Il problema dei detriti spaziali: stato attuale, prospettive e tecnologie

Curiosità. Qualche anno fa ESA ha commissionato uno studio per verificare la fattibilità di “riciclare” i detriti spaziali portandoli sulla Luna.

Dalla presentazione:

Orbit Recycling is changing this. Space debris is transported from the orbit to the Moon and there recycled. E.g. Ariane 5 upper stages are located mainly in GTO & just a small delta-v (1,6km/s) is left to reach the Moon. Since the debris is picked up in orbit, small propulsion units are sufficient for the remaining transport to the moon, which are to launch cost-effectively with European Vega rockets. More than 150 tons of aluminum can be regained from Ariane 5 upper stages alone. Large parts of lunar shelter (for human or robotic missions) can be built with it, e.g. walls, power lines or heat storage systems.

Lo studio:

:scroll: Analysis of space debris recycling potential to supply raw materials for construction on the Moon [pdf]

Ci sono anche un sito (quasi vuoto) e un video.

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Anomalia per ADRAS-J mentre manovrava intorno all’upper stage di un H-2A che ha raggiunto mesi fa. Manovra abortita e per fortuna nessuna collisione.

The fly-around observation involved a complex, autonomous operation to maneuver ADRAS-J around the upper stage client for continuous image-taking, providing more insights into its characteristics and movement. These operations utilized relative navigation data from the Light Detection and Ranging (LiDAR) sensor, along with custom-developed software algorithms for alignment and control. ADRAS-J maintained a fixed distance of approximately 50 meters during the fly-around operations to capture images of the client, facilitating assessment for potential future removal. When ADRAS-J was approximately one-third through the fly-around observation (~120 degrees), an autonomous abort was triggered by the onboard collision avoidance system due to an unexpected attitude anomaly, and ADRAS-J safely maneuvered away from the client as designed.

Comunicato stampa di Astroscale.

Articolo di Space News.

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