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Promoting science and technology education through spaceflight and weather balloons.
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About OLHZN
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Weather Balloons
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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
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Podcast Episodes
Weather Balloons
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How to launch a weather balloon
Overview
Atmospheric Weather Balloons
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Radar Reflectors
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How to track NWS weather balloons
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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
Earth Curvature at 30,000 m
Overlook Horizon
2017-12-30T14:35:52-05:00
Earth Curvature at 30,000 m
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