Category:Satellites: Difference between revisions

If you're a Stanford student, professor, or affiliate we'd love for you to join the SSI Sats community! Once you've joined our slack messaging hub, join the satellites channel and don't hesitate to reach out!

If you're not affiliated with Stanford but are interested in the team and our project, we'd still love to have you! Please email the team leads Ashley Raigosa (raigosa@stanford.edu), Spencer Wallace (spenwall@stanford.edu), or Theo Makler (theo24@stanford.edu).

Check out the SSI Updated General Event Calendar to stay up-to-date on all of our onboarding events! This is still a work-in-progress so stay tuned for more information :)

One of our main goals of the satellites team is to increase accessibility to space, and while we can have made a ton of progress on this from an engineering standpoint, it's pretty limited unless we get the word out. So we made a website! At saplingsat.org, you'll be able to find everything from our project overview to how to assemble our main flight computer. If you wanna take a deep dive into our software repositories or just brush up on terminology, the website is the place for you :)

Our current mission is SAMWISE, a 2U CubeSat (10cm x 10cm x 20cm rectangle) with a bunch of super cool technologies. Stay tuned.

Building a satellite is definitely not a simple task! There's a lot that goes into each one, so to help streamline things we divide up into subteams. Each of these subteams has a specific task associated with the satellite, and together they work together to make the mission a success! Below you'll find descriptions of each subteam, ways to contact our current subteam leads, and links to their respective Slack channels.

Slack Channel: satellites-adcs

Subteam Lead: Grant Regen

Guidance, Navigation, and Control (Aerospace Engineering/CS/EE/ME) — Learn how to guide our satellite where practical physics and coding meet, control pointing of the system by interacting with the Earth's magnetic field, and unspin the satellite after a rocket shoots it out.

• Begin Here

Slack channel: satellites-avionics

Subteam Lead: Hunter Liu

Avionics (Electrical Engineering) — Learn electrical engineering in space, make your own camera, radio, solar panels, and design your own custom circuit boards (we'll even teach you how to make rave lighting for your room).

• Begin Here

Slack channel: satellites-payload

Subteam Lead: Niklas Vainio

Slack channel: satellites-software

Subteam Lead: Kien Deshpande

• Software (Computer Science) — Learn to program our onboard flight computer and science computer, write machine learning models, and design a full software architecture.
  • Begin Here

Slack channel: satellites-structures

Subteam Leads: Jacob Mukobi, Siolé Mayeski, and Jeremy Merritt

Structures (Mechanical Engineering) — Learn to create the structure of our satellite via aluminum laser-cutting, 3D printing, and computer-aided design (CAD)

• Begin Here

Slack channel: satellites-systems

Subteam Lead: kinda everyone!

• Satellite Systems Engineering — Talk with top space representatives in both government and industry, attend local satellite and space conferences, and learn how to launch a satellite safely and legally 😉. Also, check out the Policy team.

Also referred to as Sapling-2, this was the second of the Sapling series of 1U CubeSats (better descriptions to come + photos!)

Also referred to as Sapling-1, this was the first of the Sapling 1U cubesats (better descriptions to come + photos!)

Sequoia was a planned 3U CubeSat that would demonstrate on-board image classification and processing with updateable machine learning models. The goal of the project was to obtain a high volume of scientifically important imagery for ecological and climatology research. Researchers many times have no need of images saturated with clouds or uninteresting areas—so why not filter them out with convolutional neural networks? We will retrain Sequoia’s deep learning with images taken by the satellite, uplinking improvements. SSI worked on developing deep learning models for forest fire risk assessment and detection and a number of other applications. The mission architecture is user definable with the operator specifying desirable image locations or types and resolutions, and the satellite maximizing delivery of fully open-source images.

Project materials can be found in the Sequoia GitHub.

The Satellites Team developed various Optical Communications technologies, culminating in the launch of POINTR. This was a 1U segment of a 3U CubeSat launched in 2018, but it unfortunately never connected with ground control due to improper orbital insertion from the launch provider.

In addition to projects taken on by the team as a whole, satellites members have worked in Stanford faculty labs to build:

• SNAPS, the Stanford NAno Picture Satellite, a 1/4U imaging CubeSat deployed from the ISS in 2016
• QB50 Discovery, Stanford's submission to an international 50-member CubeSat constellation
• Morgana, a CubeSat designed to study high energy particles in the upper atmosphere. (Cancelled)