As The Verge reports (https://www.theverge.com/science/961459/nasa-emergency-save-swift-observatory-katalyst-space-technologies), the Swift Observatory, a space telescope that has been in orbit since 2004, is on the verge of entering the Earth's atmosphere and burning up due to orbital decay caused by solar storms. To prevent this fate, NASA has launched an emergency mission and commissioned the company Katalyst Space Technologies with an innovative solution.
Background: Orbit Threatened by Solar Activity
Swift currently orbits the Earth at an altitude of about 224 miles (approximately 360 kilometers). However, intensified solar storms in recent months have lowered the satellite's orbit, significantly increasing the risk of an uncontrolled reentry into the Earth's atmosphere. Since Swift itself has no onboard propulsion system, it cannot correct its orbit independently.
The Rescue Mission with Link
Katalyst Space Technologies subsequently developed the spacecraft "Link" and launched it on Friday. The goal is to bring Link to the Swift Observatory, dock there, and raise the orbit by about 150 miles (around 240 kilometers). The spacecraft's three-arm system enables it to physically grasp and lift the satellite—a technically demanding operation since both objects orbit the Earth at high speed.
Technical Challenges and Significance
The mission is particularly complex because docking with a non-propelled satellite in orbit requires precise control and coordination. Additionally, the orbit must be adjusted so that Swift returns to a stable position that prevents reentry in the long term.
Bild: SpaceX / Pexels · Pexels · Pexels Lizenz: kostenlos nutzbar, Attribution freiwillig