InSight mission to study deep beneath the Martian surface, lands 26 Nov 2018

Discussion in 'science, nature and environment' started by editor, Apr 25, 2018.

  1. editor

    editor Forked with electrons

    [​IMG]

    Looking forward to this one!

    The first-ever mission to study what's under the Martian surface begins May 5 | TechRadar
     
    S☼I and Jonti like this.
  2. Limejuice

    Limejuice Well-Known Member

    Rocket's away.

     
    editor, fishfinger and S☼I like this.
  3. editor

    editor Forked with electrons

    So far so good...

    NASA's InSight Mars Lander Fires Up Its Engines in Space for 1st Time
     
    NoXion likes this.
  4. editor

    editor Forked with electrons

    A month to go!

    [​IMG]

    1 Month to Mars! NASA's InSight Lander Nearing Red Planet Touchdown
     
    weltweit, Signal 11 and Limejuice like this.
  5. Limejuice

    Limejuice Well-Known Member

    I'll be getting beer and snacks in for this landing.

    Parachute and retro rockets!

    :thumbs:
     
    weltweit and editor like this.
  6. editor

    editor Forked with electrons

    Getting closer! Boy, is it tricky to land.

     
    weltweit and Wookey like this.
  7. 2hats

    2hats

    The main entry sequence starts around 1940UTC with landing scheduled to be about 1954UTC on Monday 26 November (Earth receive time given; one way light time is around 8min 9sec). An X-band beacon, indicating successful landing on the surface, should be heard around 2001UTC. A landing image might be available 10-20 minutes after landing (if various conditions are met, otherwise such an image may be available several hours later).

    Note timings are based on mission planning over the summer and will vary (to some degree) on the day due to prevailing martian atmospheric conditions.
     
  8. editor

    editor Forked with electrons

    Here's where to watch the landing online

    NASA Is Landing on Mars Soon! Here's How to Watch the InSight Excitement.
     
    Limejuice likes this.
  9. editor

    editor Forked with electrons

    Come on InSight! I'm rooting for you!

    [​IMG]


    For NASA's InSight Mars Lander, All Systems Are Go for Monday Touchdown
     
  10. HAL9000

    HAL9000 Lasting Damage

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  11. 2hats

    2hats

    Navigation team indicates latest estimate of atmospheric entry time is 19:42:27UTC. Insight is now well inside both Mars' Hill Sphere and Sphere of Influence.
     
    Pickman's model likes this.
  12. editor

    editor Forked with electrons

    I so hope this survives the tricky landing process. Come on InSight!
     
  13. editor

    editor Forked with electrons

    existentialist likes this.
  14. 2hats

    2hats

    TCM-6 performed overnight to fine tune the landing ellipse and current atmospheric entry time now revised to 19:47:00UTC.

    e2a: Navigation indicates InSight (and the companion nanosat MarCO-B) will pass within about 2000km of Mars’ moon Phobos this evening around 1910UTC.
    insight_current.png
    Currently just over 41000km from Mars.
     
    Last edited: Nov 27, 2018
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  15. Limejuice

    Limejuice Well-Known Member

    Okay: Nasa coverage in another tab.

    Beer: first one open.

    Snacks: on standby.

    *ready*

    :thumbs:
     
    Wookey and editor like this.
  16. 2hats

    2hats

    Obligatory, frivolous, vaguely mission related post to pad the time until the ride down:
     
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  17. editor

    editor Forked with electrons

    What's the expected time for a notification of a (hopefully) successful touch down?
     
  18. 2hats

    2hats

    InSight is starting to feel the tug of Mars now and beginning to accelerate as it plunges towards the top of the Martian atmosphere (currently less than 2000km above the surface). Entry interface now expected at 19:46:39UTC (all times Earth receive time unless stated; one way light time is 8m7s).

    A hint of a successful touch down might be determined in (near) ‘real time’ if radio telescopes on Earth are able to pick up the low gain UHF carrier tones from InSight (deductions about the state of the lander will be made on the back of the Doppler characteristics of that signal but no in situ data recorded by sensors on the spacecraft itself will be decoded). The accompanying MarCO nanosats trailing the lander might (if they work - they are experimental) relay the UHF data from the lander itself almost immediately. There might be a delay though until a stronger high gain X band signal is broadcast about 7 minutes after the landing (this signal is strong enough to convey actual data directly to Earth) - this is the signal engineers are looking for as it will indicate the lander has passed its health self-check. Then they will have to wait a few more hours to get confirmation of the successful solar array deploy (which physically occurs 16-32 minutes after landing) which is the final key point of the landing phase - only then will the lander be ready for its science mission.
     
    Last edited: Nov 27, 2018
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  19. 2hats

    2hats

    insight-t27m.png
    So to re-iterate: entry at 1947UT, landing 1953UT, first X band health check 2001UT, earliest possible image 2005UT (though the dust cap will still be on - it isn’t ejected until after solar array deploy is completed, when a second clearer shot will be taken).
     
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  20. 2hats

    2hats

    The nanosats (MarCO-A, MarCO-B) are both healthy so should be in a position to perform bent-pipe comms for the lander (relay data in ‘real time’).
     
    Last edited: Nov 27, 2018
  21. 2hats

    2hats

    Cruise stage separation next up in about 1 minute. The lander will perform a rotational avoidance manoeuvre to avoid a collision on the way down (the cruise stage will also enter the atmosphere of Mars).
     
  22. 2hats

    2hats

    UHF carrier detected. MarCO bent pipe carrier locks.

    ie all comms are up
     
    Last edited: Nov 27, 2018
  23. 2hats

    2hats

    Cruise stage separation confirmed.
     
  24. 2hats

    2hats

    Entry turn completed.
     
    MrSki likes this.
  25. Mumbles274

    Mumbles274 running from law and the press and the parents

    BBC has a live feed.of mission control
     
  26. 2hats

    2hats

  27. 2hats

    2hats

    90 seconds to entry.
     
  28. Mumbles274

    Mumbles274 running from law and the press and the parents

    Well on facebook. Not sure about the website version
     
  29. 2hats

    2hats

    Nanosat telemetry flowing.
     
  30. Limejuice

    Limejuice Well-Known Member

    Huzzah for plucky cube-sats!
     

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