1. Cormac Neeson Space Engineering and Technology GERB Project Status 22/03/2004

2. Cormac Neeson Space Engineering and Technology 21th GIST GERB Project Status GERB 4 team and programmatics Status of GERB4 Battery issues Status of GERB 1 and 3

3. Cormac Neeson Space Engineering and Technology 21th GIST GERB4 Project Status Same build standard as GERB 3? Same team as GERB 3

4. Cormac Neeson Space Engineering and Technology GERB 4 Consortium EUMETSAT Funds GERB4 Operates the system AMOS (Belgium) Telescope assembly AEAT (UK) Black body Leicester University (UK) Detector blackening, Signal conditioning and Front end electronics Imperial College (London) PI, Science and Calibration Galileo Avionica (Italy) Descan mechanism Quartz Filter Mechanism RAL (UK) Program Management, System Engineering, AIT, Post-delivery support, Ground Segment, IOU, IEU &EGSE ESA Procures GERB4 For EUMETSAT

5. Cormac Neeson Space Engineering and Technology 21th GIST GERB4 Project Status Status of GERB4 –Project kick-off on Jan 04. –Subcontractors Kicked off.

6. Cormac Neeson Space Engineering and Technology 21th GIST GERB4 Project Status Status of GERB4 –Delivery of subsystems at RAL due end ‘04. –AIT at RAL completed for June 2005 –Completion of calibration Nov. 2005

7. Cormac Neeson Space Engineering and Technology 21th GIST GERB4 Project Status

8. Cormac Neeson Space Engineering and Technology 21th GIST GERB Project Status Battery issues Status of GERB1 and 3

9. Cormac Neeson Space Engineering and Technology 21th GIST GERB Project Status Battery issue Back up battery on GERB 1 found to be flat at Alcatel. Battery design found to be marginal. Agreed that battery will be replaced on GERB 1,3&4

10. Cormac Neeson Space Engineering and Technology 21th GIST GERB Project Status Battery replacement Proposals have been agreed with ESA that enable safe switch down without battery power. New emergency power source is the nominal survival heater supply Relatively simple modifications will be incorporated and the units (1&3) re- qualified.

11. Cormac Neeson Space Engineering and Technology 21th GIST GERB1 Project Status Status of GERB1 –Battery replacement installed –Environmental re-testing completed –Unit due for delivery back to Alcatel end March 04

12. Cormac Neeson Space Engineering and Technology 21th GIST GERB3 Project Status Status of GERB3 –Delivered to Alcatel in June –Integrated onto MSG 3 –Completed thermal vacuum tests. –Will be returned for battery modifications and calibration check Spring ‘04.