Topic: Space
Purdue University engineer Keith LeGrand is developing a new method to track satellites in cislunar space. This region around Earth extends beyond the moon's orbit and includes over 300,000 miles of space.
Most current space activities take place close to Earth in what is called near–Earth orbit. However, as more satellites and other infrastructure move beyond this region, it becomes harder to keep track of them.
Purdue University engineer Keith LeGrand is working on a solution. He's developing methods to track the location and movement of objects in cislunar space, which includes an area around Earth that extends just beyond the moon's orbit and encompasses over 300,000 miles of space.
LeGrand's work will help secure and defend U.S. national and economic interests in space. Although there are fewer objects in the cislunar region compared to near–Earth orbit, several factors make it difficult to operate and maintain awareness of objects in this area. These factors include poor visibility from contrast and glare, extreme distances, and unpredictable orbital behavior due to the sun–Earth–moon system.
LeGrand specializes in space situational awareness, which enables intelligent sensing and decision-making in complex orbital environments. His research focuses on better characterizing when an object in cislunar space may have moved or altered course and what that move looks like.
Why It Matters
This technology can help India's growing space program by improving the tracking of satellites and other objects in space, which is crucial for national security and economic interests.
Key Facts
- Purdue University engineer Keith LeGrand is developing a new method to track satellites in cislunar space.
- Cislunar space includes an area around Earth that extends just beyond the moon's orbit and encompasses over 300,000 miles of space.
- LeGrand's work will help secure and defend U.S. national and economic interests in space.
- The new method uses Gaussian mixture approximation to determine uncertainty about an object's position.
Key Terms
- Cislunar space
- An area around Earth that extends just beyond the moon's orbit and encompasses over 300,000 miles of space.
- Gaussian mixture approximation
- A method used to determine uncertainty about an object's position by combining multiple Gaussian models.
Implications
This technology can help India's growing space program by improving the tracking of satellites and other objects in space, which is crucial for national security and economic interests.
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