New observations of Saturn's coorbital satellites

The strong planetary methane and hydrogen absorption at 2.0-2.4 microns are exploited in the present observations of the Saturnian coorbital satellites Janus and Epimetheus as they passed over the north pole of Saturn at superior conjunction. These observations confirm the orbital model results of Y...

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Bibliographic Details
Main Authors: Nicholson, Philip D., Hamilton, Douglas P., Matthews, Keith, Yoder, Charles F.
Format: Other/Unknown Material
Language:unknown
Published: 1992
Subjects:
91
North Pole
Janus
Online Access:http://ntrs.nasa.gov/search.jsp?R=19930038738
id ftnasantrs:oai:casi.ntrs.nasa.gov:19930038738
record_format openpolar
spelling ftnasantrs:oai:casi.ntrs.nasa.gov:19930038738 2023-05-15T17:39:45+02:00 New observations of Saturn's coorbital satellites Nicholson, Philip D. Hamilton, Douglas P. Matthews, Keith Yoder, Charles F. Unclassified, Unlimited, Publicly available Dec. 1992 http://ntrs.nasa.gov/search.jsp?R=19930038738 unknown http://ntrs.nasa.gov/search.jsp?R=19930038738 Accession ID: 93A22735 Copyright Other Sources 91 Icarus; 100; 2; p. 464-484. 1992 ftnasantrs 2012-02-15T20:01:33Z The strong planetary methane and hydrogen absorption at 2.0-2.4 microns are exploited in the present observations of the Saturnian coorbital satellites Janus and Epimetheus as they passed over the north pole of Saturn at superior conjunction. These observations confirm the orbital model results of Yoder at al. (1989), especially in the question as to the low density of both satellites; in addition, a much stronger solution is furnished which is essentially independent of 1966 data for Epimethius. The low density results are interpreted as indicative that the objects are composed of relatively pure water ice, but with porosities of the order of 30 percent. Other/Unknown Material North Pole NASA Technical Reports Server (NTRS) North Pole Janus ENVELOPE(163.100,163.100,-71.067,-71.067)
institution Open Polar
collection NASA Technical Reports Server (NTRS)
op_collection_id ftnasantrs
language unknown
topic 91
spellingShingle 91
Nicholson, Philip D.
Hamilton, Douglas P.
Matthews, Keith
Yoder, Charles F.
New observations of Saturn's coorbital satellites
topic_facet 91
description The strong planetary methane and hydrogen absorption at 2.0-2.4 microns are exploited in the present observations of the Saturnian coorbital satellites Janus and Epimetheus as they passed over the north pole of Saturn at superior conjunction. These observations confirm the orbital model results of Yoder at al. (1989), especially in the question as to the low density of both satellites; in addition, a much stronger solution is furnished which is essentially independent of 1966 data for Epimethius. The low density results are interpreted as indicative that the objects are composed of relatively pure water ice, but with porosities of the order of 30 percent.
format Other/Unknown Material
author Nicholson, Philip D.
Hamilton, Douglas P.
Matthews, Keith
Yoder, Charles F.
author_facet Nicholson, Philip D.
Hamilton, Douglas P.
Matthews, Keith
Yoder, Charles F.
author_sort Nicholson, Philip D.
title New observations of Saturn's coorbital satellites
title_short New observations of Saturn's coorbital satellites
title_full New observations of Saturn's coorbital satellites
title_fullStr New observations of Saturn's coorbital satellites
title_full_unstemmed New observations of Saturn's coorbital satellites
title_sort new observations of saturn's coorbital satellites
publishDate 1992
url http://ntrs.nasa.gov/search.jsp?R=19930038738
op_coverage Unclassified, Unlimited, Publicly available
long_lat ENVELOPE(163.100,163.100,-71.067,-71.067)
geographic North Pole
Janus
geographic_facet North Pole
Janus
genre North Pole
genre_facet North Pole
op_source Other Sources
op_relation http://ntrs.nasa.gov/search.jsp?R=19930038738
Accession ID: 93A22735
op_rights Copyright
_version_ 1766140536533549056

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