[Spice_discussion] Long-term accuracy of the IAU_MOON frame

[Ernie Wright]

On 05/11/2015 11:59 AM, John Irwin wrote:

> Just for everyone's reference I've plotted the difference between IAU_MOON
> and the DE430/DE431 ME orientations, covering 1550-2550 for DE430 and
> 1000-2000 for DE431.
>
> http://www.jir1667.plus.com/iau_moon/iau-moon-vs-de430-de431.png

Interesting.

Prior to 1500, the oscillations look like they have a period about equal 
to a saros.

- Ernie


-- 
Ernest T. Wright                                ernest.t.wright at nasa.gov
Scientific Visualization Studio                 http://svs.gsfc.nasa.gov
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