1. TARANIS a CNES Scientific Mission – C. Bastien-Thiry Workshop on Coupling of Thunderstorms and Lightning Discharges to Near-Earth Space – Corte 2008 TARANIS a CNES Scientific Mission I. Project Progress Status Christophe Bastien-Thiry TARANIS Project Manager - CNES, France

2. TARANIS a CNES Scientific Mission – C. Bastien-Thiry Workshop on Coupling of Thunderstorms and Lightning Discharges to Near-Earth Space – Corte 2008 CNES scientific mission : http://smsc.cnes.fr

3. TARANIS a CNES Scientific Mission – C. Bastien-Thiry Workshop on Coupling of Thunderstorms and Lightning Discharges to Near-Earth Space – Corte 2008 Mission n°1 : DEMETER ■Mission  IONOSPHERIC DISTURBANCES ■Launch : june 2004 Baïkonour. Dniepr CNES MYRIADE scientific missions

4. TARANIS a CNES Scientific Mission – C. Bastien-Thiry Workshop on Coupling of Thunderstorms and Lightning Discharges to Near-Earth Space – Corte 2008 Mission n°2 : PARASOL ■Mission CLIMATOLOGY – ATMOSPHERIC SCIENCE ■Launch dec 2004. Kourou Ariane V CNES MYRIADE scientific missions

5. TARANIS a CNES Scientific Mission – C. Bastien-Thiry Workshop on Coupling of Thunderstorms and Lightning Discharges to Near-Earth Space – Corte 2008 Mission n°3 : PICARD ■Mission SUN OBSERVATION ■Launch June 2009 - Dniepr CNES MYRIADE scientific missions PICARD

6. TARANIS a CNES Scientific Mission – C. Bastien-Thiry Workshop on Coupling of Thunderstorms and Lightning Discharges to Near-Earth Space – Corte 2008 Mission n°4 : MICROSCOPE ■Mission FUNDAMENTAL PHYSICS ■Launch : 2012 CNES MYRIADE scientific missions

7. TARANIS a CNES Scientific Mission – C. Bastien-Thiry Workshop on Coupling of Thunderstorms and Lightning Discharges to Near-Earth Space – Corte 2008 TARANIS a CNES Scientific Mission

8. TARANIS a CNES Scientific Mission – C. Bastien-Thiry Workshop on Coupling of Thunderstorms and Lightning Discharges to Near-Earth Space – Corte 2008 TARANIS CNES WEBSITE http://smsc.cnes.fr/TARANIS

9. TARANIS a CNES Scientific Mission – C. Bastien-Thiry Workshop on Coupling of Thunderstorms and Lightning Discharges to Near-Earth Space – Corte 2008 TARANIS MISSION Description of the TARANIS scientific objectives and the instrument set See the presentation of François LEFEUVRE TARANIS Principal Investigator

10. TARANIS a CNES Scientific Mission – C. Bastien-Thiry Workshop on Coupling of Thunderstorms and Lightning Discharges to Near-Earth Space – Corte 2008 TARANIS : Programmatic milestones Phase 0 studies :Nov. – Dec. 2001 Decision of Phase A :Dec. 2004 Pre Phase A studies :April – July 2005 Phase A studies :Sept. 2005 – May 2006 CPS (Scientific Advisory Committee) recommends TARANIS : April 2007 CNES follows the CPS recommendation Decision of Phase B : July 2007 Kick Off Meeting of Phase B :Sept. 2007 Phase B studies :in progress

11. TARANIS a CNES Scientific Mission – C. Bastien-Thiry Workshop on Coupling of Thunderstorms and Lightning Discharges to Near-Earth Space – Corte 2008 TARANIS : Programmatic milestones CPS of June 13 th, 2008 TARANIS in the highest priority missions set CPS of November, 2008 Final approval for TARANIS mission

12. TARANIS a CNES Scientific Mission – C. Bastien-Thiry Workshop on Coupling of Thunderstorms and Lightning Discharges to Near-Earth Space – Corte 2008 TARANIS : Programmatic milestones But the sky is not so clear!

13. TARANIS a CNES Scientific Mission – C. Bastien-Thiry Workshop on Coupling of Thunderstorms and Lightning Discharges to Near-Earth Space – Corte 2008 TARANIS PHASE B : HOT SPOTS 1. XGRE development 2. Mechanical accommodation 3. Orbit parameters 4. Launch opportunities

14. TARANIS a CNES Scientific Mission – C. Bastien-Thiry Workshop on Coupling of Thunderstorms and Lightning Discharges to Near-Earth Space – Corte 2008 TARANIS PHASE B HOT SPOTS : XGRE development ■The development of the X and Gamma Ray Experiment (XGRE) is not yet granted ■XGRE (with a cooperation of the DNSC) was supported by LANL and since last Sept. by JHU/APL with the hope of NASA funds ■But NASA did not select XGRE through the SMEX MO selection (announcement NASA HQ, June 2008 - Friday 20 th ) ■XGRE instrument is an essential part of the TARANIS payload ■A new organization must be found for XGRE

