Sat. Dec 2nd, 2023
Overview of Orbital Debris Removal Missions

As the number of satellites and other objects orbiting Earth continues to increase, so does the amount of space debris. This debris poses a significant threat to operational spacecraft and can cause serious damage if not removed. To address this issue, several countries and organizations have launched orbital debris removal missions.

Orbital debris removal missions refer to the process of removing space debris from Earth’s orbit. These missions can be conducted by various means, including robotic arms, nets, harpoons, and tethers. The following are some of the terms commonly used in the context of orbital debris removal missions.

1. Debris Mitigation: Debris mitigation refers to the process of minimizing the creation of new space debris. This can be achieved by designing spacecraft to be less prone to break up, limiting the amount of propellant used, and avoiding collisions with other objects in space.

2. Active Debris Removal (ADR): Active debris removal refers to the process of actively removing space debris from orbit. This can be done by using robotic arms, nets, harpoons, or tethers to capture and remove debris.

3. Passive Debris Removal (PDR): Passive debris removal refers to the process of allowing space debris to naturally decay and re-enter Earth’s atmosphere. This can be achieved by designing spacecraft to have a shorter lifespan or by intentionally de-orbiting spacecraft at the end of their operational life.

4. Space Situational Awareness (SSA): Space situational awareness refers to the ability to monitor and track objects in space. This is essential for identifying potential collisions and for planning debris removal missions.

5. Space Traffic Management (STM): Space traffic management refers to the process of regulating the movement of spacecraft in orbit to minimize the risk of collisions and to ensure the safe and efficient use of space.

6. Low Earth Orbit (LEO): Low Earth orbit refers to the region of space between 160 and 2,000 kilometers above Earth’s surface. This is the most heavily populated region of space and is where most orbital debris removal missions take place.

7. Geostationary Orbit (GEO): Geostationary orbit refers to the region of space approximately 36,000 kilometers above Earth’s surface. This is where most communication and weather satellites are located.

8. Space Debris: Space debris refers to any man-made object in space that is no longer in use or has been abandoned. This includes defunct satellites, rocket stages, and other debris created by human activity in space.

9. Collision Avoidance: Collision avoidance refers to the process of avoiding collisions between spacecraft and other objects in space. This is achieved through careful planning and monitoring of spacecraft trajectories.

10. Space Weather: Space weather refers to the conditions in space that can affect spacecraft and other objects in orbit. This includes solar flares, coronal mass ejections, and other phenomena that can cause disruptions to communication and navigation systems.

In conclusion, orbital debris removal missions are essential for ensuring the safety and sustainability of space activities. These missions require a high level of technical expertise and collaboration between countries and organizations. By developing and implementing effective debris mitigation and removal strategies, we can ensure that space remains a safe and accessible environment for future generations.