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Old 23-05-2025, 07:10 PM
Dennis
Dazzled by the Cosmos.

Dennis is offline
 
Join Date: May 2005
Location: Brisbane
Posts: 11,762
I just downloaded (23/05/2025) the current set of orbital elements for 2025 KF using The Sky X Pro and then performed an Image Link using the image I took on 21/05/2025, then compared the two plots in The Sky X Pro.

“Missed it by that much” according to Maxwell Smart.

The results now indicate a difference of just under 1 degree between the latest plotted position in TSX for 21/05/2025, (purple rectangle), at the time I captured the image, and the actual position in my image (white rectangle) on 21/05/2025, 2 days ago.

One of the Moderator’s on CN wrote:

“Such an anomaly is common once a small body approaches the Earth/Moon system. The strength of our gravity can create significant perturbations in a minor body's path, making orbital elements from even an hour in the past to be approximations at best.

JPL's Horizons, by contrast, solves the multiple-body problem at each step along the minor planet's path, taking the Earth and Moon into account as perturbers”.


Dennis.
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