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Promoting science and technology education through spaceflight and weather balloons.

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- About OLHZN
  Who We Are
  In the News
  YouTube Channel
  Podcast Episodes
- Weather Balloons
  Flight Schedule
  Frequently Asked Questions
  What is a High Altitude Balloon?
  How to launch a weather balloon
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  Amateur Radio Tracking
Flights
- Recent Flights
  OLHZN-22 :: UmbraQuest
- 2019 Flights
  OLHZN-21 :: Vegas Knights
  OLHZN-20 :: Just Dustin
  OLHZN-19 :: Polaris
  OLHZN-18 :: Watcher
  OLHZN-17 :: Searing
- 2018 Flights
  OLHZN-16 :: Dawning
  OLHZN-15 :: Space Lobster
  OLHZN-14 :: Solaris
  OLHZN-13 :: Trek
  OLHZN-12 :: Flexor
  OLHZN-11 :: Mist
  OLHZN-10 :: Shrimpy
- 2017 Flights
  OLHZN-9 :: Helios
  OLHZN-8 :: Rectify
  OLHZN-7 :: Duplicity
  OLHZN-6 :: Shredder
  OLHZN-5 :: Continuity
- 2016 Flights
  OLHZN-4 :: Butchy
  OLHZN-3 :: Viewfinder
  OLHZN-2 :: Redemption
  OLHZN-1 :: First Flight
- Flight Information
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  Frequently Asked Questions
Blog
- Article Categories
  All Topics
  Podcast Episodes
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How To
- How to launch a weather balloon
  Overview
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  Lifting Gas
  How to Inflate a Weather Balloon
  Parachutes
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  Tracking Systems
  Camera Information
  Pre-Flight Predictions
  How to track NWS weather balloons
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  Frequently Asked Questions
  Non-Profit Donations
  Join our Discord Community

Search for:

Home
About
- About OLHZN
  Who We Are
  In the News
  YouTube Channel
  Podcast Episodes
- Weather Balloons
  Flight Schedule
  Frequently Asked Questions
  What is a High Altitude Balloon?
  How to launch a weather balloon
  Flight Safety & Regulations
  Amateur Radio Tracking
Flights
- Recent Flights
  OLHZN-22 :: UmbraQuest
- 2019 Flights
  OLHZN-21 :: Vegas Knights
  OLHZN-20 :: Just Dustin
  OLHZN-19 :: Polaris
  OLHZN-18 :: Watcher
  OLHZN-17 :: Searing
- 2018 Flights
  OLHZN-16 :: Dawning
  OLHZN-15 :: Space Lobster
  OLHZN-14 :: Solaris
  OLHZN-13 :: Trek
  OLHZN-12 :: Flexor
  OLHZN-11 :: Mist
  OLHZN-10 :: Shrimpy
- 2017 Flights
  OLHZN-9 :: Helios
  OLHZN-8 :: Rectify
  OLHZN-7 :: Duplicity
  OLHZN-6 :: Shredder
  OLHZN-5 :: Continuity
- 2016 Flights
  OLHZN-4 :: Butchy
  OLHZN-3 :: Viewfinder
  OLHZN-2 :: Redemption
  OLHZN-1 :: First Flight
- Flight Information
  Flight Schedule
  Flight Safety & Regulations
  Flight Statistics
  Frequently Asked Questions
Blog
- Article Categories
  All Topics
  Podcast Episodes
  Weather Balloons
  Spaceflight
  NASA News
  Technology
How To
- How to launch a weather balloon
  Overview
  Atmospheric Weather Balloons
  Lifting Gas
  How to Inflate a Weather Balloon
  Parachutes
  Radar Reflectors
  Tracking Systems
  Camera Information
  Pre-Flight Predictions
  How to track NWS weather balloons
  Flight Safety & Regulations
  Top 5 Questions
Shop
- OLHZN Store
  View All Products
  Featured Items
  Apparel
  Stickers
  Flight Supplies
  Electronics
  Cameras
  Merchandise
  Photo Prints
- Support Our Program
  Patreon Supporters
  Donate to Science Education
  PayPal Giving Fund Donations
  Become a Sponsor
  Join our Discord Community
Contact
- Contact Us
  Flight Safety & Regulations
  Email Us
  Patreon Supporters
  Become a Sponsor
  Frequently Asked Questions
  Non-Profit Donations
  Join our Discord Community

Home
About
- About OLHZN
  Who We Are
  In the News
  YouTube Channel
  Podcast Episodes
- Weather Balloons
  Flight Schedule
  Frequently Asked Questions
  What is a High Altitude Balloon?
  How to launch a weather balloon
  Flight Safety & Regulations
  Amateur Radio Tracking
Flights
- Recent Flights
  OLHZN-22 :: UmbraQuest
- 2019 Flights
  OLHZN-21 :: Vegas Knights
  OLHZN-20 :: Just Dustin
  OLHZN-19 :: Polaris
  OLHZN-18 :: Watcher
  OLHZN-17 :: Searing
- 2018 Flights
  OLHZN-16 :: Dawning
  OLHZN-15 :: Space Lobster
  OLHZN-14 :: Solaris
  OLHZN-13 :: Trek
  OLHZN-12 :: Flexor
  OLHZN-11 :: Mist
  OLHZN-10 :: Shrimpy
- 2017 Flights
  OLHZN-9 :: Helios
  OLHZN-8 :: Rectify
  OLHZN-7 :: Duplicity
  OLHZN-6 :: Shredder
  OLHZN-5 :: Continuity
- 2016 Flights
  OLHZN-4 :: Butchy
  OLHZN-3 :: Viewfinder
  OLHZN-2 :: Redemption
  OLHZN-1 :: First Flight
- Flight Information
  Flight Schedule
  Flight Safety & Regulations
  Flight Statistics
  Frequently Asked Questions
Blog
- Article Categories
  All Topics
  Podcast Episodes
  Weather Balloons
  Spaceflight
  NASA News
  Technology
How To
- How to launch a weather balloon
  Overview
  Atmospheric Weather Balloons
  Lifting Gas
  How to Inflate a Weather Balloon
  Parachutes
  Radar Reflectors
  Tracking Systems
  Camera Information
  Pre-Flight Predictions
  How to track NWS weather balloons
  Flight Safety & Regulations
  Top 5 Questions
Shop
- OLHZN Store
  View All Products
  Featured Items
  Apparel
  Stickers
  Flight Supplies
  Electronics
  Cameras
  Merchandise
  Photo Prints
- Support Our Program
  Patreon Supporters
  Donate to Science Education
  PayPal Giving Fund Donations
  Become a Sponsor
  Join our Discord Community
Contact
- Contact Us
  Flight Safety & Regulations
  Email Us
  Patreon Supporters
  Become a Sponsor
  Frequently Asked Questions
  Non-Profit Donations
  Join our Discord Community

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By |2025-12-29T23:25:01-05:00December 29th, 2025|

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