15. TARANIS a CNES Scientific Mission – C. Bastien-Thiry Workshop on Coupling of Thunderstorms and Lightning Discharges to Near-Earth Space – Corte 2008 TARANIS PHASE B HOT SPOTS : Mechanical accommodation 1. A large set of scientific instruments with different FOV requirements 2. Several alignments constraints between instruments 3. Several deployment devices required 4. Thermal constraints 5. Integration constraints 6. Launcher constraints

16. TARANIS a CNES Scientific Mission – C. Bastien-Thiry Workshop on Coupling of Thunderstorms and Lightning Discharges to Near-Earth Space – Corte 2008 Mechanical accommodation : BASELINE MCP /MCMCP /PH XGRE IDEE IME /BF IME /HF IMM X band antenna +X Sun Sensor S band antenna Star tracker MEXIC 1

17. TARANIS a CNES Scientific Mission – C. Bastien-Thiry Workshop on Coupling of Thunderstorms and Lightning Discharges to Near-Earth Space – Corte 2008 Payload accommodation : BASELINE

18. TARANIS a CNES Scientific Mission – C. Bastien-Thiry Workshop on Coupling of Thunderstorms and Lightning Discharges to Near-Earth Space – Corte 2008 TARANIS PHASE B HOT SPOTS : Launcher constraints ■ CNES mission has to respect the European Launcher Policy (Dec.06) ■ European launcher operators first ■ Launchers taken into account : AR5, SOYOUZ, VEGA ■ Back-up solutions : DNEPR, ROCKOT Up to now, for MYRIADE missions, SOYOUZ (launched from Kourou) as piggy-back is the nominal solution

19. TARANIS a CNES Scientific Mission – C. Bastien-Thiry Workshop on Coupling of Thunderstorms and Lightning Discharges to Near-Earth Space – Corte 2008 TARANIS PHASE B HOT SPOTS : Launcher constraints SOYOUZ ASAP-S Arianespace System for Auxiliary Payload with SOYOUZ From Users Manual draft, May 2008

20. TARANIS a CNES Scientific Mission – C. Bastien-Thiry Workshop on Coupling of Thunderstorms and Lightning Discharges to Near-Earth Space – Corte 2008 TARANIS PHASE B HOT SPOTS : Launcher constraints IMM Star tracker Volume dedicated to the micro-satellites

21. TARANIS a CNES Scientific Mission – C. Bastien-Thiry Workshop on Coupling of Thunderstorms and Lightning Discharges to Near-Earth Space – Corte 2008 TARANIS PHASE B HOT SPOTS : Launcher constraints Next steps ■ Modifications to the accommodation baseline ■ Negotiation with Arianespace ■ Adaptation of the instrument requirements (FOV, alignments, …) ■ Ultimate step : de-scoping negotiations with PIs

22. TARANIS a CNES Scientific Mission – C. Bastien-Thiry Workshop on Coupling of Thunderstorms and Lightning Discharges to Near-Earth Space – Corte 2008 TARANIS PHASE B HOT SPOTS : Orbit parameters Orbit parameters requirements : Quasi polar orbit, altitude between 650 and 750 km, quasi SSO (Sun Synchronous Orbit), local time drift [22h00,2h00] ■As far as TARANIS satellite is not the main payload of the launcher, high probability to be launched on a pure SSO without local time drift ■We have to respect the European Code of Conduct for Space Debris Mitigation → re-entry rules before 25 years ■Propulsive capacity of the satellite will be mainly devoted (95%) to injection corrections and re-entry operations : nearly nothing left to modify the local time or the drift

23. TARANIS a CNES Scientific Mission – C. Bastien-Thiry Workshop on Coupling of Thunderstorms and Lightning Discharges to Near-Earth Space – Corte 2008 TARANIS PHASE B HOT SPOTS : Orbit parameters Orbit parameters question Highly linked to the launch opportunities and the capacity of re- ignition of the last stage of the launcher At the scientific level, necessity to refine or adjust the orbit requirements : local time range. → Definition of which hours are forbidden, acceptable, optimal

24. TARANIS a CNES Scientific Mission – C. Bastien-Thiry Workshop on Coupling of Thunderstorms and Lightning Discharges to Near-Earth Space – Corte 2008 TARANIS PHASE B HOT SPOTS : Launch opportunities

25. TARANIS a CNES Scientific Mission – C. Bastien-Thiry Workshop on Coupling of Thunderstorms and Lightning Discharges to Near-Earth Space – Corte 2008 CONCLUSION ■TARANIS mission is very well supported by the scientific community ■The CNES CPS strongly support the TARANIS mission ■Good scientific and technical international cooperation ■Technical matters has still to be solved (accommodation) ■But, we have to find a way for XGRE instrument → Impact on the planning to be evaluated at the Project Level

26. TARANIS a CNES Scientific Mission – C. Bastien-Thiry Workshop on Coupling of Thunderstorms and Lightning Discharges to Near-Earth Space – Corte 2008 Thank You