1. Long Duration Balloon flight from polar regions (Peterzen et al. ESA Symposium 2003 ESA-SP530 – St. Gallen) Workshop ASI sulle Tecnologie ElettroOttiche ASI 14/10/2004 S. Masi Flights from NSBF - USA (from Fairbanks, Alaska) At similar latitudes, flights from Kiruna (Sweden) Svalbard have higher latitude.

2. Long Duration Balloon flight from polar regions (Peterzen et al. ESA Symposium 2003 ESA-SP530 – St. Gallen) Workshop ASI sulle Tecnologie ElettroOttiche ASI 14/10/2004 S. Masi Flights from NSBF - USA (from Fairbanks, Alaska) At similar latitudes, flights from Kiruna (Sweden) Svalbard are at higher latitude (78-80N).

3. Svalbard launch tests Test launch July 24, 2004 Feasibility of LDB flight from Svalbard proved More than 40 days at float IRIDIUM telemetry subsystem for OLIMPO succesfully tested Solar panels/charge control tested Forecasted OLIMPO LDB scientific balloon flight in Summer 2006 Workshop ASI sulle Tecnologie ElettroOttiche ASI 14/10/2004 S. Masi

4. Workshop ASI sulle Tecnologie ElettroOttiche ASI 14/10/2004 S. Masi

5. Workshop ASI sulle Tecnologie ElettroOttiche ASI 14/10/2004 S. Masi

6. Telemetry / TC / data acquisition for Long Duration Balloon Flights Polar flights are not in Line of Sight. Solution: a) Satellite relay telemetry / TC system Iridium TM/TC for selected/compressed data (INGV, G. Romeo/Phys.Dept) b) on-board full storage c) data dump on selected ground stations Workshop ASI sulle Tecnologie ElettroOttiche ASI 14/10/2004 S. Masi

7. Iridium 66 satelliti (6 ricambi già in orbita) a 780 km 100 minuti di periodo orbitale Frequenza comunicazione verso terra (utenza) 1616..1625 MHz Frequenza satellite-satellite 23.18-23.38 GHZ Frequenza satellite-terra 19.4..19.2 GHz Frequenza terra-satellite 29.1-29.3 GHz Velocità di trasmissione per canale 2400 bps

8. rs232 Digital I/O RCM2000 main processor Solar array Charge controller battery Low battery switch power supply adc board Panels temperature Panels voltage Panels current Battery voltage Vessel temperature Arm temperature IRIDIUM data kit IRIDIUM phone antenna Level adapter Main processor monitor Data monitor on-off phone 8 channels igniter driver To and from igniters rs232 GPS receiver scientific adc (unused) antenna Attuale telemetria basata su IRIDIUM

9. U1 U2.1 U2.2 U2.3 U3 U4 U5 U6 U0 Boards description U0 : IRIDIUM Telephone U1 : CPU and GPS Receiver U2.1: Flux Gate (Ch1), unused U2.2: Flux Gate (Ch2), unused U2.3: Flux Gate (Ch3), unused U3 : ADC board U4 : power supply U5 : charge contoller U6 : igniters driver and tester Battery GPS Antenna IRIDUM Antenna Temperature sensor Panels connector Ballast / Release connector Testing connector Flux Gate Magn. conn. Boards 70 cm 10 cm Mechanical assembly PEGASO layout

10. Workshop ASI sulle Tecnologie ElettroOttiche ASI 14/10/2004 S. Masi