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johnfosteruk

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Posts posted by johnfosteruk

  1. 23 hours ago, Duke2k said:

    Hi all

    I have been trying to simulate lunar shadows using elevation data but all I get is the terminator in black. How do you add contour lines and elevation data and also where do you find the files?

    I am using windows 8.1

    A group of us are hoping to image the Lunar X next week but we are stuck.

    Thanks

    This page shows you how to do simulations. But be quick, as demo performer says, the site is being dropped soon. 

  2. 4 hours ago, Stub Mandrel said:

    They flip, re-ignite the motor and fly back where they came.

    As seen here in this uninterrupted footage from somebody on the ground with an LX200 and some nice tracking software. It's an incredible feat. 

    The little detail (from the press conference) that stood out for me was how they had to land them not quite simultaneously to avoid confusing the radar.

     

    • Like 3
    • Thanks 3
  3. 3 minutes ago, SilverAstro said:

    and the BBC news channel has just shown a clip of 'it' < in the story line, landing back on ship :( 

    That was animated footage by the look of it. (edit - Just noticed it actually says animation)

    They also have factual errors "ignited all 27 of its engines at once" 

    No it didn't :)
     

     

    • Like 1
  4. Several journos reporting reporting on twitter the centre core didn't make it. Apparently there was a press conference at approx 6pm EST - 23:00 GMT.

    I'm sure there will be videos and explanations later.

    Still, an amazing achievement.

    • Like 1
  5. 1 minute ago, Stu said:

    I suppose if it wiped out the comms from the drone ship then they might not have images to show yet?

    That's what I mean, they'll have had a fireball to deal with potentially, then possibly a search for the video gear and then waiting to get it back to land. The drone ship was about 300km down range I believe.

    • Like 1
  6. 1 minute ago, SilverAstro said:

    So has this car got an electric ion thruster for max speed transfer to Mars,

    or will it be ballistic, hohmann transfer, or  other ? we need to know these details :D

    all I see so far is plans for two apogee boosts (one executed already, I think ? )

    I thort I read Hohmann transfer somewhere :)

     

    • Thanks 1
  7. 7 minutes ago, SilverAstro said:

    Nope, new advertising slogan "All the way to Mars on one charge "  :D

    I'll be saddened if they know the centre core is lost and are not yet telling us, that would be too like memories of the Soviet era :(

    They'll tell us I'm sure, they'll probably wait until recovery of video from the drone ship.

    Meanwhile I'm happy to look at views like this for a while :)

     

    Screen Shot 2018-02-06 at 22.10.10.png

    • Like 1
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