Results from the 2009 April 21 Pluto Occultation

Details Results from the 2009 April 21 Pluto Occultation Results from the 2009 April 21 Pluto Occultation

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009dps....41.0605y&link_type=abstract

American Astronomical Society, DPS meeting #41, #6.05

Astronomy and Astrophysics

Astronomy

Scientific paper

We observed the 2009 April 21 occultation by Pluto of a I=14.6 from five sites in Africa: (1) a 0.35-m telescope at Les Makes Observatory at Reunion Island (L. Wasserman, J. Regester), (2) a portable 0.35-m telescope at Mokuti Lodge, Namibia, near the east entrance of Etosha National Park (M. Buie, L. Young), (3) a 0.75-m telescope at HESS, Namibia (E. Young, J. Spencer), (4) a 1.5-m telescope at Boyden Observatory (C. Olkin, K. Shoemaker, H. Van Heerden) and (5) the 1.9-m telescope at SAAO (P. Tamblyn, A. Gulbis). Data was acquired at all five sites. Reunion Island turned out to be north of the shadow. A grazing event was observed at Etosha. HESS experienced scattered clouds; ingress was observed through up to 5 magnitudes of extinction. Deep occultations were observed at Boyden and SAAO. These lightcurves will allow us to measure the pressure, temperature, and bulk abundance of Pluto's changing atmosphere. We will present the combined analysis of these lightcurves.

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