Tomorrow morning at 8am AEST humans will begin moving objects around in the universe with unknown consequences.
ah nondeterminism
Which one is the cue ball?
https://www.tokyo3.org/forums/holiday/topics/7211/
Wow so the existing thread wasn’t good enough for you I guess.
dv said:
https://www.tokyo3.org/forums/holiday/topics/7211/Wow so the existing thread wasn’t good enough for you I guess.
Bubblecar told me to do it, Miss,
dv said:
https://www.tokyo3.org/forums/holiday/topics/7211/Wow so the existing thread wasn’t good enough for you I guess.
PWM can’t remember what he had for breakfast…
Peak Warming Man said:
dv said:
https://www.tokyo3.org/forums/holiday/topics/7211/Wow so the existing thread wasn’t good enough for you I guess.
Bubblecar told me to do it, Miss,
If Bubblecar told you to eat a spider, I suppose you wouldn’t hesitate.
Anyway now we have two threads so this event is unlikely to be overlooked.
We should see it then, no topical storms that could turn into a hurricane to delay footage…
Peak Warming Man said:
Tomorrow morning at 8am AEST humans will begin moving objects around in the universe with unknown consequences.
Not the DART!
Bogsnorkler said:
Peak Warming Man said:
Tomorrow morning at 8am AEST humans will begin moving objects around in the universe with unknown consequences.Not the DART!
It’s a wee ripper
dartos
Coverage now started.
https://www.youtube.com/watch?v=21×5lGlDOfg
Bubblecar said:
Coverage now started.https://www.youtube.com/watch?v=21×5lGlDOfg
Great but computer says Video no longer available.
I’ll keep trying.
Stand By
Over.
Peak Warming Man said:
Bubblecar said:
Coverage now started.https://www.youtube.com/watch?v=21×5lGlDOfg
Great but computer says Video no longer available.
I’ll keep trying.
Stand By
Over.
change the x
Got it here
Over.
https://www.space.com/nasa-dart-asteroid-impact-preview
I think the fat old ball prick with the beard and the glasses was holding the poll up.
was the scientist wearing a shirt with mostly undressed women and guns this time
Bogsnorkler said:
Peak Warming Man said:
Bubblecar said:
Coverage now started.https://www.youtube.com/watch?v=21×5lGlDOfg
Great but computer says Video no longer available.
I’ll keep trying.
Stand By
Over.
change the x
Surely if they’re an ex they’re already being changed.
SCIENCE said:
Bogsnorkler said:
Peak Warming Man said:Great but computer says Video no longer available.
I’ll keep trying.
Stand By
Over.
change the x
Surely if they’re an ex they’re already being changed.
They are showig it on ABC news breakfast. However they only are getting about 6 pixels.
All systems go for impact in about 15 minutes or so.
Bubblecar said:
All systems go for impact in about 15 minutes or so.
…24 minutes or so.
They are doing some polite golf claps but it’s only a small team.
Peak Warming Man said:
They are doing some polite golf claps but it’s only a small team.
Precision lock. They’re no longer tracking Diddywop, only Doomphus.
Bubblecar said:
Peak Warming Man said:
They are doing some polite golf claps but it’s only a small team.
Precision lock. They’re no longer tracking Diddywop, only Doomphus.
Sorry, that was my translation app there.
They’re no longer tracking Didymos, only Dimorphos.
10 x minutes to impact.
T-minus 6 minutes.
Still no surface detail visible on Dimorphos.
T-minus 4 minutes and counting.
Some surface shadowing appearing on Dimorphos.
It’s too high, it’s too high, it’s going to miss.
Peak Warming Man said:
It’s too high, it’s too high, it’s going to miss.
It’s crashed.
Well done. Some very close-up views there before BAngG!
Wow.
Peak Warming Man said:
It’s too high, it’s too high, it’s going to miss.
It bled.
When the signal failed it went red.
The closest snap before impact.
A few seconds before impact.
Bubblecar said:
The closest snap before impact.
And then billions of years of peaceful tranquility is shattered.
Peak Warming Man said:
Bubblecar said:
The closest snap before impact.
And then billions of years of peaceful tranquility is shattered.
Bump.
