For a complete explanation on how to calculate the diameter of a balloon as seen through a telescope, check out my brother's YouTube video: youtube.com/watch?v=XmudnEF2_xo
Andres Paris
On Memorial Day weekend of 2015 we launched a high altitude balloon over South Florida. The payload included two GoPro cameras, a Canon Powershot camera, and a barrage of sensors (temperature, humidity, barometric pressure, GPS) running on two Arduino Mega microcontrollers which I had programmed over the preceding weeks leading up to the launch. While we lost one of the GoPros mid-flight and the other one malfunctioned, we still got back amazing footage from the Canon camera and managed to track the entire flight on my brother's 12" Dobsonian telescope. Please like and share!
For a complete explanation on how to calculate the diameter of a balloon as seen through a telescope, check out my brother's YouTube video: youtube.com/watch?v=XmudnEF2_xo
For a complete explanation on how to calculate the diameter of a balloon as seen through a telescope, check out my brother's YouTube video: youtube.com/watch?v=XmudnEF2_xo
updated 11 years ago
For a complete explanation on how to calculate the diameter of a balloon as seen through a telescope, check out my brother's YouTube video: youtube.com/watch?v=XmudnEF2_xo
In the summer of 2018 sixteen kids launched two high altitude balloons over South Florida as part of a science STEM camp at the SFSC.
They launched two of the largest commercially available latex balloons (Totex 3000) and inflated them with a combined 450 cubic feet of Helium.
They spent a week assembling and testing the payloads which included APRS trackers, satellite-based trackers, GSM trackers, GPS data loggers, sensors for internal and external temperature, barometric pressure, and humidity. To top it off they sent a total of 9 cameras to the stratosphere (4 GoPros, 2 Kodak SP360s, 3 Canon Powershots).
The balloons flew nearly 7 miles into the Atlantic Ocean before veering back towards the Peninsula and landing safely just west of Jupiter. What an adventure!
[All original content and footage. All music used is royalty-free purchased through www.pond5.com]
My brother and I launch a high altitude balloons on our own once per year. But this particular launch is special because the balloon and payload were entirely built, assembled, tested, launched, and tracked by middle-school kids with our guidance.
This was part of a STEM program made possible by and in collaboration with the South Florida Science Center, the West Palm Beach Amateur Radio Group, and NexAir of West Palm Beach.
All footage was shot with a GoPro 5 except for ground footage.
All music used is royalty-free music purchased through www.pond5.com
create.arduino.cc/editor/aparis1983/af3c72b5-910f-4b70-a5f9-275c923ae50e/preview
A Trackuino is an Arduino shield that hosts a Radiometric HX1 transmitter (144.39 MHZ at 300mW) and SkyTraq Venus GPS. It transmits at the APRS frequency of 144.39 MHz.
I also built a 1/4 wave ground plane antenna (which you see in the video) out of wire I bought at home depot and an SO239 connector (followed directions from here: http://ccarc.org/_misc/so-239_ant.html and here: http://www.trackuino.org/2010/04/trash-digging-at-its-finest-111-swr-vhf.html).
After fine tuning the antenna I achieved an SWR of 1.0 meaning the antenna has perfect resonance with the frequency. I used an MFJ-269 SWR Meter that I borrowed from the local Amateur Radio Club.


