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Colorado Space Grant Consortium

BalloonSat Overview Class #3. Colorado Space Grant Consortium. Origins:. - Started at Space Grant June 2000 - Was a student at Space Grant 1990-1995 - Programs had advanced - Hard for freshman students to get plugged in - Sink or Swim. Origins:. What if students could get close to space?

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Colorado Space Grant Consortium

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  1. BalloonSat Overview Class #3 Colorado Space Grant Consortium

  2. Origins: - Started at Space Grant June 2000 - Was a student at Space Grant 1990-1995 - Programs had advanced - Hard for freshman students to get plugged in - Sink or Swim

  3. Origins: What if students could get close to space? - Met Edge of Space Sciences (EOSS) in Fall 1996

  4. Origins: - Promise of recovery and 100,000 feet - Price was right - Many launches every year - Some of the same engineering challenges

  5. Origins: With the combination of these items, BalloonSat was born

  6. Origins:

  7. BalloonSat: - BalloonSat is an excellent, low cost platform for “Walk” level student missions to the Edge of Space - A BalloonSat weighing up to 9 kg can reach 30 km (100,000 feet) - Students faced with many engineering challenges - Mach 1, -80 C, near vacuum, impact and burst - No microgravity but BalloonSat can be recovered

  8. Ballooning

  9. Ballooning - Ballooning is inexpensive - Helium (~$800) - Now Hydrogen (~$30) - Balloon (~$300) - You mostly control launch

  10. Ballooning When your balloon and payload ascend into the sky… Every student knows, their experiment is going where no one - except astronauts - has ever gone before

  11. BalloonSat Hardware: 555 Timing Circuit Digital Camera Datalogger & Temp Probe - Digital cameras - Photodiodes - Solar Cells - Geiger tubes - Desiccant - Insulation Batteries Basic Stamp

  12. BalloonSat Construction: Aluminum Construction Foam Core Construction

  13. BalloonSat Construction: - Velcro - Silicon Adhesive and Hot Glue - Aluminum Tape - Insulation - Venting - Condensation

  14. BalloonSats • Easy to attach to balloon • Easy to track and Recovery • Fun for all • You will build one this semester

  15. Black Foam Insulation ¼ and ½ inch Batteries (some) Digital Camera HOBO and Temp Probe 3 half sheets What you will get: - Velcro & hot glue - Aluminum tape - Xacto knives - Flight tube USA flag - Coolers - Multimeter & Wire - Gateway Store

  16. What you will get:

  17. What your team supplies: - Mission - Design - Time & Effort - Build, Test, Document, Fly, Recovery, & Analyze - Hardware order forms (HW #4)

  18. Past Student Experiments: - Atmospheric radiation levels - Solar cell efficiency - Atmospheric soundings - Video imaging - High altitude effects on roaches - Digital sound recording of upper atmosphere - Temperature studies Use Past Team Reports

  19. Launch: - Sites typically in eastern Colorado - Liftoff is 7:00 AM - 90 minutes up, 45 minutes down

  20. Launch: Supported by EOSS - 3000 gram latex balloon - Gaseous Hydrogen - Balloon filling system - Flight string - Radio Transceiver - GPS - Control Systems - Parachute - FAA notification

  21. Launch Review: https://www.youtube.com/watch?v=3PmIpua4btA

  22. Burst: - Altitude variable - One of the most violent moments of the flight - Mach I Series of burst images

  23. Burst:

  24. Burst:

  25. Burst:

  26. Burst:

  27. Burst:

  28. BalloonSats • Interesting burst 28

  29. Launch Review:

  30. Recovery: 30

  31. Recovery: - Begins after launch - Can track real-time - Recovery complete same day

  32. BalloonSat Testing: - Drop Test - Cooler Test - Subsystem Tests - Functional Tests - Mission Sim Tests - Whip Test DO NOT FOCUS ON STRUCTURAL TESTING ONLY

  33. 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

  34. BalloonSats: • BalloonSats are excellent way to do hands-on research • Motivates you to go further • See importance of your education • Prepared to contribute to more complex projects • Have the confidence to take the next step

  35. Questions? T-65 Colorado Space Grant Consortium

  36. Request For Proposals Colorado Space Grant Consortium

  37. What is an RFP? - There is a lot of money out there - There are a lot of ideas - Request For Proposal bring them together - Most satellites were at one time an RFP - Most of you will write or help write a proposal in your job - Now is your time to practice

  38. SEE RFP

  39. To Recap RFP: - Final weight shall not exceed 850 grams - Shall image the Earth or the Balloon during flight, record internal and external temperature - Must have one additional experiment (minimum) - Must follow all the guidelines while writing proposal - Why and How – this is your plan and foundation for project

  40. So... - Take the ideas you came up with individually during the HW#1 - Start with these in your team and expand them during HW #2 - But…Keep It Simple Stupid (KISS Principle) - Start now! - You are writing a proposal not a request for proposal - Proposals Due February 19, 2016 (18 days) - Launch is April 9, 2016 (68 days)

  41. Presentation: Presentation Templates - Final presentation should cover same items in final report

  42. Final Written Report: Design Document Template - You will write you team’s final report throughout the semester with our Design Document revisions

  43. Drawings:

  44. Functional Block Diagrams Colorado Space Grant Consortium

  45. Functional Block Diagram:

  46. Data Line AVR 2MB Flash, Temp, Pressure, XY Accel Onboard 9V 9V 9V Analog #1 9V 9V 1.5V 9V Analog #2 Inputs Analog #3 Data Line Analog #4 3.3V 5.0V 9.0V Outputs Heater Switch Switch Camera 2 GB

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