2015-11-13 WT1190F Animation with Guide (horizont fixed)




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Published on Nov 12, 2015

The rocket stage WT1190F will entry earths atmosphere at morning of 2015 Nov 13. You can see it from Europe until about one hour before entry.

The object is moving very fast (up to 3 arcmin per second!). That is very difficult to track and image.

But orbital geometry give us a chance: the object moves in another way in the alt/az system (relative to fixed point at horizont). In this system it makes a loop and has a minimum moving of only 3 arcmin per minute.

If you manage to find the correct alt/az for you local observatory (e.g. by center a bright star with these alt/az at a time), you can image the object with a fixed camera (stars will be trailed).

Ephemeris you can compute with minorplanetcenter.net/iau/artsats/artsats.html or ssd.jpl.nasa.gov/horizons.cgi?s_time=1#top

This animation is made for the island of Amrum/Germany. Other sites may have some degrees difference due to parallax.

Thanks for Bill Gray of projectpluto.com for his great program Guide. The only program so far I know, that has distant satellites too in his data sources.


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