Aditya-L1: Here's how Europe is helping India in monitoring its maiden solar mission

Produced by: Tarun Mishra
Designed by: Mohsin Shaikh

In a significant development, India's highly ambitious solar mission, Aditya-L1, embarked on its journey to the Sun on Saturday after being launched on a PSLV rocket from Satish Dhawan Space Station in Sriharikota, Andhra Pradesh. What makes this mission even more remarkable is the pivotal role played by the European Space Agency (ESA), offering crucial support to the Aditya-L1's communication system

ISRO and ESA

The Aditya-L1's trajectory to reach Lagrange Point-1 is nothing short of fascinating. Unlike traditional routes, it involves a complex "transfer manoeuvre," mirroring ESA's successful execution for its Euclid telescope at Lagrange Point-2

The Lagrange Point 1 (L1) 

Effective communication is the lifeline of any space mission and ESA is providing deep space communication services that enables Aditya-L1 to transmit vital data, ensuring its safety throughout the mission

The Role of Communication

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The Aditya-L1's success heavily relies on pinpoint orbit determination. Even though Indian Space Research Organisation (ISRO) has developed a cutting-edge orbit determination software for the Aditya-L1, ESA's role in rigorously validating this software adds a layer of reliability to this critical aspect of the mission

Orbit Determination Software

During the months spanning April to December 2022, dedicated teams from both ESA and ISRO worked collaboratively. They evaluated ISRO’s operational strategy for Aditya-L1 and rigorously scrutinised the new orbit determination software

Collaborative Efforts

ESA boasts a rich history of success in space missions. Their involvement in Aditya-L1 not only enhances the mission's capabilities but also signifies the confidence placed in ESA's wealth of experience and expertise in complex space endeavours

ESA's Expertise

Fuel efficiency is paramount in space travel. ISRO operators will execute a "transfer manoeuvre" resembling the one recently conducted by ESA to move its Euclid telescope to L2. This manoeuvre takes place shortly after launch because the fuel needed to achieve the required trajectory increases significantly as time passes

Fuel Efficiency

The validation process of ISRO's orbit determination software requires rigorous procedures including meticulous simulations and testing. These steps are crucial in guaranteeing the software's precision and reliability for the success of the Aditya-L1 mission

Orbit Validation Process

The fruits of this collaboration are evident as ESA and ISRO have refined operational strategies and validity of the software. This partnership has instilled confidence in Aditya-L1's readiness to face the challenges ahead, a testament to international cooperation in space exploration

Successful Collaboration

ESA and ISRO’s combined efforts have set the stage for a mission that promises to unlock new insights into our sun and the mysteries of the cosmos beyond

Mission Ahead