International Space Station Orbit Tracker
There’s a growing movement of people who believe that our space agencies are underfunded (see: Penny4NASA) because humanity is just not paying enough attention to our present accomplishments and future plans in space exploration. Well, I know one way to direct attention to something: Point at it.
This is the first prototype of the International Space Station Desktop Orbit Tracker. The pointer is controlled by an ST Microelectronics Nucleo F401, an "arduino-compatible" development board, which performs the orbital propagation and coordinate system transformations using a ported version of the SGP4 model and drives an Adafruit motor shield.
A stepper motor controls the azimuth and a servo controls the elevation. The Station orbits the earth every 90 minutes so the speed of motion is roughly equivalent to a minute hand on a clock: slow enough that it’s not really interesting to watch, but fast enough that it’s in a new place every time you glance over.
I’ve got lots of ideas for extensions of this design, including:
- Trophies for aerospace-related awards
- Keeping track of cubesats in high school classrooms
- Amateur radio antenna mounts
- A children’s museum exhibit where you can select between satellites, planets, and landmarks to point at
- Making a huge one as an outdoor art installation.
For this prototype, though, I just wanted it to simply point: a reminder that the world’s full of incredible things if you just know what direction to look. Thanks for watching and let me know what you think!
The code: https://github.com/gradyh/ISS-Tracking-Pointer
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Resources for learning more:
https://celestrak.com/columns/
https://celestrak.com/software/vallado-sw.asp
https://en.wikipedia.org/wiki/Simplified_perturbations_models
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Music: Doctor Vox - Gold (https://youtu.be/VM-hX0BQf40)
Видео International Space Station Orbit Tracker канала Practical Engineering
This is the first prototype of the International Space Station Desktop Orbit Tracker. The pointer is controlled by an ST Microelectronics Nucleo F401, an "arduino-compatible" development board, which performs the orbital propagation and coordinate system transformations using a ported version of the SGP4 model and drives an Adafruit motor shield.
A stepper motor controls the azimuth and a servo controls the elevation. The Station orbits the earth every 90 minutes so the speed of motion is roughly equivalent to a minute hand on a clock: slow enough that it’s not really interesting to watch, but fast enough that it’s in a new place every time you glance over.
I’ve got lots of ideas for extensions of this design, including:
- Trophies for aerospace-related awards
- Keeping track of cubesats in high school classrooms
- Amateur radio antenna mounts
- A children’s museum exhibit where you can select between satellites, planets, and landmarks to point at
- Making a huge one as an outdoor art installation.
For this prototype, though, I just wanted it to simply point: a reminder that the world’s full of incredible things if you just know what direction to look. Thanks for watching and let me know what you think!
The code: https://github.com/gradyh/ISS-Tracking-Pointer
------------------------------------------------------------
Resources for learning more:
https://celestrak.com/columns/
https://celestrak.com/software/vallado-sw.asp
https://en.wikipedia.org/wiki/Simplified_perturbations_models
-----------------------------------------------------------
Music: Doctor Vox - Gold (https://youtu.be/VM-hX0BQf40)
Видео International Space Station Orbit Tracker канала Practical Engineering
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