SCITECHSS Group

SCIence and TECHnology for Solar System exploration

The Jupiter Icy Moons Explorer (JUICE) mission, led by the European Space Agency (ESA), aims to explore Jupiter and its three largest icy moons: Ganymede, Callisto, and Europa. This mission will study the moons’ surfaces, subsurfaces, and potential habitability, providing valuable insights into the formation and evolution of the Jupiter system and the broader processes that govern the solar system.

Mission Objectives

  1. Characterize Ganymede, Callisto, and Europa: Study the geology, surface processes, and compositions of these moons.
  2. Investigate the Moons’ Subsurface Oceans: Search for and characterize subsurface oceans, assessing their potential habitability.
  3. Understand Jupiter’s Magnetosphere: Explore the complex interactions between Jupiter’s magnetosphere and the icy moons.
  4. Study Jupiter’s Atmosphere: Investigate the planet’s atmosphere, weather, and climate.

Spacecraft and Instruments

The JUICE spacecraft is equipped with a comprehensive suite of scientific instruments designed to achieve its objectives:

  1. JANUS (Jovis, Amorum ac Natorum Undique Scrutator)
  • Function: Optical camera system.
  • Purpose: High-resolution imaging of the surfaces of Jupiter’s moons, mapping geological features and surface compositions.
  1. GALA (Ganymede Laser Altimeter)
  • Function: Laser altimeter.
  • Purpose: Measure the topography of Ganymede’s surface, providing detailed maps of its elevations and identifying potential cryovolcanic and tectonic activity.
  1. MAJIS (Moons and Jupiter Imaging Spectrometer)
  • Function: Imaging spectrometer.
  • Purpose: Study the surface and atmosphere compositions of Jupiter and its moons in the visible and infrared spectra.
  1. RIME (Radar for Icy Moons Exploration)
  • Function: Ice-penetrating radar.
  • Purpose: Probe beneath the surfaces of the icy moons to detect subsurface structures, including potential oceans.
  1. SWI (Sub-millimeter Wave Instrument)
  • Function: Sub-millimeter wave spectrometer.
  • Purpose: Investigate the temperature structure, composition, and dynamics of Jupiter’s stratosphere and the atmospheres of its moons.
  1. PEP (Particle Environment Package)
  • Function: Suite of sensors for particle detection.
  • Purpose: Study the plasma environment around Jupiter and its interactions with the icy moons.
  1. RPWI (Radio and Plasma Wave Investigation)
  • Function: Radio and plasma wave instrument.
  • Purpose: Measure the electric and magnetic fields and the plasma environment around Jupiter and its moons.
  1. 3GM (Gravity and Geophysics of Jupiter and Galilean Moons)
  • Function: Radio science experiment.
  • Purpose: Investigate the internal structure of Jupiter and its moons by measuring their gravity fields.
  1. J-MAG (Magnetometer for JUICE)
  • Function: Magnetometer.
  • Purpose: Measure the magnetic fields of Jupiter and its moons, particularly focusing on Ganymede’s intrinsic magnetic field.
  1. UVS (UV Spectrometer)
    • Function: Ultraviolet spectrometer.
    • Purpose: Study the atmospheres and auroras of Jupiter and its moons in the ultraviolet spectrum.

Mission Timeline

  1. Launch: The JUICE mission was launched on April 14, 2023.
  2. Cruise Phase: The spacecraft will travel to Jupiter, with flybys of Earth, Venus, and Mars for gravity assists.
  3. Jupiter Orbit Insertion: JUICE will arrive at Jupiter in 2031 and enter orbit around the planet.
  4. Moon Flybys and Orbits: The spacecraft will perform detailed flybys of Callisto and Europa before entering a dedicated orbit around Ganymede for extensive study.
  5. Science Phase: The primary science phase will last approximately three and a half years, focusing on detailed observations and data collection.
  6. End of Mission: The mission is planned to conclude after the completion of its scientific objectives, with a potential extension depending on the spacecraft’s health and remaining fuel.

Contributions of SCITECHSS

The Science and Technology for Solar System Exploration Group (SCITECHSS) plays a significant role in the JUICE mission, contributing to the development and operation of key instruments:

  • JANUS Camera System
  • Development and Calibration: SCITECHSS has been instrumental in developing the JANUS camera system, ensuring its high-resolution imaging capabilities. The group has contributed to the optical design, sensor calibration, and data processing algorithms.
  • GALA Laser Altimeter
  • Technology Development: SCITECHSS has worked on the GALA instrument, focusing on the development of the laser altimeter technology, calibration procedures, and data interpretation methods to map Ganymede’s surface.
  • RIME Radar System
  • Instrument Contribution: The group has provided expertise in the design and testing of the RIME radar system, which will penetrate the icy surfaces of the moons to reveal their subsurface structures.
  • Data Analysis and Interpretation
  • Expertise: SCITECHSS will play a crucial role in analyzing the data returned from the JUICE mission, using advanced data processing techniques to extract meaningful scientific insights about Jupiter and its moons.
  • Mission Operations and Navigation
  • Support: The group is involved in mission operations, including navigation planning, instrument operations, and real-time data analysis to support the successful execution of the mission.

Scientific Impact

The JUICE mission promises to revolutionize our understanding of the Jupiter system, providing new insights into the geophysical processes, surface compositions, and potential habitability of the icy moons. By studying these diverse environments, JUICE will help scientists answer fundamental questions about the formation and evolution of the solar system and the potential for life beyond Earth.