-
```
Due to limited accuracy in the Saturnian satellite ephemerides, Cassini can be
sometimes observed to crash into a moon instead of performing a close flyby,
e.g. the Aug. 11, 2008 flyby of Encela…
-
As far as I know the Flight Recorder GPS requires ephemeris to be uploaded from the app. It would be nice to be able to do this and get a faster fix without having to use the app.
I see the Free Fli…
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First I need to add J2 to bodies, and then a function with this signature:
```
def sunsync(cls, attractor, alt, omega, ecc=0.0 * u.one, ...)
```
Actually if I want to define the local time at the as…
-
```
Due to limited accuracy in the Saturnian satellite ephemerides, Cassini can be
sometimes observed to crash into a moon instead of performing a close flyby,
e.g. the Aug. 11, 2008 flyby of Encela…
-
This might make a good river: http://ephemerides.planet-labs.com/
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From a discussion on astropy-dev:
https://groups.google.com/forum/#!topic/astropy-dev/5KH5Ny1m6WY
The tentative conclusion there was to support Heliocentric and Barycentric Julian Dates via utility f…
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[edited by @astrofrog @taldcroft]
There was a list of issues in this issue that had been copied over from the 1.1 issue (#3519) but which also diverged from what we did for 1.2 in the end, so I've mo…
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How skyfield supports new DE430? Or I have to use DE421?
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OOrb compiles and runs as expected with gfortran 4.9.
However, newer compilers (gfortran 5 or newer) produce the following error at runtime:
[D-108-179-173-36:~/lsstRepos/oorb/python] lynnej% ../ma…
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I'm using sgp4 to get TEME coordinates. I could use skyfield to convert these to GCRS. My problem is that this adds a massive dependency to my own library, caused by the de421 dependency of skyfield …