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astrokiwi's profile
Michele Bannister
Michele Bannister
Michele Bannister
@astrokiwi

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Michele Bannister

@astrokiwi

Planetary astronomer @UCNZ, poet, hunter of new & strange worlds. Connoisseur of fuzzy dots of light. Asteroid (10463). she/her

Ōtautahi
mtbannister.github.io
Joined February 2009

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    1. Michele Bannister‏ @astrokiwi 11 Sep 2019
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      Orbits and when to get excited: a thread

      8 replies 60 retweets 156 likes
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    2. Michele Bannister‏ @astrokiwi 11 Sep 2019
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      There's a lot of excitement in the last day or so about a candidate near-Earth asteroid that has the temporary designation #gb00234. This object is currently listed on the Possible Comet Confirmation Page https://minorplanetcenter.net/iau/NEO/pccp_tabular.html …

      1 reply 11 retweets 42 likes
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    3. Michele Bannister‏ @astrokiwi 11 Sep 2019
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      Entirely routinely and going on all the time, new moving things in the sky get found and added to the Near-Earth Object Confirmation Page of @MinorPlanetCtr https://minorplanetcenter.net/iau/NEO/toconfirm_tabular.html …

      1 reply 2 retweets 17 likes
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    4. Michele Bannister‏ @astrokiwi 11 Sep 2019
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      If they turn out to be a little fuzzy dot, with a cometary coma, they are moved from that list to the Possible Comet Confirmation Page [I'm simplifying a little, but broad-brush]. This step requires More Observations

      1 reply 2 retweets 20 likes
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    5. Michele Bannister‏ @astrokiwi 11 Sep 2019
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      When the orbit is sufficiently well known, @MinorPlanetCtr issues a Minor Planet Electronic Circular. https://minorplanetcenter.net/mpec/RecentMPECs.html … This step requires a fair bit of knowledge about the object's orbit. Which comes from observations

      1 reply 2 retweets 18 likes
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    6. Michele Bannister‏ @astrokiwi 11 Sep 2019
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      Until the arc of an orbit is sufficiently long, there are really strong uncertainties in what its orbit can be. The ways this gets resolved? More observations

      1 reply 3 retweets 17 likes
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    7. Michele Bannister‏ @astrokiwi 11 Sep 2019
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      This is not the first object since 2017/1I, better known as ʻOumuamua, to show a hyperbolic orbit. Several short-arcs have flourished and slid slowly into the demise of straightforward parabolas. What it took? More observations

      6 replies 4 retweets 29 likes
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    8. Michele Bannister‏ @astrokiwi 11 Sep 2019
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      Orbits are determined by mathematical fits to the astrometry that's sent to the MPC by observers all around the world. At the moment, there are some weird residuals in the fit to the orbit of this candidate object. You know what will resolve that? More observations

      2 replies 2 retweets 27 likes
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    9. Michele Bannister‏ @astrokiwi 11 Sep 2019
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      I too will be delighted to see a second observable interstellar object. And I'm absolutely sure @MinorPlanetCtr are watching the incoming astrometry. For now? No MPEC yet. Sometimes, we just have to wait for the motion of the heavens. And make...more observations. /fin

      6 replies 3 retweets 43 likes
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      Michele Bannister‏ @astrokiwi 11 Sep 2019
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      MPEC! https://minorplanetcenter.net/mpec/K19/K19RA6.html …pic.twitter.com/w27TRv67Wq

      1:51 PM - 11 Sep 2019
      • 25 Retweets
      • 87 Likes
      • Ajay Tiwari Mika Huurre Aldo Reign Paul Marr David Brandon martin_fff tempfolder 🇮🇱 Taylor Dylan T. Murphree
      8 replies 25 retweets 87 likes
        1. Naïve Bayesian‏ @naivebayesian 11 Sep 2019
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          Replying to @astrokiwi @MinorPlanetCtr

          Thank you for keeping us updated.

          0 replies 0 retweets 2 likes
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        1. Daniel Fischer‏ @cosmos4u 11 Sep 2019
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          Replying to @astrokiwi @MinorPlanetCtr

          What is that screenshot of exactly? The - linked - online circular doesn't have any of the text.

          0 replies 0 retweets 2 likes
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        1. Wesley Fraser‏ @wtfastro 11 Sep 2019
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          Replying to @astrokiwi @MinorPlanetCtr

          Here we go again

          0 replies 0 retweets 2 likes
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        1. Wesley Fraser‏ @wtfastro 11 Sep 2019
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          Replying to @astrokiwi @MinorPlanetCtr

          Ou'twoamua

          0 replies 0 retweets 2 likes
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        2. ★ govertschilling‏ @govertschilling 11 Sep 2019
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          Replying to @astrokiwi @MinorPlanetCtr

          why don't they use the letter I again (for interstellar)?

          2 replies 0 retweets 0 likes
        3. John Carney‏ @johncarneyau 11 Sep 2019
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          Replying to @govertschilling @astrokiwi @MinorPlanetCtr

          Because that’s far from confirmed

          0 replies 0 retweets 1 like
        4. End of conversation
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        2. Larry R. Nittler  🚀 🎹 🌖 ☄️‏ @LarryNittler 11 Sep 2019
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          Replying to @astrokiwi @MinorPlanetCtr

          So what are the elements? ( not shown on mpec screenshot)

          1 reply 0 retweets 0 likes
        3. Amanda Stadermann‏ @acstadermann 11 Sep 2019
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          Replying to @LarryNittler @astrokiwi @MinorPlanetCtr

          https://minorplanetcenter.net/mpec/K19/K19RA6.html … At the bottom of that page. Notably: e 3.0794827

          0 replies 0 retweets 1 like
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        1. Meithan West‏ @meithan42 11 Sep 2019
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          Replying to @astrokiwi @MinorPlanetCtr

          Is the uncertainty on the eccentricity good enough to say this is (very?) probably interstellar at this point?

          0 replies 0 retweets 0 likes
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        2. Thread Reader App‏ @threadreaderapp 12 Sep 2019
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          Replying to @Big_Frank_612

          Hi! please find the unroll here: Thread by @astrokiwi: "Orbits and when to get excited: a thread There's a lot of excitement in the last day or so about a candidate near-Earth […]" #gb00234 https://threadreaderapp.com/thread/1171720409152184323.html … Enjoy :) 🤖

          0 replies 0 retweets 0 likes
        3. End of conversation

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