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Hello,
Thanks you very much for your work!
I am translating pyephem code to skyfield and I have noticed pyephem calculation run at least at 30x faster than skyfield one.
My program wants to calcula…
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When elevation changes rise-set times have to change also due to atmospheric dip. Checked with JPL Horizons.
ghost updated
4 years ago
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Initial tests show 0.36s to calculate each model (237 positions) - i.e. 1.5ms per position. This is far too slow to be useful.
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Brandon, there more I do...
Following situation: I do a twilight chart like this one:
t = ts.utc(2020, 1, ran…
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I am not sure whether this is a right forum to ask this, but i am curious to know. The `subpoint` feature in `skyfield` can give us position of `sun` and `moon` in whatever time we ask for.
For examp…
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I came across a slightly odd behaviour when trying to filter the dict of objects loaded using `skyfield.api.load.tle`.
Let's say, I want to load the list of active satellites from Celestrak and amo…
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I would like to be able to find time of sunrise at an elevation above mean sea level (300 km up). I don't think the Almanac methods consider elevation, is there a way to do this?
Thanks...
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I have an application where I am trying to calculate the position of a satellite on a very fine time grid (say millions of points).
The simple call to
`geocentric = satellite.at(t)`
seems to run …
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The `Time` class should contain the `__hash__` method. This will allow it to be used with other functions that require it such as `functools.lru_cache`.
Here is an example implementation:
```
…