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Re: {MPML} 2008 EZ7 and NEA BJ19377 similarity

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  • Bill J Gray
    Hi Dmitry, all, I got the following elements for BJ19377: Orbital elements: BJ19377 Perihelion 2008 Mar 11.674505 TT = 16:11:17 (JD 2454537.174505) Epoch 2008
    Message 1 of 5 , Mar 8, 2008
      Hi Dmitry, all,

      I got the following elements for BJ19377:

      Orbital elements:
      BJ19377
      Perihelion 2008 Mar 11.674505 TT = 16:11:17 (JD 2454537.174505)
      Epoch 2008 Mar 1.0 TT = JDT 2454526.5 Earth MOID: 0.0036
      M 356.824 (2000.0) P Q
      n 0.297455 Peri. 1.809 -0.989407 -0.143196
      a 2.222565 Node 169.863 0.131428 -0.953328
      e 0.55156 Incl. 7.781 0.061641 -0.265817
      P 3.31 H 24.6 G 0.15 q 0.996679 Q 3.448451
      From 17 observations 2008 Mar. 8-8 (16.7 hr); RMS error 0.801 arcseconds

      ...which can be compared to
      http://home.gwi.net/~pluto/mpecs/mpec.htm#elements . To compare
      apples to apples, look at the "before earth encounter" elements:
      peri=1.8, node=168.8, incl=9.2. But a=1.83, e=.46. It's hard to
      see this as a for-real match.

      Reiner, thanks for the tip on NEOCP. I can get the data on
      maybe one try in five. Guess I just wasn't persistent enough before.

      -- Bill
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