Rotation and Interior Structure Experiment

RISE (Rotation and Interior Structure Experiment)
Operator	NASA / JPL
Manufacturer	JPL
Instrument type	Radio science
Function	Constrain the core of Mars
Mission duration	2 years
Began operations	Landing: 26 November 2018
Website	mars.nasa.gov/insight/spacecraft/instruments/rise/
Properties
Mass	7.3 kg (16 lb)
Dimensions	19.8 L3
Power consumption	78 W
Spectral band	X band
Host spacecraft
Spacecraft	InSight Mars lander
Operator	NASA
Launch date	5 May 2018
Rocket	Atlas V 401
Launch site	Vandenberg SLC-3E
COSPAR ID	2018-042A

Rotation and Interior Structure Experiment (RISE) is a radio science experiment onboard InSight Mars lander that will use the spacecraft communication system to provide precise measurements of Mars' rotation and wobble. RISE precisely tracks the location of the lander to measure how much Mars's axis wobbles as it orbits the Sun. These observations will provide new constraints on the core radius and help determine whether the core of Mars is mostly liquid, and which other elements, besides iron, may be present. This study will also help scientists understand why Mars's magnetic field is so weak, as compared to Earth's.

The mission launched on 5 May 2018 and landed on the surface of Mars at Elysium Planitia on 26 November 2018.

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