SpaceX ready to launch again.

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moomin
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Message 1917358 - Posted: 6 Feb 2018, 22:19:39 UTC - in response to Message 1917355.  

I've been watching that live on TV...

Me too.
Reminds me of the good old days and the Gemini and Apollo missions :)
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Message 1917373 - Posted: 6 Feb 2018, 23:32:55 UTC

According to what I've read the payload is bound for Mars. The payload being Musk's own Tesla sports car. It seems to me that even though there was a high probability of a launch failure there should have been a minimal scientific payload.
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Message 1917375 - Posted: 6 Feb 2018, 23:41:28 UTC

I watched it live and still want to know did the 3rd part land safely at the Sea Platform?
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Message 1917377 - Posted: 6 Feb 2018, 23:48:14 UTC - in response to Message 1917373.  
Last modified: 6 Feb 2018, 23:48:28 UTC

According to what I've read the payload is bound for Mars. The payload being Musk's own Tesla sports car. It seems to me that even though there was a high probability of a launch failure there should have been a minimal scientific payload.

It isn't going anywhere near Mars. It is going into an elliptical orbit between Earth and Mars. Can't get it near the planet, it hasn't been sterilized.
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Message 1917380 - Posted: 7 Feb 2018, 0:03:11 UTC - in response to Message 1917375.  

I watched it live and still want to know did the 3rd part land safely at the Sea Platform?

Apparently it will not land on earth.
https://twitter.com/elonmusk/status/96098852715979571
Upper stage restart nominal, apogee raised to 7000 km. Will spend 5 hours getting zapped in Van Allen belts & then attempt final burn for Mars.

Live view of Starman
https://youtu.be/aBr2kKAHN6M
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Message 1917403 - Posted: 7 Feb 2018, 3:01:39 UTC

Two of the three main engines on the core rocket failed to relight causing it to crash in the sea. Even so two out of three makes additional missions much cheaper. Gary I never said they were planning to land on Mars. Please quit putting words in my posts.
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Message 1917421 - Posted: 7 Feb 2018, 5:41:57 UTC
Last modified: 7 Feb 2018, 5:42:17 UTC

Greatest engineering feat, at least in aerospace, I'll have seen played live for some time to come, until the next line of rockets SpaceX comes up with makes its appearance.
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Message 1917423 - Posted: 7 Feb 2018, 6:37:02 UTC

If Elon really wanted life to imitate art, he'd have sent up a '60 Corvette C instead of the Tesla. Heavy metal '81 and "Soft landing".......
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Message 1917502 - Posted: 7 Feb 2018, 20:11:36 UTC - in response to Message 1917403.  

Two of the three main engines on the core rocket failed to relight causing it to crash in the sea. Even so two out of three makes additional missions much cheaper. Gary I never said they were planning to land on Mars. Please quit putting words in my posts.
Orbital dynamics are funny, Elon put the words in your mouth anyway. He isn't even claiming that the orbit he sent it on has the same inclination as Mars. As such it might never get much closer than the Earth does, at least in the next 10,000 years. What Elon should have said was the aphelion distance or the car would be within the range of the perihelion and aphelion distance of Mars' orbit.

To actually get near Mars to have to arrange your rocket to arrive at its orbit when it is at that spot in its orbit. From earth that is an about six month trip to get from the Earth's orbit out to Mars' orbit. You want to time your launch so that you arrive near perihelion to save fuel. As Mars takes about 2 years an orbit, launch windows open about every two years.
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Message 1917673 - Posted: 8 Feb 2018, 15:52:40 UTC
Last modified: 8 Feb 2018, 15:54:34 UTC

It seems now that the Tesla is going to join the Asteroid belt. Inter Martem et Jovem unam Tesla interposui (with apologies to Johannes Kepler).
Tullio
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Message 1918319 - Posted: 11 Feb 2018, 20:31:17 UTC - in response to Message 1917673.  

The cruise to the asteroid belt is now considered to be an exaggeration. After recalculating the trajectory they are again estimating that Falcon Heavy capsule will reach it's apogee somewhere near the orbit of Mars but nowhere near the planet itself.
Bob DeWoody

My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events.
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Message 1918323 - Posted: 11 Feb 2018, 20:38:57 UTC

Ok here's some more info.

Elon Musk's Tesla Roadster

Cheers.
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Message 1918469 - Posted: 12 Feb 2018, 11:39:31 UTC - in response to Message 1918323.  

NASA is also tracking the car.
ET Phone Home
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Message 1920544 - Posted: 22 Feb 2018, 23:31:20 UTC

SpaceX Completes Successful Launch, Narrowly Misses Catching $6 Million Nose Cone.

SpaceX successfully launched its Falcon 9 rocket Thursday morning.

But the hard part came next: trying to catch the rocket's falling nose cone with a big net on a ship in the ocean.
Cheers.
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Message 1920590 - Posted: 23 Feb 2018, 2:15:45 UTC - in response to Message 1920544.  

As fast as it was falling, I don't see how that net or that boat could have survived the impact if they caught it.
The mind is a weird and mysterious place
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Message 1920788 - Posted: 24 Feb 2018, 1:46:48 UTC - in response to Message 1920590.  
Last modified: 24 Feb 2018, 1:53:29 UTC

If you mean the Mach 8 mentioned in the tweet, I think you may have missed the mention of the parachute later on? I know I miss stuff when I skim through stuff
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Message 1920796 - Posted: 24 Feb 2018, 2:29:28 UTC
Last modified: 24 Feb 2018, 2:35:26 UTC

Going by this I'd have my doubts whether that giant mitt would catch it safely without shredding it..!

"Going to try to catch the giant fairing (nosecone) of Falcon 9 as it falls back from space at about eight times the speed of sound," Musk wrote on Instagram. "It has onboard thrusters and a guidance system to bring it through the atmosphere intact, then releases a parafoil and our ship, named Mr. Steven, with basically a giant catcher's mitt welded on, tries to catch it."

My thoughts are parachute it down softly onto the ocean and retrieve it..
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Message 1920804 - Posted: 24 Feb 2018, 3:39:59 UTC
Last modified: 24 Feb 2018, 3:41:43 UTC

Speed by the time of catch should be low as the parafoil adjusts down to a stall speed, but a faster and more maneuverable ship with outriggers and a bigger net maybe needed (a few inflatable floats wouldn't hurt either in the cone) or they'll need adjust/improve the navigation software (or maybe a bit of both).

It's a bit like that they can land those reusable rockets on land fine, but they have problems doing the same on floating platforms out at sea still.

Cheers.
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Message 1920882 - Posted: 24 Feb 2018, 15:56:19 UTC - in response to Message 1920796.  

Going by this I'd have my doubts whether that giant mitt would catch it safely without shredding it..!

"Going to try to catch the giant fairing (nosecone) of Falcon 9 as it falls back from space at about eight times the speed of sound," Musk wrote on Instagram. "It has onboard thrusters and a guidance system to bring it through the atmosphere intact, then releases a parafoil and our ship, named Mr. Steven, with basically a giant catcher's mitt welded on, tries to catch it."

My thoughts are parachute it down softly onto the ocean and retrieve it..

Look up "parafoil"
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Message 1920884 - Posted: 24 Feb 2018, 16:22:36 UTC - in response to Message 1920882.  

Is it similar to what lowered Curiosity onto the surface of Mars?
The mind is a weird and mysterious place
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Message boards : Science (non-SETI) : SpaceX ready to launch again.


 
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