1. JUpiter Icy Moons Explorer (JUICE)
Status report for
M5 meeting
Olivier Witasse
JUICE artist impression (Credits ESA, AOES)

2. JUICE Scientific Themes

3. JUICE Scientific Themes

4. JUICE Scientific Themes

5. JUICE Spacecraft 3-axis stabilised Dry mass ~2200 kg ; Fuel ~ 2800 kg
Solar array 97 m2
Power at Jupiter ~ 850 W
Fixed High Gain Antenna (X, Ka Bands)
Steerable Medium Gain Antenna (X, Ka Bands)
Data Volume ~ 1.4 Gb per day 5

6. JUICE payload (1)
0.06 6

7. JUICE payload (2) 7

8. JUICE Project current milestones
March 2016: Mission and System Requirements Review successfully completed
2016 (ongoing): Instrument PDRs
December 2016: Start of the spacecraft PDR
 Schedule on track for a launch in June 2022 with Ariane 5 from Kourou 8

9. Mission Profile (current trajectory) Launch June 2022
Interplanetary transfer
(Earth-Venus-Earth-Mars-Earth)
7.6 years
Jupiter orbit insertion
October 2029
2 Europa flybys
October 2030
Jupiter high-latitude phase
Dec 2030-Aug 2031
Transfer to Ganymede
Aug 2031-Dec 2032
Ganymede orbit insertion
December 2032
Ganymede elliptical orbit/5000 km circular orbit
Dec 2032–May 2033
Ganymede 500 km Circular Orbit
May-Sept 2033
End of mission
September 2033 9

12. Trajectory: All orbits viewed from above5 6 1 3 4 2 7 12

15. JUICE objective: Explore Europa recently active zones
Flyby strategy:
In-situ observations
Imaging
Infrared observations
Ice penetrating radar
Altimetry
Will result in :
Characterisation of induced field
Composition and geology of areas of high interest
Subsurface exploration of recently active regions

16. Search for biologically essential elements
JUICE Europa
Composition of the non-ice material, especially as related to habitability
Surface composition: Hydrated compounds, hydrated salts, sulphuric acid hydrate, H2O2 etc…
Search for biologically essential elements
Link with subsurface, and with the (thin) atmosphere
Search for liquid water under the most active sites
Study the active processes
Plumes…
Atmospheric variability 16

17. JUICE objective: Explore Europa recently active zones
Flyby strategy:
In-situ observations
Imaging
Infrared observations
Ice penetrating radar
Altimetry
Will result in :
Characterisation of induced field
Composition and geology of areas of high interest
First subsurface exploration of recently active regions

18. Radio occultations at Europa
19 and 27 January 2033
(with the previous baselined trajectory) 18

19. Summary: JUICE @ Europa
Main goal: Study of active zones
10% of Juice science return
2 flybys in October 2030
Monitoring from distance (plumes, activity etc…)
2 radio-occultations in 2033
Challenges:
Radiation dose
Power
Data volume 19

20. Thank you for your attention