000004602 001__ 4602
000004602 005__ 20200124121649.0
000004602 037__ $$aPOSTER-2020-0028
000004602 100__ $$aLe Maistre, Sébastien 
000004602 245__ $$aFirst estimate of Mars precession rate and moment of inertia from data of the Rotation and Interior Structure Experiment (RISE) on the InSight Mission to Mars
000004602 260__ $$c2019
000004602 269__ $$c2019-12-09
000004602 520__ $$aThe Rotation and Interior Structure Experiment (RISE) on-board the InSight mission uses the lander’s X-band (8 GHz) radio system in combination with tracking stations of the NASA Deep Space Network (DSN) to deduce the rotation and orientation of Mars. The determination of precession and nutation of the spin axis are the main objectives of RISE. While measuring nutation precisely requires accumulating data over almost a Martian year, the precession rate can already be determined after one Earth year of operations with better accuracy than today. Here we present the improved precession rate and the associated moment of inertia of Mars. We compare it with the results based on other spacecraft and we discuss the constraints implied by this new value on the interior structure of the planet.
000004602 536__ $$aPRODEX/$$cPRODEX/$$fPRODEX
000004602 594__ $$aNO
000004602 700__ $$aFolkner, William
000004602 700__ $$aRivoldini, Attilio 
000004602 700__ $$aDehant, Veronique M A 
000004602 700__ $$aYseboodt, Marie 
000004602 700__ $$aVan Hoolst, Tim 
000004602 700__ $$aKahan, Daniel S 
000004602 700__ $$aBuccino, Dustin 
000004602 773__ $$tAGU fall meeting, San Francisco, USA
000004602 8560_ $$fmarie.yseboodt@observatoire.be
000004602 85642 $$ahttps://agu.confex.com/agu/fm19/meetingapp.cgi/Paper/574764
000004602 980__ $$aCPOSTER