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

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 :

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

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 Kourou Ariane V CNES MYRIADE scientific missions

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 Dniepr CNES MYRIADE scientific missions PICARD

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

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

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

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

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 Decision of Phase A :Dec Pre Phase A studies :April – July 2005 Phase A studies :Sept – 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 Phase B studies :in progress

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

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!

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

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 Friday 20 th ) ■XGRE instrument is an essential part of the TARANIS payload ■A new organization must be found for XGRE

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

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

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

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

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

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

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

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

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

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

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

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