Local Lunar Gravity Field Analysis over the South Pole-aitken Basin from SELENE Farside Tracking Data
We present a method with which we determined the local lunar gravity field model over the South Pole-Aitken (SPA) basin on the farside of the Moon by estimating adjustments to a global lunar gravity field model using SELENE tracking data. Our adjustments are expressed in localized functions concentr...
Main Authors: | , , , |
---|---|
Format: | Other/Unknown Material |
Language: | unknown |
Published: |
2012
|
Subjects: | |
Online Access: | http://hdl.handle.net/2060/20140004931 |
id |
ftnasantrs:oai:casi.ntrs.nasa.gov:20140004931 |
---|---|
record_format |
openpolar |
spelling |
ftnasantrs:oai:casi.ntrs.nasa.gov:20140004931 2023-05-15T18:22:03+02:00 Local Lunar Gravity Field Analysis over the South Pole-aitken Basin from SELENE Farside Tracking Data Matsumoto, Koji Sasaki, Sho Ishihara, Yoshiaki Goossens, Sander Johannes Unclassified, Unlimited, Publicly available February 2012 application/pdf http://hdl.handle.net/2060/20140004931 unknown Document ID: 20140004931 http://hdl.handle.net/2060/20140004931 Copyright, Distribution under U.S. Government purpose rights CASI Lunar and Planetary Science and Exploration GSFC-E-DAA-TN9230 E02005 Journal of Geophysical Research: Planets; 117; E2; 1-16 2012 ftnasantrs 2019-07-21T00:32:11Z We present a method with which we determined the local lunar gravity field model over the South Pole-Aitken (SPA) basin on the farside of the Moon by estimating adjustments to a global lunar gravity field model using SELENE tracking data. Our adjustments are expressed in localized functions concentrated over the SPA region in a spherical cap with a radius of 45deg centered at (191.1 deg E, 53.2 deg S), and the resolution is equivalent to a 150th degree and order spherical harmonics expansion. The new solution over SPA was used in several applications of geophysical analysis. It shows an increased correlation with high-resolution lunar topography in the frequency band l = 40-70, and admittance values are slightly different and more leveled when compared to other, global gravity field models using the same data. The adjustments expressed in free-air anomalies and differences in Bouguer anomalies between the local solution and the a priori global solution correlate with topographic surface features. The Moho structure beneath the SPA basin is slightly modified in our solution, most notably at the southern rim of the Apollo basin and around the Zeeman crater Other/Unknown Material South pole NASA Technical Reports Server (NTRS) Aitken ENVELOPE(-44.516,-44.516,-60.733,-60.733) South Pole |
institution |
Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
Lunar and Planetary Science and Exploration |
spellingShingle |
Lunar and Planetary Science and Exploration Matsumoto, Koji Sasaki, Sho Ishihara, Yoshiaki Goossens, Sander Johannes Local Lunar Gravity Field Analysis over the South Pole-aitken Basin from SELENE Farside Tracking Data |
topic_facet |
Lunar and Planetary Science and Exploration |
description |
We present a method with which we determined the local lunar gravity field model over the South Pole-Aitken (SPA) basin on the farside of the Moon by estimating adjustments to a global lunar gravity field model using SELENE tracking data. Our adjustments are expressed in localized functions concentrated over the SPA region in a spherical cap with a radius of 45deg centered at (191.1 deg E, 53.2 deg S), and the resolution is equivalent to a 150th degree and order spherical harmonics expansion. The new solution over SPA was used in several applications of geophysical analysis. It shows an increased correlation with high-resolution lunar topography in the frequency band l = 40-70, and admittance values are slightly different and more leveled when compared to other, global gravity field models using the same data. The adjustments expressed in free-air anomalies and differences in Bouguer anomalies between the local solution and the a priori global solution correlate with topographic surface features. The Moho structure beneath the SPA basin is slightly modified in our solution, most notably at the southern rim of the Apollo basin and around the Zeeman crater |
format |
Other/Unknown Material |
author |
Matsumoto, Koji Sasaki, Sho Ishihara, Yoshiaki Goossens, Sander Johannes |
author_facet |
Matsumoto, Koji Sasaki, Sho Ishihara, Yoshiaki Goossens, Sander Johannes |
author_sort |
Matsumoto, Koji |
title |
Local Lunar Gravity Field Analysis over the South Pole-aitken Basin from SELENE Farside Tracking Data |
title_short |
Local Lunar Gravity Field Analysis over the South Pole-aitken Basin from SELENE Farside Tracking Data |
title_full |
Local Lunar Gravity Field Analysis over the South Pole-aitken Basin from SELENE Farside Tracking Data |
title_fullStr |
Local Lunar Gravity Field Analysis over the South Pole-aitken Basin from SELENE Farside Tracking Data |
title_full_unstemmed |
Local Lunar Gravity Field Analysis over the South Pole-aitken Basin from SELENE Farside Tracking Data |
title_sort |
local lunar gravity field analysis over the south pole-aitken basin from selene farside tracking data |
publishDate |
2012 |
url |
http://hdl.handle.net/2060/20140004931 |
op_coverage |
Unclassified, Unlimited, Publicly available |
long_lat |
ENVELOPE(-44.516,-44.516,-60.733,-60.733) |
geographic |
Aitken South Pole |
geographic_facet |
Aitken South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
CASI |
op_relation |
Document ID: 20140004931 http://hdl.handle.net/2060/20140004931 |
op_rights |
Copyright, Distribution under U.S. Government purpose rights |
_version_ |
1766201406649270272 |