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Japanese Space Junk Cleanup Mission Progresses Successfully
The ADRAS-J mission undertaken by Astroscale, a Japanese space logistics company, has made significant strides in its efforts to rendezvous, capture, and deorbit space junk. Recently, the spacecraft successfully completed the rendezvous phase by parking next to a second-stage rocket that has been drifting aimlessly in Earth’s orbit since 2009. This endeavor marks a crucial step forward in sustainable space development.
Mission Accomplishments
The ADRAS-J mission achieved a major milestone when it rendezvoused with the wayward second-stage H-2A rocket at a distance of several hundred kilometers. Astroscale’s spacecraft is now preparing to conduct a detailed inspection of the defunct rocket by closely circling it and capturing high-resolution images for assessment.
Currently, over 27,000 orbital debris pieces are being monitored by the Department of Defense’s Space Surveillance Network, with many smaller fragments remaining undetected. To mitigate the growing issue of space debris cluttering Earth’s orbit, Astroscale aims to establish itself as the premier commercial service provider for removing defunct satellites and rocket stages.
Operational Procedures
The ADRAS-J satellite is equipped with advanced capabilities to approach, inspect, and dock with the target spacecraft. By matching the tumble rate of the defunct rocket, Astroscale’s satellite can successfully align and establish a docking connection. Subsequently, the spacecraft’s thrusters will lower the defunct object’s orbit, setting it on a trajectory towards Earth’s atmosphere for safe disposal through controlled reentry and incineration.
Despite the absence of GPS technology on the target rocket, Astroscale’s spacecraft relied on ground-based observations to locate and rendezvous with precision. Following the proximity approach phase, ADRAS-J is poised to conduct a fly-around maneuver to capture detailed images and gather essential data on the condition and movement of the defunct rocket.
Future Prospects
Eijiro Atarashi, the ADRAS-J Project Manager at Astroscale Japan, emphasized the significance of this successful mission advancement in enhancing the company’s capabilities in rendezvous, proximity operations, and space debris removal. By leveraging cutting-edge technology and innovation, Astroscale is committed to promoting the sustainable development of space through effective cleanup and deorbiting initiatives.
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