Cometary ephemerides - needs and concerns

Details Cometary ephemerides - needs and concerns Cometary ephemerides - needs and concerns

Oct 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981motc.conf...46y&link_type=abstract

In its Mod. Observational Tech. for Comets p 46-49 (SEE N82-13989 04-89)

Astronomy and Astrophysics

Astronomy

Comets, Ephemerides, Position (Location), Astrometry, Celestial Mechanics, Ephemeris Time, Perturbation

Scientific paper

With the use of narrow field-of-view instrumentation on faint comets, the accuracy requirements upon computed ephemerides are increasing. It is not uncommon for instruments with a one arc minute field-of-view to be tracking a faint comet that is not visible without a substantial integration time. As with all ephemerides of solar syste objects, the computed motion and reduction of these observations, the computed motion of a comet is further depenent upon effects related to the comet's activity. Thus, the ephemeris of an active comet is corrupted by both observational errors and errors due to the comet's activity.

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