Photometric observation of Venus from Akatsuki Ultraviolet Imager (UVI)

Details Photometric observation of Venus from Akatsuki Ultraviolet Imager (UVI) Photometric observation of Venus from Akatsuki Ultraviolet Imager (UVI)

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufm.p13a1650y&link_type=abstract

American Geophysical Union, Fall Meeting 2011, abstract #P13A-1650

Physics

[5405] Planetary Sciences: Solid Surface Planets / Atmospheres, [6295] Planetary Sciences: Solar System Objects / Venus

Scientific paper

We have conducted photometric observations of Venus at 5 wavelength (283nm, 365nm, 0.90 micron, 2.02 micron, 10 micron) using 4 cameras onboard Akatsuki (Planet-C) in March 2011. During this period the spacecraft passed through the space between the Sun and Venus, and the distance from the spacecraft to Venus was about 13 million kilometers with the angular diameter of Venus as seen from the spacecraft being 0.05 degree. Because the spacecraft was exposed to a solar radiation stronger than that in the original plan due to the new cruising orbit after the failure of the Venus orbit insertion in December 2010, the attitude control of the spacecraft was severely limited by thermal constraints, and thus the cameras cannot be directed to Venus for a long time. Nevertheless, we could take Venus images roughly once a day during two weeks. In this paper we report initial results from the two wavelength channels by the Ultraviolet Imager (UVI). The 365 nm brightness is subject to an unknown absorber at the cloud top, while the 283 nm brightness is sensitive to sulfur dioxide. The brightnesses at these wavelengths both show short-timescale fluctuations with a time scale of several days superposed on a smooth trend associated with the change in the phase angle during this period.

Affiliated with

Also associated with

No associations

Rating

Photometric observation of Venus from Akatsuki Ultraviolet Imager (UVI) does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Photometric observation of Venus from Akatsuki Ultraviolet Imager (UVI), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photometric observation of Venus from Akatsuki Ultraviolet Imager (UVI) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-868194