Latest news with #isro
The Hindu
18-05-2025
- Science
- The Hindu
PSLV-C61/EOS-09 mission could not be accomplished: ISRO
The Indian Space Research Organisation (ISRO) could not accomplish its 101st launch, the PSLV-C61/EOS-09 mission, on Sunday (May 18, 2025). Minutes after PSLV-C61 with the EOS-09 earth observation satellite lifted off from the Satish Dhawan Space Centre in Sriharikota at 5:59 a.m., the space agency said that the mission could not be accomplished due to an 'observation' in the third stage of the launch vehicle. Some 17 minutes after lift off, the ISRO's PSLV rocket was to place the satellite into a Sun Synchronous Polar Orbit (SSPO). However the mission could not be accomplished. 'Today from Sriharikota the PSLV-C61/EOS-09 mission was targeted. 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. After analysis we shall come back,' ISRO chairman V. Narayanan said. Today 101st launch was attempted, PSLV-C61 performance was normal till 2nd stage. Due to an observation in 3rd stage, the mission could not be accomplished. — ISRO (@isro) May 18, 2025 'Today 101st launch was attempted, PSLV-C61 performance was normal till 2nd stage. Due to an observation in 3rd stage, the mission could not be accomplished,' ISRO posted on X. The EOS-09 is a repeat of EOS-04, designed with the mission objective to ensure remote sensing data for the user community engaged in operational applications and to improve the frequency of observation. The space agency said that the spacecraft is configured using ISRO's RISAT-1 heritage bus, with most of the functional requirements of the Synthetic Aperture Radar (SAR) payload and the bus platform systems derived from the earlier ISRO missions. The satellite weighing 1696.24 kg carries a SAR payload capable of providing images for various earth observation applications under all-weather conditions. The EOS-09 is designed to provide continuous and reliable remote sensing data for operational applications across various sectors and has a mission life of five years. The PSLV-C61 was the 63rd flight of the Polar Satellite Launch Vehicle and the 27th in the PSLV-XL configuration.
The Hindu
18-05-2025
- Science
- The Hindu
PSLV-C61 mission could not be accomplished: ISRO Chief
ISRO on Sunday (May 18, 2025) could not accomplish the launch of an Earth observation satellite onboard a PSLV-C61 rocket after it encountered some anomaly in its third stage, the space agency's Chairman V. Narayanan said. ISRO's trusted Polar Satellite Launch Vehicle (PSLV) is a 4-stage rocket and the first two stages were normal, he said. 'Today we targeted the 101st launch from Sriharikota, the PSLVC61 EOS-09 mission. The PSLV is a four-stage vehicle and up to the second stage, the performance was 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,' Mr. Narayanan said. Today 101st launch was attempted, PSLV-C61 performance was normal till 2nd stage. Due to an observation in 3rd stage, the mission could not be accomplished. — ISRO (@isro) May 18, 2025 EOS-09 is a repeat satellite similar to EOS-04 launched in 2022 that has been designed with the mission objective to ensure remote sensing data for the user community engaged in operational applications and to improve the frequency of observation. The mission's payload, a Synthetic Aperture Radar (SAR) which is inside the satellite is capable of providing images for various earth observation applications under all-weather conditions day and night. This all-weather, round-the-clock, imaging is vital for applications, ranging from agriculture and forestry monitoring to disaster management, urban planning and national security. (With inputs from PTI)
NDTV
18-05-2025
- Science
- NDTV
ISRO's 101st Satellite Mission Takes Flight, Loses EOS-09 Minutes Later
Sriharikota: The Indian Space Research Organisation (ISRO) on Sunday launched its 101st satellite, EOS-09, aboard the Polar Satellite Launch Vehicle (PSLV-C61), but it failed minutes later. The 101st launch was done with PSLV-C61, carrying an Earth Observation Satellite, named as EOS-09, that was to be put in a Sun Synchronous Polar Orbit (SSPO). However, the EOS-09 mission could not be accomplished. According to the ISRO Chief, the PSLV 4-stage vehicle, and performance was normal till the second stage. "We will come back after analysis," he said. The space agency, in a post on X, said, "Today 101st launch was attempted, PSLV-C61 performance was normal till 2nd stage. Due to an observation in 3rd stage, the mission could not be accomplished." Today 101st launch was attempted, PSLV-C61 performance was normal till 2nd stage. Due to an observation in 3rd stage, the mission could not be accomplished. — ISRO (@isro) May 18, 2025 Notably, this launch was also aligned with promoting sustainability and carrying out responsible space operations, as the EOS-09 is equipped with deorbiting fuel for safely disposing it off after the mission. This is the 63rd flight of the PSLV rocket, and the 27th using the PSLV-XL, completing a total 100 launches before May 18. "This mission continues the PSLV's record of delivering reliable performance across a wide range of payloads and orbits," read a statement from ISRO. 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. Earlier on Saturday, Scientist W Selvamurthy congratulated the ISRO scientists, technicians, industries associated with the space organisation for the launch of the satellite. Underlining the satellites' importance, he mentioned that EOS-09 is part of a constellation of satellites which will have applications in griculture, forestry, disaster management, or even for strategic and military applications. "I would like to congratulate the ISRO scientists, technicians, industries associated with ISRO for this important satellite being launched from the Satish Dhawan Space Centre, Sriharikota. It is a very important satellite because it forms a part of a constellation of satellites which can look at Earth and what changes are happening on Earth. For example, agriculture, forestry, disaster management, or even for strategic applications, for military applications, because it's very important to see the borders," Selvamurhthy told ANI. The families and kids who woke up early to see the launch from Satish Dhawan Space Centre at Sriharikota mentioned they were excited to see ISRO's historic launch as they came from far away, however they were disappointed to learn that people were not allowed to witness the launch from the SDSS due to the security concerns arising out of India-Pakistan tensions. "We came from Ranipet, we travelled such a long distance to come here to see the rocket launch site, but unfortunately due to India-Pakistan we can't see it. Our chance is lost this time, but I am very proud to come here, even if I don't get a chance (to see the launch), I feel very excited," a child told ANI. Another tourist expressed disappointment about not being able to see the launch live, but said that he will be coming for the next launch, and expressed his desire to one day become the ISRO chairman. "I came here, I was disappointed that we were not allowed to witness the launch, so we came 150 kilometeres from village, it feels little bad, little disappointing, but next time I will surely try to come again. My aim is to become the ISRO chairman, I am very interested in space science," the student told ANI.
