Polarimetry of near-Earth asteroid 33342 (1998 WT24). Synthetic phase angle dependence of polarization for the E-type asteroids

Details Polarimetry of near-Earth asteroid 33342 (1998 WT24). Synthetic phase angle dependence of polarization for the E-type asteroids Polarimetry of near-Earth asteroid 33342 (1998 WT24). Synthetic phase angle dependence of polarization for the E-type asteroids

Nov 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.500..887k&link_type=abstract

In: Proceedings of Asteroids, Comets, Meteors - ACM 2002. International Conference, 29 July - 2 August 2002, Berlin, Germany. Ed

Astronomy and Astrophysics

Astrophysics

6

Near-Earth Objects: Neas, E-Type Asteroids, Polarimetry, Photometry, 33342 (1998 Wt24)

Scientific paper

Observations of NEA 33342 (1998 WT24) were performed at the Pik Terskol Observatory, the Crimean Astrophysical Observatory and the Chuguev Observational Station between December 2-19, 2001. The polarimetric (Pmin = -0.25% and the polarimetric slope h = 0.039% per degree) and photometric (the phase coefficient β = 0.021 mag/deg) results indicate that asteroid 33342 is an E-type asteroid. The E-type asteroid synthetic polarization curve consists of two parts: a narrow peak centered at α ~ 1.5°, superimposed on the regular negative polarization branch which converts to positive polarization branch for α ≥ 18°. The maximum of positive polarization is 1.6%-1.8% at the phase angle range 72°-80° for the BVRI bands. The albedo and the size of asteroid 33342 are 0.43 and 0.42;times;0.33 km, respectively.

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