1. Europa Penetrator Design and Survivability Testing IPPW10 Sanjay Vijendran, ESA ESTEC Marie-Claire Perkinson, Lester Waugh, Mike Williams, Astrium Tom Kennedy, University College London (Mullard Space Science Laboratory) Phillip Church, QinetiQ Jeremy Fielding, Rapid Space Technologies Nick Taylor, University of Cambridge (Cavendish Laboratory)

2. 19/06/2013 - 2 Mission Overview

3. Mission Science Goals  Key science focus astrobiology  Primary payloads  Mass spectrometer  Habitability package  Microscope  Sampling system required drill through the shell and collect material for analysis 19/06/2013 - 3 Sampling Mechanism Mass Spectrometer Microscope

4. Penetrator Design 19/06/2013 - 4

5. Delivery System Design  Function to deliver the penetrator to the right location with the right impact conditions  PDS provides:  attitude control  descent timing  large delta-V  Penetrator release  Orbiter interface 19/06/2013 - 5

6. System Verification  Current contract is focussed on maturing technology and reducing risk for penetrator missions  Method applied:  Impact Modelling for penetrator and critical components  Small scale impact testing for critical components  Functional testing for sampling mechanism  Full scale impact testing to demonstrate mechanical system performance and key items 19/06/2013 - 6

7. Small Scale Modelling  Modelling of impact set up at Cavendish  Determine the speeds and materials to be used for the small scale test flyer plates  Aim to reproduce the loading regime experience at full scale  Modelling of small scale test items  Small scale penetrator model  Key electronics  Torlon springs 19/06/2013 - 7

8. Small Scale Model Results 19/06/2013 - 8

9. Full Scale Modelling Date - 9

10. Date - 10

11. Date - 11

12. Date - 12

13. Small Scale Tests  Small scale testing programme carried out at University of Cambridge Cavendish Labs  Following tests carried out:  Batteries  Data loggers  Torlon leaf springs  Drill components  UHF critical components  Scaled shells with Al plugged apertures  Test outcomes largely successful 19/06/2013 - 13

14. Plugged Shell & Test Compartments 19/06/2013 - 14 Plugged Penetrator aperture

15. Torlon Spring Test Results (1) 19/06/2013 - 15

16. Torlon Spring Test Results (2) 19/06/2013 - 16 43 us 128 us 241 us 299 us 385 us 556 us 641 us

17. 19/06/2013 - 17

18. Functional Testing (1/2) 19/06/2013 - 18

19. Functional Testing (2/2) 19/06/2013 - 19

20. Full Scale Tests  Full scale testing of the penetrator planned for July 2013  Tests carried out at the QinetiQ operated MoD test range at Pendine  Rocket sled used to accelerate the Penetrator to a ~300m/s impact velocity  Two firings planned, one into sand, one into ice  Target dimensions 3 x 3 x 6 m 19/06/2013 - 20

21. Full Scale Breadboards 19/06/2013 - 21

22. Next Steps  Complete full scale testing  Review outcomes  Plan for next steps:  Potential follow on activities to be decided  Battery and transceiver technologies to be addressed  Inductive interface for power and data also of interest 19/06/2013 - 22