000006727 001__ 6727
000006727 005__ 20240201122747.0
000006727 0247_ $$2DOI$$a10.1186/s40623-023-01951-z
000006727 037__ $$aSCART-2024-0065
000006727 100__ $$aFilice, V
000006727 245__ $$aPIONEERS: a 6DoF motion sensor to measure rotation and tides in the Solar System
000006727 260__ $$c2024
000006727 520__ $$aObservation of rotation variations and tides provides constraints on the interior properties of celestial bodies. Both can be precisely measured with a 6DoF (Degrees of Freedom) motion sensor placed on their surface. This type of instrument measures rotation rates and linear accelerations in a large frequency band, which includes the frequencies involved in the tides and rotation variations. A novel sensor under development aims to measure rates and accelerations with an amplitude spectral density of $${2}\,\upmu \textrm{rad}\, \textrm{s}^{-1} \textrm{H}\textrm{z}^{-1/2}$$and $${20}\,\upmu \textrm{m}\,\textrm{s}^{-2} \textrm{H}\textrm{z}^{-1/2}$$respectively in its compact version and three orders of magnitude better ($${5}\,\textrm{nrad}\, \textrm{s}^{-1} \textrm{H}\textrm{z}^{-1/2}$$and $${10}\,\textrm{pm}\,\textrm{s}^{-2} \textrm{H}\textrm{z}^{-1/2}$$, respectively) with its high-performance version. Here, we compare these instrument performances with the precision required to measure rotation and tides in order to improve our knowledge of the interior of nine celestial bodies identified as targets for future space missions: Dimorphos, Phobos, Europa, Io, Titan, Enceladus, Triton, the Moon and Mars. Results indicate that Phobos, the Moon, and Mars cannot be investigated with the compact model, but that the interior of the other bodies can be constrained through measurements of rotation rate, and/or centrifugal acceleration, and/or tidal acceleration. We also find that the high-performance prototype instrument is suitable for acceleration measurements for all nine bodies, but not adequate for inferring interior constraints from rotation rate measurements for Triton, the Moon, and Mars. The signatures of the interior in the rotation rate and centrifugal and tidal accelerations also provide scientific requirements for future developments of 6DoF motion sensors for these nine bodies.
000006727 536__ $$aEuropean Union’s Horizon 2020 research and innovation program under grant agreement number 821881/$$cEuropean Union’s Horizon 2020 research and innovation program under grant agreement number 821881/$$fEuropean Union’s Horizon 2020 research and innovation program under grant agreement number 821881
000006727 594__ $$aNO
000006727 6531_ $$aRotation rate
000006727 6531_ $$aLibration
000006727 6531_ $$aTidal acceleration
000006727 6531_ $$aInterior
000006727 6531_ $$aSolar system bodies 6DoF sensors
000006727 700__ $$aLe Maistre, S
000006727 700__ $$aDehant, V
000006727 700__ $$aVan Hoolst, T
000006727 700__ $$aBernauer, F
000006727 700__ $$aGarcia, RF
000006727 773__ $$pEarth, Planets and Space$$v76$$y2024
000006727 8560_ $$fvalerio.filice@ksb-orb.be
000006727 85642 $$ahttps://earth-planets-space.springeropen.com/articles/10.1186/s40623-023-01951-z
000006727 8564_ $$s3894172$$uhttp://publi2-as.oma.be/record/6727/files/s40623-023-01951-z.pdf
000006727 8564_ $$s17427$$uhttp://publi2-as.oma.be/record/6727/files/s40623-023-01951-z.jpg?subformat=icon-180$$xicon-180
000006727 8564_ $$s7089$$uhttp://publi2-as.oma.be/record/6727/files/s40623-023-01951-z.gif?subformat=icon$$xicon
000006727 905__ $$apublished in
000006727 980__ $$aREFERD