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The title of this post is incorrect. We have to wait a few hours to know if the rocket man has made it to Mars orbit. EDIT: It's not a Mars orbit, its a solar
by Upas 9y ago
The title of this post is incorrect. We have to wait a few hours to know if the rocket man has made it to Mars orbit.
EDIT: It's not a Mars orbit, its a solar orbit that puts it close to Mars at times.
From the linked article:
"If all phases of the flight are successful - and that will not be known until at least 6.5 hours after lift-off - the Tesla and its passenger will be despatched into an elliptical orbit around the Sun that reaches out as far as the Planet Mars."
- oh_sigh 9y ago'made it to mars orbit' is a weird way of saying it too - it will be going out as far as mars is, but it won't be orbiting mars - it will be orbiting the sun.
- pikchurn 9y agoActually, no, once the 2nd stage cuts off the trajectory is mostly fixed and we know what orbit it is in. There are, I believe, two more small burns that will be done to adjust the trajectory, but these are more of an adjustment to what kind of Martian transfer orbit it is in. It already has the hyperbolic velocity to leave Earth's orbit, and enter solar orbit with an apogee at the same distance as Mars. In 6.5 hours SpaceX will have finished everything they wanted to test with this flight I believe, including a number of post-launch checks of various systems and sensors on the payload, and those re-ignition tests of the 2nd stage.
- Klathmon 9y agoUnless I'm mistaken, it's not on a trajectory out of Earth orbit currently. It is in a parking orbit, where it will sit for a few hours and then will reignite and will be set on a trajectory toward "martian orbit". IIRC currently they are testing (or proving depending on how confident they are) that they can have the second stage sit for several hours in space before reignighting.
- teraflop 9y agoI think you're correct. At stage 2 cutoff, they were showing a speed of ~26,000 km/h, which is approximately orbital velocity, not escape velocity.
- Klathmon 9y agoAlthough I'm not fully correct. Mr. Musk just tweeted this: >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. https://twitter.com/elonmusk/status/960988527159795712 https://twitter.com/elonmusk/status/960988527159795712
- rbanffy 9y agoI hope we see more images of Starman, driving his car with the Earth shrinking behind him.
- bythe4mile 9y agoHere you go. A live stream of Starman https://www.youtube.com/watch?v=aBr2kKAHN6M&feature=youtu.be https://www.youtube.com/watch?v=aBr2kKAHN6M&feature=youtu.be