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kchangnyt's profile
Kenneth Chang
Kenneth Chang
Kenneth Chang
@kchangnyt

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Kenneth Chang

@kchangnyt

Science reporter at the New York Times. Pluto, dinosaurs, NASA, viral math & more...

New York, NY
nytimes.com/by/kenneth-cha…
Joined April 2014

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    1. iDreamOfSushi‏ @FaizaFaria 27 May 2016
      Replying to @kchangnyt

      The space-side is mus-characterizing the ground-side capability. And then you mentioned a planet to make an asteroid point. /2

      1 reply 0 retweets 1 like
    2. Kenneth Chang‏ @kchangnyt 27 May 2016
      Replying to @FaizaFaria

      It was Nathan's anecdote to counter an assertion by Amy that LSST could not spot any asteroids within Earth orbit.

      2 replies 0 retweets 0 likes
    3. iDreamOfSushi‏ @FaizaFaria 27 May 2016
      Replying to @kchangnyt

      But 'any' is a very strong word. There are twilight and dawn, so LSST will get some. /2

      1 reply 0 retweets 0 likes
    4. Kenneth Chang‏ @kchangnyt 27 May 2016
      Replying to @FaizaFaria

      Myhrvold said Mainzer claimed LSST couldn't observe anything less than 90 degree angle (forget exact term).

      2 replies 0 retweets 0 likes
    5. iDreamOfSushi‏ @FaizaFaria 27 May 2016
      Replying to @kchangnyt

      Okay, let's not get into he said she said. Mainzer would be insane to make such a claim. For that matter, anyone who has seen /1

      1 reply 0 retweets 1 like
    6. Kenneth Chang‏ @kchangnyt 27 May 2016
      Replying to @FaizaFaria

      Ivesic said that was a common misconception about LSST among asteroid researchers. I really did do a lot of reporting.

      2 replies 0 retweets 0 likes
    7. iDreamOfSushi‏ @FaizaFaria 27 May 2016
      Replying to @kchangnyt

      The Tianhe-2 supercomputer can also do the work of a powerful gaming PC. There is a point of efficiency and optimization. /2

      1 reply 0 retweets 0 likes
    8. Kenneth Chang‏ @kchangnyt 27 May 2016
      Replying to @FaizaFaria

      LSST will find more than a few NEOs. Even the Grav/Mainzer/ Spahr paper said 60%.

      2 replies 0 retweets 0 likes
    9. Kenneth Chang‏ @kchangnyt 27 May 2016
      Replying to @kchangnyt @FaizaFaria

      Ivesic says 80%+ with optimization of the cadence. Then it's reasonable to ask cost/benefit, no?

      1 reply 0 retweets 0 likes
    10. iDreamOfSushi‏ @FaizaFaria 27 May 2016
      Replying to @kchangnyt

      I am sure he means 80% of those visible from the Southern sky, not 80% of all. So 80% of 50% ==> 40%. /1

      1 reply 0 retweets 0 likes
      Kenneth Chang‏ @kchangnyt 27 May 2016
      Replying to @FaizaFaria

      We don’t care about asteroids far off the ecliptic, right? Those can’t hit Earth unless perihelion is right at 1 AU.

      6:50 PM - 27 May 2016
      4 replies 0 retweets 0 likes
        1. Kenneth Chang‏ @kchangnyt 27 May 2016
          Replying to @kchangnyt @FaizaFaria

          Or other unlikely configurations.

          0 replies 0 retweets 0 likes
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        1. iDreamOfSushi‏ @FaizaFaria 27 May 2016
          Replying to @kchangnyt

          We care a great deal if they are, may be, visible in the Northern sky only? Again, LSST will be awesome for charting half the /1

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        1. iDreamOfSushi‏ @FaizaFaria 27 May 2016
          Replying to @kchangnyt

          sky. Even if all its time is used on looking for NEOs, it still can't say anything about objects in the Northern sky. /2

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        1. iDreamOfSushi‏ @FaizaFaria 27 May 2016
          Replying to @kchangnyt

          LSST has incredible capabilities that justify its existence. Finding NEOs for planetary defense is not one of them. /3

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