​Tough timing: on ISRO PSLV-C61 mission, India’s space programme | Current Affairs | Vision IAS
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​Tough timing: on ISRO PSLV-C61 mission, India’s space programme

19 May 2025
2 min

Challenges in Contemporary Spaceflight

In today's spaceflight endeavors, balancing cost, reliability, and time is complex and imperative. This balance is especially challenging in light of recent failures like the PSLV-C61 mission by ISRO.

PSLV-C61 Mission Overview

  • The mission aimed to launch the EOS-09 satellite into a sun-synchronous polar orbit.

Purpose of EOS-09: 

  • To produce high-quality radar images for civilian uses such as land-use mapping and hydrology studies 
  • To support defense surveillance with its all-weather synthetic aperture radar and a C-band data-link.
  • The mission failure was due to a glitch in the vehicle’s third stage, preventing the satellite from reaching its intended altitude.

Strategic Importance

The failure underscores the reliance on space-based surveillance, especially in military contexts, against the backdrop of regional tensions.

Space-Based Surveillance-3 Programme

  • India plans to launch 52 surveillance satellites under this program.
  • 31 satellites are to be built by the private sector, which still requires ISRO’s oversight.

Operational Challenges

  • Small errors in rocket components can lead to mission failure, impacting both cost and reliability.
  • Time is a pressing factor due to the need for enhanced surveillance and climate data.

Resource Allocation

The PSLV-C61 failure, along with the earlier NVS-02 navigation satellite failure, highlights the need for increased resources to ensure ISRO can meet military and civilian needs in a competitive industry.

Conclusion

The cumulative demands of an expanding launch schedule, R&D, and the human spaceflight program suggest that bolstering ISRO's resources is vital for maintaining its mission capabilities.

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