Astronomy and Astrophysics – Astronomy
Scientific paper
May 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003dps....35.2601h&link_type=abstract
American Astronomical Society, DPS meeting #35, #26.01; Bulletin of the American Astronomical Society, Vol. 35, p.963
Astronomy and Astrophysics
Astronomy
Scientific paper
The Near-Earth Asteroid Tracking (NEAT) Program at the Jet Propulsion laboratory remotely operates two autonomous 1.2-meter telescopes at widely geographically separated locations on a near-nightly basis. Though optimized for the discovery of near-Earth asteroids, we have collected over 400 CCD images of approximately 50 short and long-period comets over the last 25 months. Using the R-band magnitudes as archived in the USNO catalog of background field stars, we are able to derive photometrically calibrations accurate to approximately +/-0.1 mag over a wide range of seeing and sky transparency.
The NEAT archive represents a large, self-consistent cometary data-set which we have used to explore activity as a function of heliocentric distance, dust production (Afrho), cometary dust trails, etc. We have modeled the coma contamination for comets at large heliocentric distance (>3 AU) and have obtained upper limits for nuclear magnitudes and constraints to the cometary size-frequency distribution.
Bambery R.
Hicks Michael
Lawrence Kenneth
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