Graupel-1
High Altitude Balloon
June 19th, 2021
Mission Objectives
Reach 100,000’
Record the flight in HD
Recover the camera
Vehicle Overview
Balloon
Parachute
Payload
1000g Rubber Balloon
3' Nylon Parachute
Payload
Ground Control
Mission Planning
Ascent
Descent
Landing Prediction
Preparation
T-7 Days
- Confirm helium tank rental
- Preliminary flight predictions
- Preliminary weather predictions
- Confirm FAA airspace
- Test all hardware
T-24 Hours
- Pickup helium tank
- Final flight predictions
- Final weather report
- File NOTAM
- Charge devices and batteries
Launch Day
The chase
The hike
APRS
Science!
Learnings
Get more helium than you need
APRS is great...
...but I like redundancy
Bring lots of water
Oversize your parachute
Batteries don't like the cold
Atmospheric science is cool
High altitude ballooning is fun!
Graupel-2
Redundant GPS antenna
GoPro battery upgrade
Radio beacon
Adjusted balloon / helium