In a significant advancement for India’s approach to space debris management and satellite servicing, Bengaluru-based startup Aule Space has successfully tested its relative guidance, navigation and control (GNC) technology at the Indian Space Research Organisation’s (ISRO) Rendezvous Simulation Laboratory (RSL). This achievement has resulted in a Technology Readiness Level of 6 (TRL-6), marking a vital step forward in the field of autonomous satellite servicing.

Aule Space claims to be the inaugural private company to access and conduct tests at ISRO’s RSL, where its autonomous navigation system was evaluated under simulated space conditions. This testing is crucial as it aims to tackle some of the most significant challenges within the growing orbital economy, such as rendezvous, proximity operations, and docking (RPOD).

Understanding the Concept of Space Tow Trucks

The increasing number of active satellites in Low Earth Orbit, which currently stands in the hundreds, presents unique challenges. These satellites travel at speeds close to 28,000 kilometres per hour and serve critical functions, including communications, navigation, agriculture, and Earth observation. However, various issues can lead to a satellite becoming inoperative, such as depleted fuel, failed thrusters, or mechanical complications.

Once a satellite ceases to be operational, servicing it becomes extremely complex, especially if it was not originally designed for refuelling or docking. Addressing this issue, Aule Space, founded by Jay Panchal, Nithyaa Giri, and Hrishit Tambi, is developing autonomous spacecraft that will function analogously to tow trucks for satellites. These servicing vehicles are designed to engage with non-cooperative targets, including satellites that may be tumbling uncontrollably or unable to communicate.

Utilising advanced computer vision alongside autonomous navigation, these servicing spacecraft must ascertain the position, velocity, and rotation of their targets before approaching them safely. This operation is akin to attempting to dock with a vehicle travelling at nearly 28,000 kmph while navigating in darkness, without conventional GPS, and potentially dealing with a spinning target.

Future Prospects for Aule Space

Aule Space has successfully secured $2 million in pre-seed funding aimed at advancing hardware development and conducting eventual orbital validation of its technology. The TRL-6 demonstration achieved by the company marks a crucial progression towards validating this innovative system for real-world use.

If the developed systems can successfully operate in orbit, they have the potential to prolong the life of costly satellites, mitigate the generation of additional space debris, and foster a future where failed spacecraft are not simply left in orbit. This technology also represents a significant expansion of India’s private space sector, transitioning from merely developing and launching spacecraft to also servicing and maintaining them in space.

The successful development and implementation of towing technology for satellites could significantly transform satellite management and operational protocols within India’s burgeoning space industry, marking a new era in space exploration and sustainability.

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