Looks like a crater rim catching the sun there in the southwest, was confusing at first.
Bubblecar said:
Looks like a crater rim catching the sun there in the southwest, was confusing at first.
Good photos, they were lucky with the weather.
Peak Warming Man said:
Bubblecar said:
Looks like a crater rim catching the sun there in the southwest, was confusing at first.
Good photos, they were lucky with the weather.
Looks like a clear sunny day there.
IDK much but Dimorphos looks like a real “trash pile” asteroid, so I wouldn’t be surprised if a lot of the KE is wasted in sending fragments.
dv said:
IDK much but Dimorphos looks like a real “trash pile” asteroid, so I wouldn’t be surprised if a lot of the KE is wasted in sending fragments.
Unfortunately we didn’t get any pictures of that.
Over the coming days, scientists will be receiving more images of Dimorphos, ones snapped by the Light Italian Cubesat for Imaging Asteroids (LICIACube), a tiny spacecraft that rode along with DART until earlier this month. LICIACube flew past the impact site just three minutes after the collision, photographing the cloud of debris that DART’s abrupt arrival flung into space. However, the cubesat also turned its two cameras to the unscarred side of Dimorphos, giving scientists additional data about the space rock.
dv said:
Over the coming days, scientists will be receiving more images of Dimorphos, ones snapped by the Light Italian Cubesat for Imaging Asteroids (LICIACube), a tiny spacecraft that rode along with DART until earlier this month. LICIACube flew past the impact site just three minutes after the collision, photographing the cloud of debris that DART’s abrupt arrival flung into space. However, the cubesat also turned its two cameras to the unscarred side of Dimorphos, giving scientists additional data about the space rock.
So they did get pictures?
A tiny bit of gloating here from me.
Spiny Norman said:
A tiny bit of gloating here from me.
Nice
dv said:
Spiny Norman said:
A tiny bit of gloating here from me.
Nice
He’s just bragging.
Spiny Norman said:
A tiny bit of gloating here from me.
Yep, nice work Centurion.
Not the Dart.
Peak Warming Man said:
Not the Dart.
it’s a wee ripper!
https://www.youtube.com/watch?v=hg4DiOmKlVM
Asteroid Smashing Looks Like Nothing You Ever Imagined
Scott Manley
Bogsnorkler said:
https://www.youtube.com/watch?v=hg4DiOmKlVMAsteroid Smashing Looks Like Nothing You Ever Imagined
Scott Manley
OMG that is a _bright _ explosion.
Kind of seems the liciacube images are maxed out though?
NASA reports coming in that the aseroid has returned fire.
NASA astronomers estimate that, in the Hubble images, the brightness of the system increased by three times after impact and held steady even eight hours after DART had struck Dimorphos.
The brightening shows the evolution of ejected debris.
Johns Hopkins University applied physics laboratory’s Andy Rivkin, the DART investigation team lead, has described it as an “unprecedented view of an unprecedented event”.
roughbarked said:
LinkNASA astronomers estimate that, in the Hubble images, the brightness of the system increased by three times after impact and held steady even eight hours after DART had struck Dimorphos.
The brightening shows the evolution of ejected debris.
Johns Hopkins University applied physics laboratory’s Andy Rivkin, the DART investigation team lead, has described it as an “unprecedented view of an unprecedented event”.
Ta.
I wonder if we could do the opposite and alter an asteroids trajectory to hit Earth or its a bit beyond us at the moment.
Cymek said:
I wonder if we could do the opposite and alter an asteroids trajectory to hit Earth or its a bit beyond us at the moment.
I don’t think things are that dire yet.
dv said:
Cymek said:
I wonder if we could do the opposite and alter an asteroids trajectory to hit Earth or its a bit beyond us at the moment.
I don’t think things are that dire yet.
I do remember reading not a lot of research had gone into altering an asteroids trajectory as the worry was some nation with a nutter in charge could do it for shits and giggles and get it to hit Earth.
Cymek said:
dv said:
Cymek said:
I wonder if we could do the opposite and alter an asteroids trajectory to hit Earth or its a bit beyond us at the moment.
I don’t think things are that dire yet.
