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Starship's Third Flight Test [video]

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Re: Starship's Third Flight Test [video]

#91

It's in orbit! ( "...and we have a callout for nominal orbit insertion..." ) edit: Not actually in orbit! This is a suborbital flight. Mea culpa

Technically its suborbital

It's at 26000 km/h which sufficient for orbital velocity. It looks like it's in an elliptical orbit. I guess we'll see soon if they need to do a de-orbit burn, or if the orbit just intersects the atmosphere and they use atmospheric braking?

Re: Starship's Third Flight Test [video]

#92

Earlier quoted context omitted.

Technically its suborbital

Isn't orbit above 125 miles (200km)?

Orbit is mostly about speed, not about height. Going straight up and down doesn't count, even if you pass the height that some orbital vehicles attain.

This vehicle is actually going orbital speed, but not quite orbital height (or rather, it's in an "orbit" that has a very eccentric elliptical shape that would cause it to hit the atmosphere on its way back around; it'd be well above a typical orbital height at apogee, though).

Re: Starship's Third Flight Test [video]

#93
post #87
post #81

Earlier quoted context omitted.

Twitter is awash with garbage too, likely even worse. Every major account, without exception, has multiple fake clones (often many created per day) running around trying to steal clicks and occasionally phish users. The Internet is just hard. You're just saying that the Twitter official account is official. No reason you can't have an Official Account anywhere else, SpaceX just doesn't.

when you search spacex on x, you are presented the official account first. when i searched spacex on multiple youtube apps this morning, i couldn't even find the official spacex account after going through pages of menus.

This is what shows up for me: https://www.youtube.com/spacex

Re: Starship's Third Flight Test [video]

#94

Earlier quoted context omitted.

Technically its suborbital

It's at 26000 km/h which sufficient for orbital velocity. It looks like it's in an elliptical orbit. I guess we'll see soon if they need to do a de-orbit burn, or if the orbit just intersects the atmosphere and they use atmospheric braking?

I did the math. So, the minimal orbit at 180 km, the one that grazes the earth's surface at its perigee, is about 7.75 km/s or 27,900 kph. The other commenters are right: it was never technically orbital.

edit:

    (let* ((μ 398600.0)     ;; km^3/s^2
           (r 6371.0)       ;; km
           (peri (+ r 0.0))
           (apo (+ r 180.0))
           (a (* 0.5 (+ peri apo))))
      (sqrt (* μ
               (- (/ 2.0 apo)
                  (/ 1.0 a)))))
    ;; 7.745844595118488

Re: Starship's Third Flight Test [video]

#95

Earlier quoted context omitted.

It's at 26000 km/h which sufficient for orbital velocity. It looks like it's in an elliptical orbit. I guess we'll see soon if they need to do a de-orbit burn, or if the orbit just intersects the atmosphere and they use atmospheric braking?

I did the math. So, the minimal orbit at 180 km, the one that grazes the earth's surface at its perigee, is about 7.75 km/s or 27,900 kph. The other commenters are right: it was never technically orbital. edit: (let* ((μ 398600.0) ;; km^3/s^2 (r 6371.0) ;; km (peri (+ r 0.0)) (apo (+ r 180.0)) (a (* 0.5 (+ peri apo)))) (sqrt (* μ (- (/ 2.0 apo) (/ 1.0 a))))) ;; 7.745844595118488

Thanks! On one of the feeds, it sounds like they didn't want to leave a bunch of debris in orbit if they had an anomaly

Re: Starship's Third Flight Test [video]

#97
post #82
post #52

Hahah, the elevator music while they wait for reentry...

I actually have the stream open in the background, can't believe how happy and calm this music makes me while patching servers :D

If you like that here's a protip: search for bossa nova instrumentals on youtube for soothing tropical background music

Re: Starship's Third Flight Test [video]

#99

T+37: Seems a little turny-aroundy in orbit there and a bit "small-pieces-falling-offy" Still, good job getting it there T+43: seems to be turning around a bit too much for something thats got heat shields on one side and is about to re-enter T+45: flaps moved, maybe that is supposed to get it the right way round, I get it now - it uses the flaps to orient for re-entry T+46: the little bits of debris must be tiles co…

I'm still in awe that I got to watch a reentry live stream just now. I wish I could tell my child self what wonders were in store. Watching humanity progress in real time is amazing.
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