Page 2 of 3 FirstFirst 1 2 3 LastLast
Results 16 to 30 of 36

Thread: SpaceX 'StarLink' broadband satellite service the StarLink Train video]

  1. #16
    The Berserker Jammrock's Avatar
    Join Date
    Aug 1999
    Location
    Right behind you.
    Posts
    8,985

    Default

    25 ms, eh. Latency sounds too good to be true. Even for a low orbit link.
    “Inside every sane person there’s a madman struggling to get out”
    –The Light Fantastic, Terry Pratchett

  2. #17
    Moderator Dr Mordrid's Avatar
    Join Date
    Apr 2001
    Location
    Westland, MI
    Posts
    25,670

    Default

    Quote Originally Posted by Jammrock View Post
    25 ms, eh. Latency sounds too good to be true. Even for a low orbit link.
    That's for the 1,100 km orbits. For the lower LEO and VLEO satellites it could be as low as 15ms to the overhead birds.

    This using the consumer or business rooftop phased array terminal, which talks directly to the constellation. Slower if the last mile is wired, optical or 5G.

    The first batch ("dozens") of the 75 bird test constellation goes up May 15. Once they confirm the up/downlinks to ground stations work then the full constellation deployment starts later this year - up to 6 launches in 2019. The full constellations will route traffic around the world using laser sat-2-sat links - a laser mesh.

    1,500+ satellites in the first flock, 4,409 in the LEO segment and 7,518 in the VLEO segment.
    Dr. Mordrid
    ----------------------------
    An elephant is a mouse built to government specifications.

    I carry a gun because I can't throw a rock 1,250 fps

  3. #18
    Moderator Dr Mordrid's Avatar
    Join Date
    Apr 2001
    Location
    Westland, MI
    Posts
    25,670

    Default

    StarLink

    Date: May 15

    Time: 22:30 EDT (02:30 UTC on the 16th)

    Recovery: ASDS Of Course I Still Love You at 621km downrange, indicating a quite massive payload.
    Dr. Mordrid
    ----------------------------
    An elephant is a mouse built to government specifications.

    I carry a gun because I can't throw a rock 1,250 fps

  4. #19
    Moderator Dr Mordrid's Avatar
    Join Date
    Apr 2001
    Location
    Westland, MI
    Posts
    25,670

    Default

    60 satellites on a cob!!

    So, 60 x 6 launches this year = up to 360 birds. Only need 800 to start service.

    Elon Musk ✓ @elonmusk
    First 60 @SpaceX Starlink satellites loaded into Falcon fairing. Tight fit.
    https://t.co/gZq8gHg9uK

    https://twitter.com/elonmusk/status/1127388838362378241

    Some fancy origami there...

    IMG_20190511_215026.jpg

    IMG_20190511_215032.jpg

    Elon Musk ✔ @elonmusk
    Replying to @elonmusk
    These are production design, unlike our earlier Tintin demo sats
    |
    Elon Musk ✔ @elonmusk
    Much will likely go wrong on 1st mission. Also, 6 more launches of 60 sats needed for minor coverage, 12 for moderate.
    |
    Pranay Pathole @PPathole
    Replying to @elonmusk @SpaceX
    Holy crap that's a lot of satellites, it almost looks flat-packed! I wonder what the dispenser mechanism for that looks like?
    |
    Elon Musk ✔ @elonmusk
    It is flat-packed. No dispenser.
    11:02 PM - May 11, 2019
    Last edited by Dr Mordrid; 11th May 2019 at 20:48.
    Dr. Mordrid
    ----------------------------
    An elephant is a mouse built to government specifications.

    I carry a gun because I can't throw a rock 1,250 fps

  5. #20
    Moderator Dr Mordrid's Avatar
    Join Date
    Apr 2001
    Location
    Westland, MI
    Posts
    25,670

    Default

    Game ON,

    SpaceX ✔ @SpaceX
    Static fire test of Falcon 9 complete targeting May 15 for launch of 60 Starlink satellites from Pad 40 in Florida
    11:06 PM - May 13, 2019

    https://twitter.com/SpaceX/status/1128134469972447232
    Dr. Mordrid
    ----------------------------
    An elephant is a mouse built to government specifications.

    I carry a gun because I can't throw a rock 1,250 fps

  6. #21
    Moderator Dr Mordrid's Avatar
    Join Date
    Apr 2001
    Location
    Westland, MI
    Posts
    25,670

    Default

    Press kit

    http://www.spacex.com/sites/spacex/f..._press_kit.pdf

    With a flat-panel design featuring multiple high-throughput antennas and a single solar array, each Starlink satellite weighs approximately 227kg, allowing SpaceX to maximize mass production and take full advantage of Falcon 9's launch capabilities. To adjust position on orbit, maintain intended altitude, and deorbit, Starlink satellites feature Hall thrusters powered by krypton. Designed and built upon the heritage of Dragon, each spacecraft is equipped with a Startracker navigation system that allows SpaceX to point the satellites with precision. Importantly, Starlink satellites are capable of tracking on-orbit debris and autonomously avoiding collision. Additionally, 95 percent of all components of this design will quickly burn in Earth's atmosphere at the end of each satellite's lifecycle-exceeding all current safety standards-with future iterative designs moving to complete disintegration
    Last edited by Dr Mordrid; 15th May 2019 at 02:27.
    Dr. Mordrid
    ----------------------------
    An elephant is a mouse built to government specifications.

