination and mean orbital diameter been identified as possibly being pieces of Vesta?

(Which gives me the mad idea of a future astronaut corps tasked with the the job of finding all the scattered bits of exploded asteroids and... gluing them back together tongue.gif )
elakdawalla
Here's my version, which I'll be posting later today on the blog after I get some other stuff done.

One thing I tried to do was to take sequential frames and make a 3D animation, but it didn't seem to work too well -- the time steps were too discontinuous and quite widely separated in some cases. If someone here has some free time to play, it seems that some pairs of these images should make pretty good stereo pairs -- I just don't have time today to experiment.



--Emily
alan
QUOTE (David @ Jun 21 2007, 08:11 AM) *
Have any smaller asteroids of about the same inclination and mean orbital diameter been identified as possibly being pieces of Vesta?

(Which gives me the mad idea of a future astronaut corps tasked with the the job of finding all the scattered bits of exploded asteroids and... gluing them back together tongue.gif )

Yes, there is a Vesta family of asteroids. There are also Vestoids, asteroids that have spectra similar to Vesta that are not in the family, some of these are near-earth asteroids. There are even some meteorites that are believed to have originally been part of Vesta.
JRehling
QUOTE (nprev @ Jun 20 2007, 06:28 PM) *
Reminds me of the Pioneer 10/11 images of Ganymede, Europa & Io...a few years later, surprise, surprise... cool.gif


It's a nice point. Before I saw your post I was thinking that this kind of resolution could be called the "enigmatic zone". In a case where we know just what we're looking for (like the antimariner hemisphere of Mercury), we can interpret those fuzzy blotches (as ray craters). But on Ceres and Vesta, who knows? What is the closest analogue for a world "like" Ceres that we've seen up close -- Amalthea? Iapetus?

The best guess has to be that unresolved blobs are craters surfacing ice beneath a darker surface, but I wouldn't want to bet my paycheck on that.
volcanopele
Looking at Ceres, my thoughts run to Umbriel.
Ken90000
To me, Ceres looks like a larger version of Phoebe. Covered with darker material with ices exposed inside of craters and other topography.
Pavel
Here's the best I could do. I selected the frames with minimal difference and many features, but still, I can barely see the the stereo effect. However, my stereoscopic vision is not very good, so I'll post it anyway.
elakdawalla
Yeah, I can't say I see much difference either. Thanks for trying though.

--Emily
climber
QUOTE (elakdawalla @ Jun 21 2007, 10:49 PM) *
Yeah, I can't say I see much difference either. Thanks for trying though.

--Emily

Neither do I.
I guess Pavel belongs to the Flat Earth society anyway biggrin.gif
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