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Comet in Frame

Ned Smith
2022-02-07
2022-02-07
  • Ned Smith

    Ned Smith - 2022-02-07

    The cimet C/2021 C6 (Lemmon) should be annotated in near the center of this frame. The latest cometELS.txt has been downloaded and the annotation app recognizes its presence. What might be the problem?

     
  • han.k

    han.k - 2022-02-07
    • Error in the time in UTC
    • error in your Earth position (small effect)
    • error in data cometELS.txt
    • error in ASTAP

    No problem to have a look. Could you share the image in FITS or raw format?
    What was the local time and time zone?

    Han

     
  • Ned Smith

    Ned Smith - 2022-02-07

    EST -5
    Jan. 29 19:44:09 localtime
    Jan. 30 00:44:09 UT
    I thought this file was attached to my initial post.

     
  • han.k

    han.k - 2022-02-07

    I have plotted the image in my planetarium program. See attached. The comet is outside the image.

    The magnitude is foreseen as 19.2. So it wlll be very very faint.

    You could check the position in JPL horizon to be sure.

    Han

     
  • Ned Smith

    Ned Smith - 2022-02-07

    Looks like my initial conditions were wrong.
    Thanks for your explanation.

     

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