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    Home » SpaDeX Docks Successfully, Paving the Way for Future Indian Space Missions

    SpaDeX Docks Successfully, Paving the Way for Future Indian Space Missions

    Kanika SharmaBy Kanika SharmaJanuary 16, 2025 Space No Comments3 Mins Read
    SpaDeX Docks successfully

    SpaDeX Docks Successfully in Historic Achievement

    Courtesy of ISRO, SpaDeX docks successfully, a groundbreaking achievement. The agency performed the complex manoeuvre days after bringing the spacecraft as close as 3 metres apart.

    Sharing the news on social media platform X, ISRO stated: “Spacecraft docking successfully completed! A historic moment. The SpaDeX docking process involved moving from a 15-metre hold point to 3 metres, initiating docking with precision, completing spacecraft capture, smooth retraction, and rigidisation for stability.”

    This marks a milestone for ISRO, which had earlier missed two scheduled docking attempts on January 7 and 9 due to technical issues. The satellites, launched on 30 December, successfully completed trial attempts at close-range operations on 12 January before achieving full docking.

    Challenges and Delays in the Docking Process

    ISRO initially planned to dock the satellites publicly. However, after two postponements, the agency opted to complete the process before informing the public. A senior ISRO official confirmed that the mission remained “on track” despite the delays.

    On 12 January, ISRO successfully reduced the distance between the satellites to 15 metres and later to 3 metres during a trial. The agency then moved the spacecraft apart to a safe distance for further data analysis before proceeding with the docking.

    The SpaDeX mission encountered delays amid leadership changes at ISRO, as the government appointed V Narayanan as its new director on 7 January. Despite these challenges, the mission showcases India’s advancing space technology capabilities.

    The Significance of the SpaDeX Mission

    The SpaDeX mission serves as a technology demonstrator, paving the way for advanced docking operations in future projects. This capability is crucial for India’s ambitious space plans, including the Chandrayaan-4 mission, which aims to return lunar samples to Earth. The mission will involve multiple docking and undocking operations in both Earth and lunar orbits.

    Additionally, docking technology will play a vital role in building India’s proposed space station, Bharatiya Antariksh Station, expected to launch its first module in 2028. Future human missions to the Moon, slated for the 2040s, will also rely heavily on such advanced techniques.

    In the SpaDeX mission, ISRO launched two satellites, SDX01 (Chaser) and SDX02 (Target), into a low-Earth orbit on 30 December. The spacecraft initially separated by 20 kilometres, gradually closed the distance in stages—5 km, 1.5 km, 500 m, 225 m, 15 m, and finally 3 m—before docking. After docking and rigidisation, the satellites will demonstrate power transfer and then undock to commence their respective missions with a lifespan of up to two years.

    Pioneering India’s Lunar Ambitions

    The successful docking of SpaDeX underscores ISRO’s readiness to meet the challenges of future space missions. The Chandrayaan-4 mission will require advanced docking skills for tasks such as transferring lunar samples to a re-entry module destined for Earth.

    An ISRO scientist explained the process, saying: “Two modules will dock in geostationary transfer orbit before heading to the Moon. One module will land, collect samples, and dock again in lunar orbit before transferring samples to the Earth-bound module.”

    This achievement demonstrates India’s growing capability in space exploration, further solidifying ISRO’s position in the global space community.

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    • Kanika Sharma
      Kanika Sharma

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