‘Mission could not be accomplished’: ISRO chief Narayanan on EOS-09 satellite launch

Sriharikota: PSLV-C61 rocket carried by the Earth’s observation satellite (EOS-09) rises from the first launch platform, in Sriharikota, Sunday, May 18, 2025. After a precise take-off, President V Narayan said that Missy that. | Photo credit: r senthilkumar

The Indian Space Research Organization (ISRO) observed technical problems Duration of the third stage of the EOS-09 satellite launch, due to what the mission could not complete, said the head of Isro V Narayan when addressing scientists after the launch of Sunay.

“Duration The operation of the third stage, we are seeing an observation and the mission could not be achieved. After the analysis, we will return,” said the president of Isro. Isro also published in X on development. “Today the 101st launch was attempted, the PSLV-C61 performance was normal to the second stage. Due to an observation in the third stage, the mission could not be achieved.”

Today the 101 launch was attempted, the PSLV-C61 performance was normal to the second stage. Due to an observation in the third stage, the mission could not be achieved.

– Isro (@isro) May 18, 2025

The PSLV-C-61 flight sequence consists of several stages, starting from the ignition of PS1 and PSOM on the ground to the separation of several sections to finally separate the satellite from the rocket. According to the head of Isro, the problem was detected in the third stage, which is a solid rocket engine that the upper stage with a high thrust after the atmospheric phase of the launch. This stage has a maximum thrust or 240 kilonewtons.

This was the 101st launch of Isro, in which they threw the satellite into orbit of the earth, also known as EOS-09, which was supposed to be fine in a synchronous polar orbit of the sun (Sspo). The plan was that the EOS-09 satellite would be implemented as orbit change propellers (OCT) will be used to reduce the altitude of the PS4 stage. This will be followed by passiveness, a measure aimed at reducing the orbital life of the stage and guaranteeing responsible spatial operations.

EOS-09 is designed to deliver continuous and reliable remote sensing data for use in several operational sectors. In particular, this launch also aligned with the sustainability of the promotion and performing responsible space operations, since the EOS-09 is equipped with fuel to exorbit it to eliminate it safely after the mission.

EOS-09 is an advanced land observation satellite equipped with band synthetic opening radar technology C. You can attach high resolution images of the land surface in all climatic conditions, day or night. This capacity improves the surveillance and management systems of India in multiple sectors.