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Mirror site and services at CESR and CDPP

Mirror site and services at CESR and CDPP. Christian Jacquey, CDPP, CESR, jacquey@cesr.fr Emmanuel Penou, CESR, penou@cesr.fr. SWT Overview 1 UCB, Nov15/16, 2006. What is envisioned at CESR and CDPP. Mirror site of the THEMIS space data: Relay for distributing the THEMIS space data

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Mirror site and services at CESR and CDPP

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  1. Mirror site and services at CESR and CDPP Christian Jacquey, CDPP, CESR, jacquey@cesr.fr Emmanuel Penou, CESR, penou@cesr.fr SWT Overview 1 UCB, Nov15/16, 2006

  2. What is envisioned at CESR and CDPP • Mirror site of the THEMIS space data: • Relay for distributing the THEMIS space data • Backup of THEMIS space data • AMDA: service for Automated Multi-Dataset Analysis • Help for event search • Help for event characterisation and statistics • CL: software for integrated detailed analysis of THEMIS/CLUSTER (and others) data

  3. AMDA / SPAutomated Mutiple Dataset Analysis/ Space Physics C. Jacquey, V. Génot, E. Budnik, R. Hitier http://cdpp.cesr.fr/ THEMIS SWG meeting SSL Nov. 15-16, 2006

  4. Example: event search Old fashion: “paper” search ISEE MAG IMP8 PLA ISEE- electron AE, AL IMP8 MAG IMP-8 AE, AL ISEE-data Current fashion: web CDAWeb SPDF UCLA CAA CDPP And others Event search takes time and energy

  5. AMDA / SP: the goals Automated Mutiple Dataset Analysis / Space Physics Multiple Dataset: the study of the (multi-scale) dynamics of plasma objects requires to perform the integrated analysis of multi-point and multi-instrument data • Automated (or semi-automated) Analysis: help for • Search, characterisation, classification of events • Extensive exploitation of the vast database (statistics) • “historical” studies (example: through solar cycles) • Building catalogues • Building virtual constellations

  6. AMDA, fact sheet • Now, very first prototype (construction started in June 2006 after kind of phase-A) • Built on an existing data system (DD_System, A. Fedorov) • Built in IDL, C, FORTRAN, Javascript • Works on standardised and “simple” data, NetCDF •Includes models (Tsyganenko, Shock, MP, NS, …) •Attempt for using web-services of CDAWeb and the up-coming VxOs • Forum for user feedback • Already in use for scientific studies

  7. Schematic description of the envisioned system Distant database CDAWeb SPDF Distant database CASSINI MAPSKP Distant services Distant services Web-services External interface Local database AMDA Virtual objects User interface System interface Services Virtual objects USER

  8. Demo Derived parameters computation (calculator) Automated and semi-automated search Sub-dataset conditional extraction Distant access to complementary data

  9. An example: search of the events when the cross-tail current is “encircled” by CLUSTER Test: • X1< -10 Re • BX1 * BX2 * BX3 * BX4 > 0 • min([BX1 BX2 BX3 BX4]) < 0 • max([BX1 BX2 BX3 BX4]) > 0 Looking for the time periods when 2 s/c are above the neutral sheet and the 2 other ones are below

  10. Looking for possible X-line with a pair of spacecraft BZ1 * BZ2 < 0 AND VX1 * VX2 < 0 AND BX1/Blob < 0.5 AND BX2/Blob < 0.5

  11. CL Software for detailed analysis of multi-datasets in space physics Developed by Emmanuel Penou (penou@cesr.fr) Scientific specifications by Jean-André Sauvaud THEMIS SWG meeting SSL Nov. 15-16, 2006

  12. CL: fact sheet Multi-missions (CLUSTER, VEX, MEX, DEMETER, ACE, STEREO, …) and multi-instrument (B,E, particles, Waves) SOLARIS, LINUX, WINDOWS IDL and C Visualisation Computation of derived products Export data (CDF, ASCII) (Conditionnal search) Calibration files L1 files L2 files Processing (Internal format CDF, ASCII)

  13. Demo • Predefined plots • Building, editing, manipulating plots • External files. CDF files • High level products: -distribution function -spectrograms in PA, 1/V -partial moments • Remote running

  14. Conclusion: what can be done at CESR and CDPP for the THEMIS community? Mirror site for space THEMIS data Distributing CL, but limited user help Remote running of CL on dedicated machine(s) AMDA for event search, catalogue building, statistics on “simple” THEMIS and complementary data Coupling AMDA event search and CL (and any other softwares or system: CDAWeb, UCB, …) by exporting time-tables

  15. Some examples: • AMDA + CL (or other softwares): • Users produces time-tables on AMDA based on their own defined criteria applied on the content of the data they selected • Time-tables sent to CL • Users browse user-defined plots on the periods of the time-tables and then run detailed analysis on CL • SSCWeb + AMDA: • Users produces time-tables on SSCWeb based on criteria applied on the orbitography and conjonctions. • Time-tables sent to AMDA • Users produces secondary time-tables on AMDA based on criteria applied on the content of the data for the periods of SSCWeb time-tables • Then, these secondary time-tables are exported to detailed analysis softwares or are used inside AMDA for building catalogues, or …

  16. Contacts CL: penou@cesr.fr AMDA: jacquey@cesr.fr http://cdpp.cesr.fr/ forum for feedback on the CDPP services (in french for now)

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