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(The Verge)   Tesla roadster is headed past Mars orbit, out towards Ceres. Now what could Elon Musk possibly want to do with an asteroid? Uh-oh   ( theverge.com) divider line
    More: Followup, asteroid belt, Asteroid, Falcon Heavy, Solar System, Dwarf planet, Mars, Ceres, SpaceX CEO Musk  
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4164 clicks; posted to Geek » on 07 Feb 2018 at 7:50 AM (22 weeks ago)   |   Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



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2018-02-07 07:33:32 AM  
Yeah, subby. The Expanse is pretty good.
 
2018-02-07 07:35:20 AM  
Litter bug.
 
2018-02-07 08:01:42 AM  
So when will it come back around to earth's orbit?
 
2018-02-07 08:05:58 AM  

cgraves67: So when will it come back around to earth's orbit?


DoD will probably post orbital parameters in a few days.
 
2018-02-07 08:07:29 AM  
So in the years to come our children will look to the stars to observe "Elon's comet" or the "Tesla Roadster showers"?
 
2018-02-07 08:07:35 AM  

cgraves67: So when will it come back around to earth's orbit?


More than a year, less than two. Suffice to say, it'll be up there for a while.
 
2018-02-07 08:08:17 AM  
"Golly, our rocket is so powerful we accidentally sent a car-sized object to the mineral-rich but previously unreachable asteroid belt!"
 
2018-02-07 08:15:56 AM  

Guybird: So in the years to come our children will look to the stars to observe "Elon's comet" or the "Tesla Roadster showers"?


img.fark.netView Full Size
 
2018-02-07 08:21:13 AM  
Could this really be unplanned? Humans have been aiming planetary probes for 55 years now, and the math was done long before that.
 
2018-02-07 08:23:04 AM  
But now it seems that engine ignition worked a little too well.

No, the engine ignition worked a little too powerfully.  If it had worked "well" it wouldn't have overshot Mars.
 
2018-02-07 08:24:55 AM  

jaytkay: Could this really be unplanned? Humans have been aiming planetary probes for 55 years now, and the math was done long before that.


Probes have thrusters to adjust their trajectories.  I'm guessing the Tesla roadster does not.
 
2018-02-07 08:30:42 AM  

Sgygus: jaytkay: Could this really be unplanned? Humans have been aiming planetary probes for 55 years now, and the math was done long before that.

Probes have thrusters to adjust their trajectories.  I'm guessing the Tesla roadster does not.


It has valet mode.
 
2018-02-07 08:30:50 AM  
That's a pretty big oopsie. Or not an oopsie at all. Either way.
 
2018-02-07 08:32:39 AM  
...I'm looking at it this way:  we could do a whole lot worse than the aliens encountering a red sports car with a copy of THGTTG in the glovebox and Bowie on an endless loop over the sound system.
 
2018-02-07 08:33:33 AM  
So now instead of V'ger, we going to get T'la?
 
2018-02-07 08:41:25 AM  
LOL

img.fark.netView Full Size
 
2018-02-07 08:42:55 AM  

jaytkay: Could this really be unplanned? Humans have been aiming planetary probes for 55 years now, and the math was done long before that.


This is a test flight of a previously unproven rocket system. Instead of a precise burn that was well within the performance envelope of the second stage, they just let it burn as long as it could so they could figure out exactly how much headroom they have under real world conditions.
 
2018-02-07 08:44:08 AM  

GRCooper: Guybird: So in the years to come our children will look to the stars to observe "Elon's comet" or the "Tesla Roadster showers"?

[img.fark.net image 425x222]


I assume I wasn't alone in watching Heavy Metal, last night.
 
2018-02-07 08:45:20 AM  
"Accident" or good PR move?
 
2018-02-07 08:51:36 AM  
So....its not a success?
 
2018-02-07 08:51:53 AM  

edmo: "Accident" or good PR move?


It is a test flight. Mars orbit was the minimum they were shooting for, and the Falcon Heavy exceeded expectation when they intentionally pushed it to the edge of its performance envelope to see how far it would go.
 
2018-02-07 08:56:06 AM  
It was cool to see rockets land like they're supposed to.