    I carry a gun because I can't throw a rock 1,250 fps

  7. #22
    Moderator Dr Mordrid's Avatar
    Join Date
    Apr 2001
    Location
    Westland, MI
    Posts
    25,670

    Default



    Dr. Mordrid
    ----------------------------
    An elephant is a mouse built to government specifications.

    I carry a gun because I can't throw a rock 1,250 fps

  8. #23
    Moderator Dr Mordrid's Avatar
    Join Date
    Apr 2001
    Location
    Westland, MI
    Posts
    25,670

    Default

    EIGHTEEN.AND.A.HALF.FRACKING.TONNES?!?

    Elon Musk ✔ @elonmusk
    Starlink mission will be heaviest @SpaceX payload ever at 18.5 tons. If all goes well, each launch of 60 satellites will generate more power than Space Station & deliver 1 terabit of bandwidth to Earth.
    9:26 PM - May 15, 2019

    https://twitter.com/elonmusk/status/1128834111878193155
    Dr. Mordrid
    ----------------------------
    An elephant is a mouse built to government specifications.

    I carry a gun because I can't throw a rock 1,250 fps

  9. #24
    Moderator Dr Mordrid's Avatar
    Join Date
    Apr 2001
    Location
    Westland, MI
    Posts
    25,670

    Default

    Moved to 2300 EDT (03:00 UTC)
    Dr. Mordrid
    ----------------------------
    An elephant is a mouse built to government specifications.

    I carry a gun because I can't throw a rock 1,250 fps

  10. #25
    Moderator Dr Mordrid's Avatar
    Join Date
    Apr 2001
    Location
    Westland, MI
    Posts
    25,670

    Default

    Scrubbed; upper level winds. Trying again tomorrow.
    Dr. Mordrid
    ----------------------------
    An elephant is a mouse built to government specifications.

    I carry a gun because I can't throw a rock 1,250 fps

  11. #26
    Moderator Dr Mordrid's Avatar
    Join Date
    Apr 2001
    Location
    Westland, MI
    Posts
    25,670

    Default

    Thursdays webcast

    Dr. Mordrid
    ----------------------------
    An elephant is a mouse built to government specifications.

    I carry a gun because I can't throw a rock 1,250 fps

  12. #27
    Moderator Dr Mordrid's Avatar
    Join Date
    Apr 2001
    Location
    Westland, MI
    Posts
    25,670

    Default

    SpaceX ✓ @SpaceX
    Starlink and Falcon 9 are looking good, and winds are better for tonights launch. The 1.5 hour launch window opens at 10:30 p.m. EDT

    https://twitter.com/SpaceX/status/1129125902174941184
    Dr. Mordrid
    ----------------------------
    An elephant is a mouse built to government specifications.

    I carry a gun because I can't throw a rock 1,250 fps

  13. #28
    Moderator Dr Mordrid's Avatar
    Join Date
    Apr 2001
    Location
    Westland, MI
    Posts
    25,670

    Default

    /sigh

    SpaceX ✔ @SpaceX
    Standing down to update satellite software and triple-check everything again. Always want to do everything we can on the ground to maximize mission success, next launch opportunity in about a week.
    8:26 PM - May 16, 2019
    Dr. Mordrid
    ----------------------------
    An elephant is a mouse built to government specifications.

    I carry a gun because I can't throw a rock 1,250 fps

  14. #29
    Moderator Dr Mordrid's Avatar
    Join Date
    Apr 2001
    Location
    Westland, MI
    Posts
    25,670

    Default

    Likely similar times to the first tries

    May 23, 22:30 Eastern (May 24, 02:30 UTC)

    SpaceX ✔ @SpaceX
    Now targeting May 23 for launch of Starlink from Pad 40 in Florida
    12:47 PM - May 20, 2019

    https://twitter.com/SpaceX/status/1130500331698364418
    Last edited by Dr Mordrid; 20th May 2019 at 17:10.
    Dr. Mordrid
    ----------------------------
    An elephant is a mouse built to government specifications.

    I carry a gun because I can't throw a rock 1,250 fps

  15. #30
    Moderator Dr Mordrid's Avatar
    Join Date
    Apr 2001
    Location
    Westland, MI
    Posts
    25,670

    Default

    Dr. Mordrid
    ----------------------------
    An elephant is a mouse built to government specifications.

    I carry a gun because I can't throw a rock 1,250 fps

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •