In a routine inspection was on 12. May a stroke on the robot gripping "canadarm2" established at the international space station (ISS). The damaging restricts itself to a small part of the arm boom and the refinement thermal cover, reported the canadian space workers (CSA / ASC) on friday. The results of the ongoing analysis of the incident, however, indicated that the performance of the arm is not impaired. While the robot arm continues as planned, the NASA and CSA will continue to collect data for a weaning analysis.
Collision hazards are taken very seriously, it is called in the message of CSA. About 23.000 objects from the rough of a softball (about 11.5 cm diameter) or gross are persecuted around the clock to recognize potential collisions with satellites or the ISS and to take appropriate measures. Objects that are too small for such monitoring – for example, pay small space scrap particles, rock and dust particles – can become danger.
The CSA titles "lucky strike" ("lucky strike") in connection with "orbital debris" in the title. Whether the hit has actually acted about space scrap or rock particle and the analyzes have confirmed this circumstance, however, is not out of the message. The ISS supporting particles up to about a centimeter diameter stood.
The canadian ISS contribution "canadarm2" has been in use since 2001, has a long of almost 18 meters, a diameter of 35 centimeters and weighs almost 5 tons. Officially, it is referred to as space station remote manipulator system (SSRMS) and used for maintenance and repair work and to operate external facilities and experiments outside the ISS. Room transporters that can not suit the ISS can not be self-rigged, are also from the robot gripping arm "captuous".
"Canadarm2" leads to his planned operation, according to the notification of the CSA, continue. Also pay the recording of the space robot dextre, which in turn should replace a defective remote power control module. The robotic gripping arm moves in this use the DEXTRE developed by canada to the module to be exchanged.
Space scrap is a problem
Space scrap is becoming increasingly a problem – collisions can have devastating consequences. Tote satellites, lost tools or rocket steps move in orbit around the earth and collide with each other. This results in further trumbler parts, the room capsules, the ISS or active satellites dangerous and can be destroyed in the worst case. Swiss researchers have to determine the position of space scrap last year for the first time in daylight. As a result, collisions are recently recognized and corresponding counter probations are initiated.
In july 2020, the currency of the ISS was raised by a good 900 meters to avoid potential stitching of a 30-year-old russian proton rocket. From the internet satellites of starlink (spacex) are already 1400 pieces in the orbit and the US telecommunications supervision has approved the operation of another nearly 3000 satellites in a high of about 570 kilometers. In the future, the risk of collisions was allowed to continue to rise and the space scrap continues to contribute.
The european space agency ESA now wants to actively remove scrap from space and remove one since 2013 in 2025 an ESA rocket stage from orbit.