3 COMPONENTS OF MAGNETIC WAVES UP TO 4 kHz THE DSP – STAFF/DWP EXPERIMENT 3 COMPONENTS OF MAGNETIC WAVES UP TO 4 kHz COMMON EXPERIMENT PROPOSED BY THE CETP AND SHEFFIELD FOR THE EQUATORIAL SATELLITE ONLY Keith Yearby Bertrand de la Porte TM Hugo Alleyne Nicole Cornilleau-Wehrlin PI SHEFFIELD CETP Bertrand de la Porte – 25/03/2002

THE DSP-STAFF/DWP EXPERIMENT Bertrand de la Porte - March 2002 (IEL connection to be added) STAFF-ant : Search Coil antenna STAFF-amp : Pre-Amplifier STAFF-mwf : Magnetic Waveform STAFF-DWP : Digital Wave Processor STAFF-pwr : Power Supply

DSP-STAFF/DWP Changes w.r.t. CLUSTER BANDWIDTH limitation to reduce the Spin Signal (small RC filters inside the connector) Improvement of the Rad Protection for the Power Supply (+60g) New Design of the Main Electronic Unit STAFF –mwf/DWP Bertrand delaPorte – 25/03/2002

DSP – STAFF/DWP – STATUS & DELIVERABLES   Instrument Cluster name DSP name Status Search Coil Sensor WEC.6 STAFF-ant Cluster EM/Spare, available No EM, no Spare for DSP Pré-Amplifier WEC.7 STAFF-amp Cluster Spare, available Spin Correction needed No Spare for DSP Magnetic Waveform WEC.8/1 STAFF-mwf Cluster Spare, available Wave Processor WEC.9/2 like STAFF-DWP new unit derived from Cluster-DWP An EM will be built Power Supply WEC.11 STAFF-pwr Cluster Spare, available Radiation protection to be improved Possibly EM, no Spare Harness to be manufactured  Integrations with an EM can be performed in Europe but it is not envisaged to send an EM for STAFF- in China Bertrand delaPorte – 25/03/2002

DSP-STAFF/DWP INTERFACE DEFINITION Cluster WEC-EID_B not well adapted to DSP STAFF/DWP EID_B + ECR possible for STAFF –ant, -amp, -pwr NOT for the main electronic box STAFF –mwf/DWP A STAFF/DWP IDS was compiled mid Feb 2002 by Dong Wei Largely corrected by Keith Yearby and Bertrand delaPorte Current issue: 4.0 (?) not complete, but right Configuration Control needed Something like an EID_A is urgently requested !!! Bertrand delaPorte – 25/03/2002

DSP-STAFF/DWP COMMUNICATION Assigned Engineer: DONG Wei no E-Mail – no direct contact But: large number of technical exchange with Lanlan Wll Information obviously exchanged within the Chinese teams Q/R forwarded to Keith with a copy to Roland COMMUNICATION EXISTS but FINAL CONCLUSIONS /AGREEMENTS NOT ALWAYS CLEAR (lack of Control Managment) Bertrand delaPorte – 25/03/2002

DSP-STAFF/DWP COMMUNICATION liste of Questions /Responses in 2001 Q.011022: STAFF – PEACE Interconnections Q.011105: Telemetry, parameters Q.011112: STAFF/DWP characteristics, OBDH i/f, temperature sensors Q.011114: temperature & mechanical characteristics Q.011121: thermal, mechanical, telemetry, harness Q.011130: mechanical, thermal specifications Q.011204: On board monitoring Q.011204: mechanical specifications Q.011212: C.o.G., M.o.I. specifications Bertrand delaPorte – 25/03/2002

liste of Questions /Responses in 2002 Q.020108: STAFF/DWP mechanical specifications Q.020116: Stack mechanical design, boom harness Q.020121: Boom harness, relation with Magson Q.020128: Boom harness, request for LFEW harness Q.020131: Boom harness, responsibilities Q.020211: Common STAFF/DWP IDS – Hua Hzhao, Dong Wei R.020218: STAFF/DWP IDS updates, KHY, BdlP Q.020221: IEL connector, +-6V to DWP, small corrections Q.020224: questions about connectors and parameters R.020226: new revision of the IDS – now issue: 4.0 Q.020228: On board Monitoring Q.020301: request to manufacture the power cable in Europe Q.020310: questions about the Power cable again Q.020313: Control Files for Integrations Q.020318: Request about the boom cable Bertrand delaPorte – 25/03/2002

DSP – STAFF EXPORT REGULATION STATUS LETTER SIGNED BY THE PIs Parts classification completed with a good support from IC and OAW For USA: No ITAR, one component only: A/DC, classified CCL : 3A001.a.2.c One Time Report prepared for BXA to invoque « de-minimis » rule. To be joined in the common request coordinated by IC For EU: No Arms classification, Magnetic Sensor classified as « dual-use » in the EU List: 6A006.b Contacts engaged with the « Service des Douanes » No serious difficulty expected Bertrand delaPorte – 25/03/2002

DSP-STAFF/DWP Outstanding Issues BOOM DESIGN PAYLOAD ACCOMMODATION HARNESS EMC (Grounding Plan requested) THERMAL FUNDING – requested mainly for missions Additionnal funding expected from the CNES for harness AIV/Control Files/TM/TC/HK/Monitoring: presented by DWP Bertrand delaPorte – 25/03/2002

3 BOOMS CONSTRUCTED BY MAGSON - BERLIN DSP-STAFF OUTSTANDING ISSUES BOOM & HARNESS DESIGN 3 BOOMS CONSTRUCTED BY MAGSON - BERLIN REQUEST FROM THE CHINESE FOR PROCUREMENT OF 3 SETS OF CABLE BY STAFF MEASUREMENT AXIS TO BE COORDINATED WITH FGM Bertrand delaPorte – 25/03/2002

DSP-STAFF OUTSTANDING ISSUES Payload ACCOMMODATION – STILL UNKNOWN PREFERRED SOLUTION CURRENT DESIGN Bertrand delaPorte – 25/03/2002