Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991plas.rept..180t&link_type=abstract
In NASA, Washington, Reports of Planetary Astronomy, 1991 p 180 (SEE N92-12792 03-89)
Astronomy and Astrophysics
Astronomy
Asteroids, Indexes (Documentation), Magnitude, Planet Ephemerides, Slopes, Distance, Extremely High Frequencies, Phase Shift
Scientific paper
A new listing of absolute magnitudes (H) and slope parameters (G) has been created and published in the Minor Planet Circulars; this same listing will appear in the 1992 Ephemerides of Minor Planets. Unlike previous listings, the values of the current list were derived from fits of data at the V band. All observations were reduced in the same fashion using, where appropriate, a single basis default value of 0.15 for the slope parameter. Distances and phase angles were computed for each observation. The data for 113 asteroids was of sufficiently high quality to permit derivation of their H and G. These improved absolute magnitudes and slope parameters will be used to deduce the most reliable bias-corrected asteroid size-frequency distribution yet made.
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