I do remember reading not a lot of research had gone into altering an asteroids trajectory as the worry was some nation with a nutter in charge could do it for shits and giggles and get it to hit Earth.
Like Kim?
roughbarked said:
Cymek said:
dv said:I don’t think things are that dire yet.
I do remember reading not a lot of research had gone into altering an asteroids trajectory as the worry was some nation with a nutter in charge could do it for shits and giggles and get it to hit Earth.
Like Kim?
I guess we just have to hope that no nutter ever runs a country or an aerospace company.
Cymek said:
dv said:
Cymek said:
I wonder if we could do the opposite and alter an asteroids trajectory to hit Earth or its a bit beyond us at the moment.
I don’t think things are that dire yet.
I do remember reading not a lot of research had gone into altering an asteroids trajectory as the worry was some nation with a nutter in charge could do it for shits and giggles and get it to hit Earth.
The Fate of the Next Generation Depends on You.
A month ago you were a lunar research chief, collecting data from a minor base on the moon’s surface – doing your job. At first no one believed that Earth was doomed, but it came, just as they had predicted. You and your party had a ringside seat to unspeakable destruction and chaos. Now, in the shadow of the blackened husk that was once Earth, you plan your strategy for saving humanity not as a scientist, but as leader of the juman race.
roughbarked said:
Cymek said:
dv said:I don’t think things are that dire yet.
I do remember reading not a lot of research had gone into altering an asteroids trajectory as the worry was some nation with a nutter in charge could do it for shits and giggles and get it to hit Earth.
Like Kim?
That was who I was thinking of
Cymek said:
roughbarked said:
Cymek said:I do remember reading not a lot of research had gone into altering an asteroids trajectory as the worry was some nation with a nutter in charge could do it for shits and giggles and get it to hit Earth.
Like Kim?
That was who I was thinking of
Tamb said:
Cymek said:
roughbarked said:Like Kim?
That was who I was thinking of
There is another contender.
He doesn’t actually want to risk hurting himself.
captain_spalding said:
Powered by ACME?
roughbarked said:
captain_spalding said:
Powered by ACME?
Probably the Acme ‘Little Giant’ rocket engine.
(I don’t know how much longer this will continue to work)
Open up a Google browser, and type the words … NASA Dart … into the search bar
AussieDJ said:
(I don’t know how much longer this will continue to work)Open up a Google browser, and type the words … NASA Dart … into the search bar
Yep :)
sibeen said:
AussieDJ said:
(I don’t know how much longer this will continue to work)Open up a Google browser, and type the words … NASA Dart … into the search bar
Yep :)
I’m happy to report that the sensible person’s search engine does not engage in such nonsense.
The Rev Dodgson said:
sibeen said:
AussieDJ said:
(I don’t know how much longer this will continue to work)Open up a Google browser, and type the words … NASA Dart … into the search bar
Yep :)
I’m happy to report that the sensible person’s search engine does not engage in such nonsense.
Not everyone are sheep.
AussieDJ said:
(I don’t know how much longer this will continue to work)Open up a Google browser, and type the words … NASA Dart … into the search bar
:)
Nice one
:)
Dart’s accompanying cubesat took a photo of the earth and moon…
It’s still doing it:
roughbarked said:
NASA’s DART smash created asteroid debris tail more than 10,000 kilometres long
Space Vandals.
NASA’s DART smash created asteroid debris tail more than 10,000 kilometres long
Last month NASA smashed a spacecraft into an asteroid to see if it would change course.
Now a new image of the unprecedented fallout that followed the DART mission has been released.
Taken two days after the initial impact with asteroid moonlet Dimorphos, the image shows an expanding, comet-like tail more than 10,000 kilometres long.
Tau.Neutrino said:
UpdateHow Big was the DART Impact?! | JWST, Hubble and More Observe NASA Crash Site
Ta. The brightening for so many hours suggests much of the disturbed dust and debris was in no hurry to settle back down on the surface.
Scientists had predicted the DART impact would shorten the orbital path of Dimorphos by at least 10 minutes but said they would have considered a change as little as 73 seconds a success.
