Starting Student Space Hardware Programs - V A How-To Workshop Starting Student Space Hardware Programs - V Environments @ 30 km July 12-15, 2006 Background image taken at 100,000 feet by a participant from 2004 Workshop
Environments at 30 km: • How high do commercial jet fly? • How high is the ozone layer? • What are the layers of the atmosphere? ~10 km ~20 to 50 km
Environments at 30 km: • Troposphere • Stratosphere • Mesosphere • Thermosphere
Environments at 30 km: Capt. Joe W. Kittinger jumps from a balloon at 102,800 feet Forgot to mention, he exceeded the speed of sound with his body
Environments at 30 km: Temperature varies in all directions as you climb through the different layers of the atmosphere Why? Solar Radiation (UV, IR) - Ozone Absorbs - Surface Heats - Convection
Environments at 30 km: - Temperature can dip to -80°C - Biggest killer of past missions - Easy, repeatable science Burst (30 km) Landing Launch Coldest Tropopause
Environments at 30 km: - You need to do something to keep your systems warm - Colorado history has shown payloads (batteries) begin to fail below -5°C - Hand warmers don’t work well without air (O2) - You will use an active heater
Environments at 30 km: • BalloonSats can do real science at 100,000 feet • Discoveries can be made • Atmospheric studies can be done • Engineering challenges are extreme • Enough unknowns to catch the mind of students
Starting Student Space Hardware Programs - V A How-To Workshop Starting Student Space Hardware Programs - V Questions? July 12-15, 2006 Background image taken at 100,000 feet by a participant from 2004 Workshop