Latest news with #PSLV-XL
Time of India
18-05-2025
- Science
- Time of India
ISRO's 101st launch takes off but encounters failure in third stage
ISRO's PSLV-C61 mission, intended to launch the EOS-09 earth observation satellite, faced an anomaly in its third stage, leading to mission failure. The launch, which was ISRO's 101st, experienced normal performance until the issue arose. ISRO is analysing the cause of the failure, while former chairman Somanath emphasises that failures are learning opportunities for future success. Tired of too many ads? Remove Ads Tired of too many ads? Remove Ads The Indian Space Research Organisation ISRO ) on Sunday said its latest mission, launching an earth observation (EO) or surveillance satellite, 'could not be accomplished'. The EOS-09 launched at 5:59 am from the Satish Dhawan Space Centre encountered an anomaly in the third stage of the Polar Satellite Launch Vehicle ( PSLV-C61 ).This was the space agency 101th launch onboard the reliable PSLV , which was taking its 27th using the PSLV-XL, configured to handle heavier on X said, "Today 101st launch was attempted, PSLV-C61 performance was normal till the 2nd stage. Due to an observation in the 3rd stage, the mission could not be accomplished."EOS-09 is a follow-up mission to EOS-04 and the earlier RISAT-1 satellite. It is designed to deliver consistent remote sensing data, especially for operational users needing real-time satellite uses C-band synthetic aperture radar (SAR), enabling it to take high-resolution images under all weather conditions, throughout day and night. Sectors such as agriculture, forestry, disaster management, and defence have immense applications for the data chairman, V Narayanan said in the four-stage vehicle, the performance of the PSLV was normal uptill the second stage. 'The third stage motor started perfectly, but during the functioning of the third stage, we are seeing an observation, and the mission could not be accomplished," he told the media after explained that there was a fall in the chamber pressure of the motor case. 'We are studying the entire performance. We shall come back at the earliest," Narayanan is the third failure of PSLV. The last mission that failed was the PSLV-C39 mission to deploy the IRNSS-1H navigation satellite on August 31, 2017. The mission failed due to a malfunctioning heat ISRO Chairman, S Somanath, who led India to the Moon, said, 'Failure is never defeat, but a formidable tutor.' Acknowledging the challenges of a launch, he wrote his LinkedIn that there are formidable challenges during the development of the third-stage solid motor and 'it's an endeavour marked by multiple failures.'Somanath further wrote, 'Over the years, such challenges have only strengthened our conviction that failure is never defeat, but rather a formidable tutor. Every towering success of ISRO has been forged in the crucible of adversity — shaped by lessons deeply learnt and courageously applied.'
Scroll.in
18-05-2025
- Science
- Scroll.in
ISRO says its earth observation satellite mission could not be accomplished
The Indian Space Research Organisation on Sunday said that its PSLV-C61 earth observation satellite mission could not be accomplished. The mission marked the 63rd flight of the Polar Satellite Launch Vehicle and the 27th using the PSLV-XL configuration. The PSLV-C61 was set to place the EOS-09 earth observation satellite into a Sun Synchronous Polar Orbit, meaning that the satellite would pass over a given area on earth at the same time every day. The satellite carried a Synthetic Aperture Radar payload, which could provide images of the earth in all weather conditions. However, minutes after the PSLV-C61 with the satellite lifted off from the Satish Dhawan Space Centre in Sriharikota at 5.59 am, the space agency said that the mission could not be accomplished due to an 'observation'. 'Today 101st launch was attempted, PSLV-C61 performance was normal till 2nd stage,' the space agency said in a statement. 'Due to an observation in 3rd stage, the mission could not be accomplished.' 'Today from Sriharikota the PSLV-C61/EOS-09 mission was targeted,' ISRO chairperson V Narayanan said. 'The PSLV is a four stage vehicle and the second stage performance was quite normal. The third stage motor started perfectly but during the functioning of the third stage, we are seeing an observation and the mission could not be accomplished.' He said more details would be provided after an analysis. The PSLV has failed on only two earlier occasions – once during its inaugural flight in 1993 and another time in 2017, when the C-39 mission had been unsuccessful, The Hindu reported.
India Gazette
17-05-2025
- Science
- India Gazette
ISRO set to launch its 101st satellite, EOS-09 aboard PSLV-C61 tomorrow
New Delhi [India], May 17 (ANI): The Indian Space Research Organisation (ISRO) is set to launch its 101st satellite, EOS-09, aboard the Polar Satellite Launch Vehicle (PSLV-C61) on Sunday, May 18. This will be the 63rd flight of the PSLV and the 27th using the PSLV-XL configuration. In a post on X, ISRO shared, 'ISRO's 101st launch. PSLV-C61 at a glance. 63rd PSLV flight. Height: 44.5 m | Mass: 321 t, 4 stages | 6 XL boosters. Live from 5:29 AM.' The mission will place the Earth Observation Satellite into a Sun Synchronous Polar Orbit (SSPO), continuing PSLV's track record of dependable performance across various payloads and orbits. After the EOS-09 satellite is deployed, Orbit Change Thrusters (OCT) will be used to lower the altitude of the PS4 stage. This will be followed by passivation, a measure aimed at reducing the stage's orbital life and ensuring responsible space is designed to deliver continuous and reliable remote sensing data for use in various operational sectors. According to ISRO Chairman V. Narayanan, 'The launch is scheduled for 5:59 am from the Satish Dhawan Space Centre in Sriharikota.'The PSLV-C61 rocket has already been moved to the Mobile Service Tower at the launch site for final integration and checks. Former ISRO scientist Manish Purohit said EOS-09 is a follow-on mission to the earlier RISAT-1 satellite. 'This launch is strategically timed,' he said. 'It strengthens monitoring at borders and coasts, particularly with respect to sensitive areas. The satellite can detect ingress or suspicious movement deemed vital in anti-terror operations, especially after the recent Pahalgam terror attack and Operation Sindoor,' he added. Earlier, ISRO Chairman Narayanan had highlighted the importance of space technology for national security and development, stating, 'With the PSLV-C61/EOS-09 mission, ISRO continues to demonstrate its commitment to both technological excellence and the national interest.' IN-SPACe Chairman Pawan Kumar Goenka also stressed the importance of continuously improving space capabilities. ISRO is also preparing to launch the NASA-ISRO Synthetic Aperture Radar (NISAR) satellite aboard the GSLV-F16. NISAR will use dual-band radar systems developed by both NASA and ISRO to track changes in Earth's surface, ecosystems, and natural disasters, providing valuable data on global environmental conditions. EOS-09 is an advanced Earth observation satellite equipped with C-band synthetic aperture radar technology. It can capture high-resolution images of the Earth's surface under all weather conditions, day or night. This capability enhances India's surveillance and management systems across multiple sectors.(ANI)