Is it playing Space Oddity or Life on Mars? Cuz I've heard both.

/suspect some news folk don't know the title of oddity
 
2018-02-07 09:04:11 AM  

AtlanticCoast63: ...I'm looking at it this way:  we could do a whole lot worse than the aliens encountering a red sports car with a copy of THGTTG in the glovebox and Bowie on an endless loop over the sound system.


Unless they come to kill us because they couldn't turn the damn thing off.
 
2018-02-07 09:06:03 AM  

Mad_Radhu: edmo: "Accident" or good PR move?

It is a test flight. Mars orbit was the minimum they were shooting for, and the Falcon Heavy exceeded expectation when they intentionally pushed it to the edge of its performance envelope to see how far it would go.


This might explain why Californianites reported two puffs. Maybe the rocket was first fired for the amount of time needed to reach Mars, then they turned it back on to check the limit.
 
2018-02-07 09:06:40 AM  

jaytkay: Could this really be unplanned? Humans have been aiming planetary probes for 55 years now, and the math was done long before that.


img.fark.netView Full Size

/"When the Earth starts to... settle, God throws a stone at it. And believe me, He's winding up."
//No, I don't think Elon is an evil master villain.
///But sometimes I wish he was.
 
2018-02-07 09:08:10 AM  

Parthenogenetic: LOL

[img.fark.net image 631x285]


Hank Scorpio's got a pretty good sense of humour.
 
2018-02-07 09:24:05 AM  

WelldeadLink: Mad_Radhu: edmo: "Accident" or good PR move?

It is a test flight. Mars orbit was the minimum they were shooting for, and the Falcon Heavy exceeded expectation when they intentionally pushed it to the edge of its performance envelope to see how far it would go.

This might explain why Californianites reported two puffs. Maybe the rocket was first fired for the amount of time needed to reach Mars, then they turned it back on to check the limit.


Could be. The reason it was orbiting the Earth for as long as it did was to test a normal flight profile like they would use for the Air Force and then see if they could restart the engine a third time for the final burn away from Earh, so maybe they added one last restart to see how far they could push it?

A normal launch would be the equivalent of a 707 flying from New York to London. This  flight was like Tex Johnson taking the 707 prototype out over Lake Washington to see if he can make that farker do a barrel roll.
 
2018-02-07 09:25:39 AM  
I can't believe that it took 8 comments for the Heavy Metal reference. Done in 8.
 
2018-02-07 09:26:43 AM  

WelldeadLink: Mad_Radhu: edmo: "Accident" or good PR move?

It is a test flight. Mars orbit was the minimum they were shooting for, and the Falcon Heavy exceeded expectation when they intentionally pushed it to the edge of its performance envelope to see how far it would go.

This might explain why Californianites reported two puffs. Maybe the rocket was first fired for the amount of time needed to reach Mars, then they turned it back on to check the limit.


There were two extra firings: the first extended the orbit to 7000 km. There is a class of highly elliptical orbits that are used to "hover" a satellite over a territory. Three satellites in the same orbit can give you the same coverage as a geostationary orbit.
 
2018-02-07 09:33:57 AM  
Yay. More junk in space that didn't need to be there.

So wonderful.
 
2018-02-07 09:41:10 AM  

question_dj: Yay. More junk in space that didn't need to be there.

So wonderful.


Once you get out of LEO, space is really big and empty. Bigger than the biggest thing ever and then some. Much bigger than that in fact, really amazingly immense, a totally stunning size, real 'wow, that's big', time. Infinity is just so big that by comparison, bigness itself looks really titchy. Gigantic multiplied by colossal multiplied by staggeringly huge is the sort of concept we're trying to get across here.
 
2018-02-07 09:42:19 AM  

question_dj: Yay. More junk in space that didn't need to be there.

So wonderful.


Space junk is only a problem when it is in Earth orbit because of the danger to satellites and other spacecraft. Where this Tesla is going it's not an issue; this car is barely a microscopic speck of dust in an endless sea of emptiness. Space is really big you know.
 
2018-02-07 09:43:56 AM  

question_dj: Yay. More junk in space that didn't need to be there.

So wonderful.


