Satellite constellation

High school (ages 12+)
Space & Astronomy

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/satellite-constellation

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. How high is the Satellite constellation?LEO: 500-2,000 km; MEO: 2,000-35,786 km; GEO: 35,786 km
2. What is the key technological enablers?Reusable launch vehicles, miniaturized satellite components (CubeSats), advanced propulsion, and inter-satellite communication
3. What is the primary challenges?Space debris management, spectrum congestion, orbital slot allocation, and regulatory frameworks
4. Why do GPS satellites orbit at about 20,000 km?GPS satellites are in medium Earth orbit around 20,000 km so they can reach many places on Earth at once and keep the signal fast enough for accurate positioning.
5. How do internet satellites in low orbit help us get faster internet?Internet satellites in low Earth orbit are only 500 to 2,000 km high, so the signals travel a short distance, making the internet faster and allowing many small satellites to cover the whole planet.

Trilateration: A method of determining position using the distances to three known points.
Latency: The delay before a transfer of data begins following an instruction for its transfer.
Inter-Satellite Links (ISLs): Communication links that allow satellites within a constellation to exchange data directly.
Geostationary Orbit (GEO): An orbit around Earth at an altitude of approximately 35,786 km, where satellites appear stationary.