A comparison of measurements before and after the impact show a 32-minute shortening of Dimorphos’s trajectory.
roughbarked said:
Scientists had predicted the DART impact would shorten the orbital path of Dimorphos by at least 10 minutes but said they would have considered a change as little as 73 seconds a success.A comparison of measurements before and after the impact show a 32-minute shortening of Dimorphos’s trajectory.
Nice
dv said:
roughbarked said:
Scientists had predicted the DART impact would shorten the orbital path of Dimorphos by at least 10 minutes but said they would have considered a change as little as 73 seconds a success.A comparison of measurements before and after the impact show a 32-minute shortening of Dimorphos’s trajectory.
Nice
It is impressive.
https://www.theguardian.com/science/2022/oct/11/nasa-dart-spacecraft-asteroid-successful
Update
Asteroid grows two tails after DART spacecraft collision
Astronomers have been keenly watching the asteroid Didymos since the historic DART mission successfully crashed a spacecraft into it last month. And now, Hubble has detected something unexpected – the asteroid has sprouted two tails.
more…
Where should we impact an asteroid to effectively deflect its orbit?
Recently, NASA’s Double Asteroid Redirection Test (DART) spacecraft crashed into a 170 m asteroid Dimorphos at 6.6 km/s, as the first on-orbit demonstration of deflecting an asteroid by kinetic impact. The DART spacecraft was set to impact the center of Dimorphos nearly head-on. Earth-based telescopes have now confirmed that impact successfully changed Dimorphos’ orbit period by 32 minutes, much more than expected.
But, where should we impact an asteroid to most effectively deflect its orbit? Simply towards the center of the asteroid? These questions have yet to be well investigated.
Optimal impact location and direction for near-spherical asteroid Bennu and elongated asteroid Itokawa.
Tau.Neutrino said:
Where should we impact an asteroid to effectively deflect its orbit?
Recently, NASA’s Double Asteroid Redirection Test (DART) spacecraft crashed into a 170 m asteroid Dimorphos at 6.6 km/s, as the first on-orbit demonstration of deflecting an asteroid by kinetic impact. The DART spacecraft was set to impact the center of Dimorphos nearly head-on. Earth-based telescopes have now confirmed that impact successfully changed Dimorphos’ orbit period by 32 minutes, much more than expected.
But, where should we impact an asteroid to most effectively deflect its orbit? Simply towards the center of the asteroid? These questions have yet to be well investigated.
Optimal impact location and direction for near-spherical asteroid Bennu and elongated asteroid Itokawa.
so they need to do a few RCTs on this before it’s meaningful in any way
SCIENCE said:
Tau.Neutrino said:
Where should we impact an asteroid to effectively deflect its orbit?
Recently, NASA’s Double Asteroid Redirection Test (DART) spacecraft crashed into a 170 m asteroid Dimorphos at 6.6 km/s, as the first on-orbit demonstration of deflecting an asteroid by kinetic impact. The DART spacecraft was set to impact the center of Dimorphos nearly head-on. Earth-based telescopes have now confirmed that impact successfully changed Dimorphos’ orbit period by 32 minutes, much more than expected.
But, where should we impact an asteroid to most effectively deflect its orbit? Simply towards the center of the asteroid? These questions have yet to be well investigated.
Optimal impact location and direction for near-spherical asteroid Bennu and elongated asteroid Itokawa.
so they need to do a few RCTs on this before it’s meaningful in any way
Yes. collisions are not simple when complex shapes are involved with other things like speed, spin etc.
.
this bit
Tsinghua University proposed an optimal kinetic-impact geometry to improve the effective magnitude of kinetic-impact deflection, which should promote our understanding of how to make full use of a kinetic impactor and get best results. They found a well-designed off-center impact appeared to increase the deflection efficiency by over 50% compared to the central impact used by the DART mission.
Their work shows a surprising result that no matter what the target asteroid looks like or which location/direction to impact, the velocity change of the asteroid is always located on a unique hodograph, which is only determined by the material properties of the asteroid. They call it the Delta-v hodograph.
“The Delta-v hodograph is actually a distortion of an ideal spherical surface. And the determination of a realistic profile requires quantifying the effect of impact angles on momentum transfer efficiencies, which can be calculated from hydrodynamical simulations of oblique impacts,” the researchers explained.
Something like this?