It's ok there's plenty of ... space.
 
2018-02-07 10:00:38 AM  
This seques to Dude Where's My Car is much better than the original.
 
2018-02-07 10:13:44 AM  
ipadforums.netView Full Size
 
2018-02-07 10:21:21 AM  
Elon's gonna capture it on the next orbit then we'll get this on Craigslist:

For Sale: 2008 Cherry Red Tesla Roadster. 1 owner. May have slight radiation, micro-abrasions. Only 500M miles on the odometer. Comes with free suit!
 
2018-02-07 10:40:50 AM  

Tr0mBoNe: Yeah, subby. The Expanse is pretty good.


Just finished the seventh book. Damn, it's just getting better. That guy writes a really tight book.
 
2018-02-07 10:51:48 AM  
It brings me no small amount of glee to think that an advanced civilization might find this out there and find the copy of HHGTTG.
I hope they don't get any ideas from the Vogons
 
2018-02-07 11:04:33 AM  

Mad_Radhu: jaytkay: Could this really be unplanned? Humans have been aiming planetary probes for 55 years now, and the math was done long before that.

This is a test flight of a previously unproven rocket system. Instead of a precise burn that was well within the performance envelope of the second stage, they just let it burn as long as it could so they could figure out exactly how much headroom they have under real world conditions.


Yep,

That and most people don't realize just how little fuel the difference between a mars orbital Ap and an asteroid belt Ap is. 95% of people at looking at the picture Elon tweeted out about the car's projected orbit and thinking "holy shiat they way overshot" when in reality its essentially seeing how much farther your car can drive when the fuel gauge has been on E for 5 minutes.
 
2018-02-07 11:04:52 AM  

JohnBigBootay: Tr0mBoNe: Yeah, subby. The Expanse is pretty good.

Just finished the seventh book. Damn, it's just getting better. That guy writes a really tight book.

Guys.

James S. A. Corey is a pseudonym for a pair of collaborators.

/ The books are still awesome
// I have no idea how they're going to film some of this stuff for the TV series
 
2018-02-07 11:07:26 AM  

keldaria: Mad_Radhu: jaytkay: Could this really be unplanned? Humans have been aiming planetary probes for 55 years now, and the math was done long before that.

This is a test flight of a previously unproven rocket system. Instead of a precise burn that was well within the performance envelope of the second stage, they just let it burn as long as it could so they could figure out exactly how much headroom they have under real world conditions.

Yep,

That and most people don't realize just how little fuel the difference between a mars orbital Ap and an asteroid belt Ap is. 95% of people at looking at the picture Elon tweeted out about the car's projected orbit and thinking "holy shiat they way overshot" when in reality its essentially seeing how much farther your car can drive when the fuel gauge has been on E for 5 minutes.


It looks as though they didn't control the burn, they just lit 'er up and sent it flying. To do anything else would have required careful tracking, communication systems, fine course correction systems, etc.
 
2018-02-07 11:13:21 AM  

Russ1642: It looks as though they didn't control the burn, they just lit 'er up and sent it flying. To do anything else would have required careful tracking, communication systems, fine course correction systems, etc.


"Once we're out of Earth orbit we're gonna open her up and really see what this baby can do!"
 
2018-02-07 11:20:49 AM  

BalugaJoe: Sgygus: jaytkay: Could this really be unplanned? Humans have been aiming planetary probes for 55 years now, and the math was done long before that.

Probes have thrusters to adjust their trajectories.  I'm guessing the Tesla roadster does not.

It has valet mode.


But it will take forever for the valet to bring it back when you leave the restaurant.

Hitchhikers Guide - Marvin waits millennia getting depressed
Youtube q4P3pvKmbsg
 
2018-02-07 11:20:57 AM  
It's going to defy insane odds and slam into an alien cruiser and they're going to take it as an act of war and come after us.

A cosmic joke played on those silly little humans.
 
2018-02-07 11:21:12 AM  

Mad_Radhu: edmo: "Accident" or good PR move?

It is a test flight. Mars orbit was the minimum they were shooting for, and the Falcon Heavy exceeded expectation when they intentionally pushed it to the edge of its performance envelope to see how far it would go.


