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SMOS Project Status

SMOS Project Status. 1. Payload 2. Platform 3. Satellite 4. Launcher 5. Flight Operations Ground Segment 6. Data Processing Ground Segment [N. Wright] 7. Processor developments [S. Delwart] 8. Calibration Expertise Center (CEC) 9. SVRT [S. Delwart] 10. Other Issues. 1. Payload (1).

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SMOS Project Status

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  1. SMOS Project Status 1. Payload 2. Platform 3. Satellite 4. Launcher 5. Flight Operations Ground Segment 6. Data Processing Ground Segment [N. Wright] 7. Processor developments [S. Delwart] 8. Calibration Expertise Center (CEC) 9. SVRT [S. Delwart] 10. Other Issues

  2. 1. Payload (1) • All MOHA bits & pieces delivered, being successively integrated. • CCU provisionally delivered, to proceed with electrical integration (but see below) • CMNs: 6 units delivered and integrated (but see below) • EMC filters for CMN harness procured / integrated / inspected • LICEF units transferred from STM used for antenna pattern measurements at DTU to FM (but see below) • X-band chain, Pyrobox, all units of CAS delivered and integrated • Most harness and thermal control (thermistors, thermostats, heaters) integrated.

  3. 1. Payload (2) Problem case 1: CCU Between the ICU part (Astrium) and the MOHA part (Contraves), there is a board which has to make ~ 750 connections! This is done by so-called “interposer” connectors. 1 connection failed during shock test, leading to detailed investigations about board quality, connector qualification history, and mechanical configuration. Present state: New board under procurement, new (mechanically symmetric) connectors under procurement, mechanical design reworked. Once assembled / tested at board level, CCU will be returned to Astrium for replacing the board and completing mechanical test programme (shock & vibration) To be completed before end 2006.

  4. 1. Payload (3) Problem case 2: CMN Series production of CMNs (total of 13) is running late. All manufacturing / board assembly complete, box level test / acceptance programme running. From the 6 completed CMNs, 2 showed failures: • 1 local oscillator board showed anomalous locking behaviour (locking on side-tune when upwards sweeping frequency) • 1 local oscillator board did not lock at all. Investigations are ongoing (component failures? Spurious contact to ground? Difference sine wave / square wave? etc.) Completion of CMN deliveries expected by end November 2006.

  5. 1. Payload (4) Problem case 3: LICEF / NIR Antennas During the antenna pattern measurement campaign, one LICEF antenna showed abnormal behaviour in X pol. Replacing with the spare, the spare showed similar behaviour. Cause seems to be a poor board quality (insufficient copper thickness in the through-holes) combined with poor workmanship of connection soldering (insufficient solder fillet) leading to cracks in the connection under mechanical stress. Initiated course of actions: • re-procurement of patch boards • re-manufacturing of first antenna batch of 18 • inspection of all other antennas

  6. 1. Payload (5) Low level / application software acceptance tested on EM Electrical test procedures are being coded for automatic execution on the EGSE EGSE not completely stable (mainly for data storage / analysis issues) MGSE for TV and IVT being produced, test procedures generated Problem: availability of Large Space Simulator for TV test (blocked by ATV and Herschel projects, accumulating delays) Conclusion: P/L level test programme not expected to start before early 2007.

  7. 2. Platform Proteus platform for SMOS Mission completed and formally delivered. “BV 2”test for tailored software to commence in November, but depends on: • Corot launch • PL - EM availability SMOS Platform

  8. 3. Satellite • Satellite CDR successfully completed 3 issues: • Clearance between arm deployment & solar Array • Battery management • Failure detection & isolation optimisation • AIT planning (incl. need P/L support) completed. Total duration (incl. realistic allocations for holiday periods etc.) 9 month incl. margin. Start date depends on completion of P/L delivery. No major interference from other PROTEUS – based projects expected (Corot, Jason 2)

  9. 4. Launcher • Injection scenario modified such that PROBA 2 is injected below SMOS • Final Mission Analysis meeting under preparation (thermal analysis, ICD updates, …) • Launch site survey delayed until March 2007 • Joint Operations Plan: baseline is separate transport / preparation of PROBA 2 • Launcher adaptor manufacturing completed, waiting for arrangements with Krunichev for fit-check • GOCE FMAM December 2006 with SMOS participation (mainly to verify Cryosat lessons-learnt implementation)

  10. 5. Flight Operations Ground Segment • CNES SOGS adaptation proceeding nominally: • TM/TC data base, PRESTO simulator • G2 (flight dynamics) • LEOP scenario definition • Payload operations facility PLPC: first version delivered and installed (at ESTEC and at ESAC), evaluation / familiarisation ongoing • Payload simulator “MIRASIM” delivered and used • First version of mission planning facility (SPGF) delivered and under evaluation. • Flight operations procedures (payload on / off, calibration timelines) are being developed and verified.

  11. 6. Data Processing Ground Segment see dedicated presentation by N. Wright

  12. 7. Processor Development see dedicated presentation by S. Delwart

  13. 8. Calibration Expertise Center (1) A collection of tools and knowledge-full people to look at the quality of the mission output. Developments: • SMOS Product Quality Facility (SPQF): automatic monitoring of functional product parameters (processing quality, aux data availability, limit checks, …) • Monitoring facility (MF): automatic generation of parameter plots, statistics, etc. which enable skilled people to assess quality and stability of products and parameter fields • Data viewer • “Interactive analysis tools” (IAT): collection of specialised tools to assess specific aspects of the mission.

  14. 8. Calibration Expertise Center (2) GS Organigramme

  15. 8. Calibration Expertise Center (3) Status: SPQF: part of DPGS development. Functions to be defined by industry MF: based upon tool by Deimos (Sp) developped for Cryosat. Generic functions by industry, specific functions ESTEC in-house. First set of required functions defined for level 1, level 2 to follow (~ 4 months from now) DV: development under way IAT: generic ideas expected from science community / Cal/Val AO participants. After demonstration of the principle and tuning of algo / parameters, handover to CEC expected. Examples: RFI monitoring, Ruf method, Dome C comp., …

  16. 9. SVRT see dedicated presentation by S. Delwart

  17. 10. Other Issues • SEPS: “SEPS GS” for generation of representative X-band data • NRT Service: DOSTAG / PB-EO are discussing since more than one year the possibility of a NRT upgrade for SMOS • Mission / System Key Point (~Feb 07): review of preparation status for system integration and validation • Commissioning phase definition: not much progress • Preparation for phase E are starting slowly: • Nomination of a Mission Manager • Level of staffing at ESAC / functions • Phase E management plan and available budgets.

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