In a significant stride towards space sustainability, the Indian Space Research Organisation (ISRO) has announced the successful completion of a zero orbital debris mission. This milestone was reached on March 21, marking yet another achievement in India's space exploration endeavors.
The Polar Satellite Launch Vehicle (PSLV) played a pivotal role in this feat through its Orbital Experimental Module-3 (POEM-3). Following the completion of its primary mission of deploying all satellites into their designated orbits, the terminal stage of the PSLV was repurposed into the POEM-3. This module underwent a controlled deorbiting process, transitioning from 650 km to 350 km above the Earth's surface. Subsequently, the stage was passivated to minimize risks of accidental break-up by removing residual propellants.
One of the key aspects of this mission was the utilization of POEM-3 as a platform for conducting various experiments and technology demonstrations. With a total of nine experimental payloads onboard, including six from Non-Government Entities (NGEs) facilitated through the Indian National Space Promotion and Authorization Centre (IN'SPACe), the mission aimed at advancing indigenous space technologies.
The successful execution of the mission objectives within a month underscores the efficiency and effectiveness of the experimental payloads. These experiments encompassed a diverse array of fields, ranging from electric thrusters to star-tracking systems, showcasing the versatility of the POEM platform.
Noteworthy advancements were incorporated into the POEM-3, including total avionics in a single-chain configuration, industrial-grade components, and new in-orbit navigation algorithms utilizing rate-gyro, sun sensor, and magnetometer data. Additionally, innovative strategies such as controlled dumping of residual propellant were implemented to minimize disturbances during the mission.
The Vikram Sarabhai Space Centre (VSSC) spearheaded the conceptualization and realization of POEM, augmenting the fourth stage of the PSLV. With PSLV-C58/XPoSat marking the third successful mission in the series, ISRO has demonstrated its prowess in orchestrating such complex missions.
Throughout the mission, ISRO's infrastructure played a crucial role, with the spacecraft operations team overseeing payload operations from the mission operations complex (MOX) at ISRO Telemetry Tracking and Command Network (ISTRAC). The ISRO System for Safe and Sustainable Spacecraft Operations Management (IS4OM) monitored and analyzed the orbital decay of POEM-3, ensuring its safe re-entry.
ISRO's commitment to space sustainability is highlighted by its proactive measures to address the growing threat of space debris. With the proliferation of small satellite constellations, the agency recognizes the importance of mitigating space debris to safeguard future space endeavors. To this end, ISRO is developing advanced debris tracking systems, space-object deorbiting technologies, and promoting responsible satellite deployment practices.
As a responsible space agency, ISRO continues to lead by example, setting new standards in space exploration while prioritizing the preservation of orbital environments for present and future generations. The successful completion of the zero orbital debris mission is not only a testament to India's technological capabilities but also underscores its commitment to fostering a sustainable space ecosystem.
Leave Your Comment