On the 19^th of June 2010 the ÖWF will launch the fifth stratosphere balloon
“Passepartout V trans”. The arrangements for this event are in full activity. The launch area will be once again the Lustbühel in Graz, Styria, Austria.

This launch will be arranged in remembrance of our long-time friend and enthusiastic co-worker of the balloon project Hannes Mayer, mentioned as “Capitano”.

The payload capsule of “Passepartout V trans” is divided in two modules. The main module is the telemetry and command module (TAC module). It contains the two telemetry transmitter, one Geiger-Mueller counter, the digicam, the camera, the environmental sensors and the recovery systems.
The second module, which will be located 5 meters beneath the TAC module, contains the space proved linear transponder (TRANS module).

The goals of this mission are to launch a linear transponder for the 70cm/2m bands, connecting Earth-Balloon-Earth and Earth-Balloon-Satellite-Earth, to count the radiation in altitudes higher than 20km and to reach an altitude of 40km.
 

Mission Parameter

• Launch date: 19. June 2010, 09:00 local time (CET), expected
• Launch area: Lustbühel, Graz, Styria, Austria
• Balloon: 3000 g sounding balloon
• Balloon size on ground: 2m, Burst diameter: 13 m
• Ballon gas: Helium, 6 m³
• Payload mass: 2,25 kg (including parachute and radar reflector), expected
• Ascent velocity: 200 m/min, expected
• Descent velocity: 300 m/min, expected
• Burst altitude: > 40 km, expected
• APRS Telemetry on 144,8 Mhz an 144,390 Mhz 
• Major components:
  • Instrument package: GPS logger, Environmental data acquisition hardware
  • Digicam
  • Camera for high res pictures
  • Geiger Mueller Counter
  • 2 Automatic APRS transmitter for the 2m band
  • Linear transponder (70cm -> 2m)
  • GSM Track & Track system
  • Globalstar Tracking

This event will be operated in cooperation with the Space Research Institute of the Austrian Academy of Sciences, the Österreichischer Versuchssenderverband ÖVSV and the Austrian Armed Forces.

Update - 04:30pm: 

The flight was successful!
Altitude: over 35 km
The capsule was found intact near "Fladnitz an der Teichalm".

Transponder Info:

Uplink   435.035 - 435.065 MHz LSB/CW
Downlink 145.965 - 145.935 MHz USB/CW
Bake     145.924 MHz CW:     "HI HI DE OE0S UP 435.05 LSB DOWN 145.95 USB"

You find all information about the Transponder Experiment on the website of the
OEVSV.