1. The Field Camera Unit Results from technical meeting S. Scuderi INAF – Catania

2. FCU subsystems WIC Meeting, Moscow, 27-30 June 2006

3. Phase A objectives Definition of scientific objectives –Science team constitution –FCU top level requirements definition –Filter passbands definition Analysis of technical (optics, mechanics, electronics) solutions to satisfy system and scientific requirements. Identification of solutions through trade-off processes Development of AIV and GSE principles WIC Meeting, Moscow, 27-30 June 2006

4. Phase B1 objectives Identification of critical elements Analysis of expected performances Finalization of trade off processes Consolidation of the project through feasibility of subsystems Costs assessment WIC Meeting, Moscow, 27-30 June 2006

5. FCU Work Breakdown Structure

6. Cameras: objectives Definition of cameras performances specifications: iterative process with science team Opto-mechanical design of the cameras Definition of the architecture of the detector (science & availability) –Geometric characteristics (dimensions, format, pixel size…) –Opto-electronics characteristics (QE, temporal resolution, dynamical range, operational modes, dark current, read-out noise…) Definition of mechanisms Preliminary design of electronics architecture (detector & mechanisms front-end electronics) Definition of cameras mass, power and thermal budget Definition of interface requirements with main frame (optics, mechanics, electronics, thermal) Preliminary definition of operational modes of the cameras Preliminary definition of calibration requirements: pre-flight & in-flight Telemetry requirements WIC Meeting, Moscow, 27-30 June 2006

7. Cameras: top level requirements CameraSF-UVLF-UVOC Wavelength range110-350nm 250-900nm Focal Ratiof/10f/50 Field of View~5’~1’ Scale0.15”/pixel0.03”/pixel Resolution0.3”0.1” WSO-VIL-INST-CNF-0003 (21 Feb 2006)

8. FCU accommodation

9. FCU constraints definition Available volume:  =650mm h=170mm Power Budget: 90W (TBC) Mass Budget: 30kg (TBC) –2kg per camera (TBC) –10kg Imager case (TBC) –14kg DHU & PSU (TBC) Optical bench temperature: 20°  3°C (TBC) 3 Fixing points on the optical bench Room for LSS detector(s) LSS detectors (TBC)

10. Cameras layout 2 off axis cameras –Pick up mirror –Optics –Mechanisms Shutter Filters wheels Focusing mechanism –Detector Center field camera –UV camera (SF-UV?) –Pick up mirror or central well (decision by end of 2006) –No Optics –Filters (3?) wheel –Detector Calibration Unit (Flat Field)