Discussions

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  Comet orbital elements from MPC query

  jurezakrajsek started Dec 20, 2021 in Show and tell

  

  

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  Using Skyfield offline in a Juno Jupyter notebook

  alexanderflint asked Apr 21, 2024 in Q&A · Unanswered

  

  

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  isSunlit Function Potential Update

  pjimeco started Apr 10, 2024 in Ideas

  

  

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  Using Alt Az Distance to find position of satellite in ICRF

  sgboakes asked Apr 10, 2024 in Q&A · Unanswered

  

  

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  Is there an equivalent to pyephem's next_pass function?

  wgaylord asked Mar 28, 2024 in Q&A · Unanswered

  

  

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  [Repost with additional info] Geocentric altitude/az of the sun and moon.

  hidp123 asked May 26, 2023 in Q&A · Answered

  

  

  

  

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  Planetary Reference Frames with de440

  YingChangJ asked Mar 22, 2024 in Q&A · Closed · Answered

  

  

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  How can you track the historical distance between two satellites with updating elsets?

  davidkurtenb asked Mar 18, 2024 in Q&A · Unanswered

  

  

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  How to get the geocentric position of the ascending lunar node relative to the true equator and equinox of date

  hgducharme asked Mar 12, 2024 in Q&A · Unanswered

  

  

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  Does satnum matter? (satrec.sgp4init argument)

  CDWimmer asked Mar 11, 2024 in Q&A · Answered

  

  

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  Get a subset

  powersoft started Feb 5, 2024 in General

  

  

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  GAST and how to use it

  bathoorn asked Feb 13, 2024 in Q&A · Answered

  

  

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  Find the distance of the satellite from the moon SkyField

  MiliPopsZHuZHu asked Feb 8, 2024 in Q&A · Unanswered

  

  

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  Subpoint sun on earth

  powersoft asked Jan 26, 2024 in Q&A · Answered

  

  

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  chiron location

  tutucea started Sep 21, 2023 in General

  

  

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  Rotation_at(): Produce rotation matrix from ICRS to topocentric frame at Geographic Position

  concord647 asked Nov 28, 2023 in Q&A · Answered

  

  

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  Actual accuracy of Skyfield+SGP4 in computing satellite paths ?

  alxobs asked Dec 16, 2023 in Q&A · Unanswered

  

  

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  Newbie question: RA and decl of moon

  doug719 asked Dec 6, 2023 in Q&A · Unanswered

  

  

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  Geodetic Ground-Station position in ICRS at time x

  concord647 asked Oct 25, 2023 in Q&A · Unanswered

  

  

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  Convert from ECEF to ECI

  natczicro asked Dec 6, 2023 in Q&A · Closed · Unanswered

  

  

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  How to calculate proper motions

  carbaior asked Dec 1, 2023 in Q&A · Answered

  

  

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  Map projection question

  bathoorn asked Nov 15, 2023 in Q&A · Unanswered

  

  

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  Computing satellite orbits with multiple TLEs

  syk-hugo asked May 10, 2022 in Q&A · Answered

  

  

  

  

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  Calculate planet positions

  rajatkharbanda asked Oct 29, 2023 in Q&A · Unanswered

  

  

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  Best way to observe multiple targets at multiple times?

  LJBMyco asked Oct 11, 2023 in Q&A · Unanswered

  

  

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