Re: Data for comets - how to read?

Gareth V. Williams wrote:



From this, I suspect you were thinking that what you were looking at
was an ephemeris. It wasn't, it was an observations made at the stated
time. If you want ephemerides (or orbits) for 73P (or any other comet or
minor planet) use the Minor Planet Center's Minor Planet Ephemeris Service
(http://cfa-www.harvard.edu/iau/MPEph/MPEph.html).


Yes, thought it was an ephemeris.
I also found this link today
http://ssd.jpl.nasa.gov/

Thanks


.

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