Presses universitaires de Louvain onixsuitesupport@onixsuite.com 20260816T1639Z eng

COM.ONIXSUITE.9782390613299 03 01 Presses universitaires de Louvain 01 SKU 104813 02 2390613292 03 9782390613299 15 9782390613299 02 01 00 BC 00 01 9.45 in 02 6.30 in 08 16.30 oz 01 24 cm 02 16 cm 08 462 gr BE 10 02 672 01 02 Thèses de l'Université catholique de Louvain (UCL) 03 Thèses de la Faculté des sciences 01 01 Surface Gravity Modelling and Space Gravimeter Development in the Context of Solar System Small Bodies 1 A01 01 Onixsuite Contributor ID 6683 Matthias Noeker Noeker, Matthias Matthias Noeker <p>Since 2019, Matthias Noeker is an Aerospace Engineer and PhD Researcher at the Royal Observatory of Belgium and the Université catholique de Louvain. Before moving to Belgium, Matthias Noeker graduated from Delft University of Technology with the degree of Master of Science (M.Sc. – cum laude) in Aerospace Engineering. Here, he specialised in the Master's track Spaceflight and the profile Space Exploration. A first link with his current work was made at Queen’s University. Matthias Noeker followed a Dual Award Undergraduate Programme in Mechanical Engineering and graduated from the University of Siegen (B.Sc.) and the University of Portsmouth (BEng (Hons)).</p> 01 eng 00 288 03 10 SCI000000 10 SCI005000 10 SCI055000 12 P 12 PG 12 PGG 24 INTERNET Astronomie et géophysique 24 INTERNET Sciences exactes 24 INTERNET Physique 29 2012 3051 SCIENCES FONDAMENTALES 29 2012 4119 Astrophysique 01 06 03 00 <p>The two planetary defense ESA Hera and NASA DART missions aim at demonstrating asteroid deflection capabilities. The former will follow the latter to the binary asteroid system Didymos. One payload of the Hera mission is the GRAvimeter for small Solar System bodies (GRASS) to land on Dimorphos for in-situ surface gravimetry. This will be the first-ever extraterrestrial surface gravimeter experiment on a small body. The present PhD thesis contributed to this novel instrument development, from early prototyping to the final instrument flight model (FM), scheduled for launch in 2024. The preparation of gravimeters to any celestial target, but moreso the interpretation of the finally returned data to Earth, demand excellent (surface) gravity simulations. Especially on small, generally non-spherical, bodies, this is non-trivial and ddressed further in this work. Different contributions to gravity and the different existing gravitation modelling methods are introduced. Then, a comparison of three of these methods is performed, and the surface gravity for different cases, including Hera's target, are simulated. Finally, zooming in from the global to the local scale, the novel Wedge-Pentahedra Method (WPM) is presented, allowing to account for local topography surrounding a gravimeter measurement location and influencing the measurement.</p> 02 00 The two planetary defense ESA Hera and NASA DART missions aim at demonstrating asteroid deflection capabilities. This will be the first-ever extraterrestrial surface gravimeter experiment on a small body. The present PhD thesis contributed to this novel instrument development, from early prototyping to the final instrument flight model (FM)... 01 00 03 02 01 D502 02 2851 03 1929 06 4a05564a67812511e83ec6ac5cf3e4e7 07 450814 https://pul.uclouvain.be/resources/titles/29303100809320/images/ad16fe8f92f051afbf656271afd7872d/HIGHQ/9782390613299.jpg 17 20230425T0901Z 02 01 D502 02 185 03 125 06 cef353e8dd13fad0726b68cabae165aa 07 23753 https://pul.uclouvain.be/resources/titles/29303100809320/images/ad16fe8f92f051afbf656271afd7872d/THUMBNAIL/9782390613299.jpg 17 20230425T0901Z 06 3052405007518 Presses universitaires de Louvain 01 01 Dilicom PULOUVAIN 06 3052405007518 Presses universitaires de Louvain Louvain-la-Neuve BE 04 01 20230425 11 20230425 01 WORLD 02 01 GCOI 29303100809320 WORLD FR 04 03 06 3012405004818 CIACO - DUC 01 2 20 1 02 00 02 02 STD 02 34.00 01 S 21.00 28.10 5.90 EUR BE FR 04 02 06 3019000200508 Librairie Wallonie-Bruxelles 33 www.librairiewb.com/ http://www.librairiewb.com/ 01 2 20 1 04 00 02 02 STD 02 34.00 01 R 5.50 32.23 1.77 EUR