• Orbital Insertion Burn a Success, Webb Arrives at L2

    From Wilfred van Velzen@2:280/464 to All on Tue Jan 25 18:54:09 2022
    * Originally in ASTRONOMY
    * Crossposted in ASTRONET

    Hi All,

    Today, at 2 p.m. EST, Webb fired its onboard thrusters for nearly five minutes (297 seconds) to complete the final postlaunch course correction to Webb's trajectory. This mid-course correction burn inserted Webb toward its final orbit around the second Sun-Earth Lagrange point, or L2, nearly 1 million miles away from the Earth.

    The final mid-course burn added only about 3.6 miles per hour (1.6 meters per second) - a mere walking pace - to Webb's speed, which was all that was needed to send it to its preferred "halo" orbit around the L2 point.

    Read more here:

    https://blogs.nasa.gov/webb/2022/01/24/orbital-insertion-burn-a-success-webb-arrives-at-l2/
    https://tinyurl.com/djpzb6xu

    Bye, Wilfred.

    --- FMail-lnx64 2.1.0.18-B20170815
    * Origin: FMail development HQ (2:280/464)
  • From August Abolins@1:396/45.29 to Wilfred van Velzen on Wed Jan 26 04:13:00 2022
    Hello Wilfred van Velzen!

    ** On Tuesday 25.01.22 - 18:54, Wilfred van Velzen wrote to All:

    The final mid-course burn added only about 3.6 miles per
    hour (1.6 meters per second) - a mere walking pace - to
    Webb's speed, which was all that was needed to send it to
    its preferred "halo" orbit around the L2 point.

    I hear that it will be June before the first images will be
    taken and available.


    --
    ../|ug

    --- OpenXP 5.0.51
    * Origin: (1:396/45.29)
  • From Wilfred van Velzen@2:280/464 to August Abolins on Wed Jan 26 10:25:17 2022
    * Originally in ASTRONOMY
    * Crossposted in ASTRONET

    Hi August,

    On 2022-01-26 04:13:00, you wrote to me:

    The final mid-course burn added only about 3.6 miles per
    hour (1.6 meters per second) - a mere walking pace - to
    Webb's speed, which was all that was needed to send it to
    its preferred "halo" orbit around the L2 point.

    I hear that it will be June before the first images will be
    taken and available.

    Yes it will take about half a year for first the cooling down, and afterwards the perfect allignment of all the mirrors... We're talking about nanometer precision here...

    Bye, Wilfred.

    --- FMail-lnx64 2.1.0.18-B20170815
    * Origin: FMail development HQ (2:280/464)