Or their Hohmann transfer orbit calculations were justa bit off...
 
2018-02-07 11:31:34 AM  

AsylumWraith: JohnBigBootay: Tr0mBoNe: Yeah, subby. The Expanse is pretty good.

Just finished the seventh book. Damn, it's just getting better. That guy writes a really tight book.

Guys. James S. A. Corey is a pseudonym for a pair of collaborators.

/ The books are still awesome
// I have no idea how they're going to film some of this stuff for the TV series


I think I read that before. What's crazy to me is the origin of the thing being based on a game. The depth of the details of society, language, etc. is just really really good in my opinion. Some of the best sci fi I've read.
 
2018-02-07 11:36:49 AM  

Russ1642: keldaria: Mad_Radhu: jaytkay: Could this really be unplanned? Humans have been aiming planetary probes for 55 years now, and the math was done long before that.

This is a test flight of a previously unproven rocket system. Instead of a precise burn that was well within the performance envelope of the second stage, they just let it burn as long as it could so they could figure out exactly how much headroom they have under real world conditions.

Yep,

That and most people don't realize just how little fuel the difference between a mars orbital Ap and an asteroid belt Ap is. 95% of people at looking at the picture Elon tweeted out about the car's projected orbit and thinking "holy shiat they way overshot" when in reality its essentially seeing how much farther your car can drive when the fuel gauge has been on E for 5 minutes.

It looks as though they didn't control the burn, they just lit 'er up and sent it flying. To do anything else would have required careful tracking, communication systems, fine course correction systems, etc.


I agree, they probably didn't bother to control the burn beyond timing when to light the engine to ensure the trajectory would be optimal to send it to mars orbit or beyond.. Other than that I think the intent was light the fuse and see how long it burned.
 
2018-02-07 11:41:08 AM  

Mad_Radhu: question_dj: Yay. More junk in space that didn't need to be there.

So wonderful.

Once you get out of LEO, space is really big and empty. Bigger than the biggest thing ever and then some. Much bigger than that in fact, really amazingly immense, a totally stunning size, real 'wow, that's big', time. Infinity is just so big that by comparison, bigness itself looks really titchy. Gigantic multiplied by colossal multiplied by staggeringly huge is the sort of concept we're trying to get across here.


I mean, you may think it's a long way to the chemist's, but that's peanuts compared to space.
 
2018-02-07 11:46:38 AM  

Mad_Radhu: jaytkay: Could this really be unplanned? Humans have been aiming planetary probes for 55 years now, and the math was done long before that.

This is a test flight of a previously unproven rocket system. Instead of a precise burn that was well within the performance envelope of the second stage, they just let it burn as long as it could so they could figure out exactly how much headroom they have under real world conditions.


Well....they should have telemetry of remaining fuel onboard, rate of burn, etc., that would allow them to accurately gauge the maximum capabilities of the rocket.  No need to run it until it's empty, as that's not likely to be the case in any future launch.  Sucking a rocket dry might cause issues with structural strength, engine performance (a bubble in a fuel line might cause a pump to seize), etc.

IMHO, they're creating the performance envelope now, based on the launch data.  Any guidelines prior to launch were just intelligent guesses.  They'll likely set the "MAX" numbers for future launches at 75% of known maximums, to give themselves plenty of leeway in case it's ever needed.
 
2018-02-07 11:47:44 AM  

keldaria: Mad_Radhu: jaytkay: Could this really be unplanned? Humans have been aiming planetary probes for 55 years now, and the math was done long before that.

This is a test flight of a previously unproven rocket system. Instead of a precise burn that was well within the performance envelope of the second stage, they just let it burn as long as it could so they could figure out exactly how much headroom they have under real world conditions.

Yep,

That and most people don't realize just how little fuel the difference between a mars orbital Ap and an asteroid belt Ap is. 95% of people at looking at the picture Elon tweeted out about the car's projected orbit and thinking "holy shiat they way overshot" when in reality its essentially seeing how much farther your car can drive when the fuel gauge has been on E for 5 minutes.


This.  All you have to do is play KSP. Literally leaving the engine lit for half a second longer than planned and you not only missed, you missed by a lot
 
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