elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Contact | Deutsch
Fontsize: [-] Text [+]

A new search for surface features on the dark leading side of Iapetus

Denk, T. and Jaumann, R. and Neukum, G. (1994) A new search for surface features on the dark leading side of Iapetus. In: Bulletin of the American Astronomical Society, 3, 1163-. 26th Annual Meeting of the American Astronomical Society, Division for Planetary Science (DPS), Washington, DC, Oct 31 - Nov. 4, 1994.

Full text not available from this repository.

Abstract

The most unusual property of the Saturnian satellite Iapetus is the extreme difference in brightness between the leading and trailing/ polar hemispheres (albedo 0.05 and 0.5,respectively). While individual Voyager images of the bright side show many features like craters or scarps, the dark Cassini regio area appears featureless. The main reason for this lack is the low signal-to-noise ratio of the raw-image data. Depending on the used filter and exposure time, the dark side is (on average) onyl about 2-3 % brighter than the dark sky. Another problem is the low resolution of the Cassini regio frames (23 km/pixel or worse). The S/N ratio can be improved using subpixel registration and the summation of different frames from one image sequence. This allows the S/N ratio to be improved bya factor of greater than three. Preliminary results indicate the features appears within Cassini regio at a higher signal level. One example is a circular structure with a diameter of about 400 km in the northern part of the center of the leading side. A description of these features is presented.

Document Type:Conference or Workshop Item (Speech)
Additional Information: LIDO-Berichtsjahr=1994, pages=1,
Title:A new search for surface features on the dark leading side of Iapetus
Authors:
AuthorsInstitution or Email of Authors
Denk, T.UNSPECIFIED
Jaumann, R.UNSPECIFIED
Neukum, G.UNSPECIFIED
Date:1994
Journal or Publication Title:Bulletin of the American Astronomical Society
Volume:3
Page Range:1163-
Series Name:26
Status:Published
Keywords:Iapetus; Japetus; Cassini regio, surface; features; leading side
Event Title:26th Annual Meeting of the American Astronomical Society, Division for Planetary Science (DPS), Washington, DC, Oct 31 - Nov. 4, 1994
HGF - Research field:UNSPECIFIED
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
DLR - Program:no assignment
DLR - Research theme (Project):UNSPECIFIED
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Institut für Planetenerkundung
Deposited By: elib DLR-Beauftragter
Deposited On:02 Apr 2006
Last Modified:27 Apr 2009 09:47

Repository Staff Only: item control page

Browse
Search
Help & Contact
Informationen
electronic library is running on EPrints 3.3.12
Copyright © 2008-2012 German Aerospace Center (DLR). All rights reserved.