Time of India
18-05-2025
- Science
- Time of India
ISRO launches EOS-09 aboard PSLV-C61, boosting India's surveillance and remote sensing powers
At the break of dawn, a plume of fire lit up the skies above Sriharikota. At precisely 5:59am, the Indian Space Research Organisation (ISRO) launched its 101st space mission, placing the Earth Observation Satellite EOS-09 into a sun-synchronous polar orbit using the PSLV-C61 rocket. Weighing 1696.24 kg and standing 44.5 metres tall, the PSLV-C61 lifted off from the First Launch Pad of the Satish Dhawan Space Centre . This was the 63rd PSLV mission, and the 27th using its XL configuration – a version known for handling heavier payloads. "LIFTOFF! ISRO's 101st launch mission takes flight aboard PSLV-C61," ISRO posted on X. by Taboola by Taboola Sponsored Links Sponsored Links Promoted Links Promoted Links You May Like Arbil: Unsold Furniture Liquidation 2024 (Prices May Surprise You) Unsold Furniture | Search Ads Learn More Undo — isro (@isro) What Is EOS-09 and Why It Matters 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 imagery. Former ISRO scientist Manish Purohit explained the satellite's broader implications. 'This launch is strategically timed,' he said. Live Events '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. The satellite uses C-band synthetic aperture radar (SAR), enabling it to take high-resolution images under all weather conditions, day or night. This makes it a powerful tool for sectors like agriculture, forestry, disaster management, and defence. Once deployed, the satellite's data will be available for users across sectors—agriculture, forestry, water resources, and strategic operations. Its imaging frequency is designed to be higher, offering a steadier stream of earth observation data. For national interest, and responsible space operations The launch is not only a technological feat. It also reflects growing emphasis on responsible space activity. After satellite separation—about 17.6 minutes post lift-off—the spent PS4 stage will undergo orbit-lowering via Orbit Change Thrusters (OCT). This reduces its orbital life, followed by passivation to prevent future explosions or debris. According to ISRO, EOS-09 carries sufficient fuel to de-orbit after completing its five-year mission. This means it will eventually lower itself to a decay orbit, ensuring re-entry into Earth's atmosphere within two years, leaving no lasting debris behind. Former ISRO scientist Manish Purohit remarked, "This launch is strategically timed." He added, "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." Part of a constellation, part of a future Indian scientist Dr W. Selvamurthy acknowledged the larger impact of this mission. 'I would like to congratulate the ISRO scientists, technicians, industries associated with ISRO for this important satellite being launched tomorrow, early morning at 6 a.m., from the Satish Dhawan Space Centre, Sriharikota. It is a very important satellite because it forms a part of a constellation of satellites which can look at Earth and what changes are happening on Earth. For example, agriculture, forestry, disaster management, or even for strategic applications, for military applications, because it's very important to see the borders…' Echoing the sentiment, ISRO Chairman V. Narayanan said, "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 underlined the need to constantly evolve space capabilities. Meanwhile, ISRO is preparing for another significant mission—NISAR (NASA-ISRO Synthetic Aperture Radar)—scheduled to launch aboard GSLV-F16. A collaboration with NASA, NISAR will monitor changes in Earth's surface and ecosystems and help track natural disasters, reinforcing India's growing role in global climate and environmental science. EOS-09 is powered by 2.4 kW and built for a five-year lifespan. It promises not only sharper eyes in the sky but also a stronger, more data-rich foundation for India's evolving space ambitions. From climate monitoring to defence surveillance, the satellite's reach extends across fields that touch every citizen. And so, in the early morning quiet of Sriharikota, another chapter in India's space story was written—one that looks downward to understand the Earth better, and forward to do so more responsibly.
India.com
17-05-2025
- Science
- India.com
Countdown Begins For ISRO's 101st Space Launch PSLV-C61 Mission
The 12-hour countdown for the launch of Indian Space Research Organisation's (ISRO) earth imaging satellite Polar Satellite Launch Vehicle (PSLV) rocket commenced on Saturday, in Sriharikota, tweeted ISRO. The lift-off for the PSLV-C61, carrying Earth Observation Satellite (EOS-09) satellite for earth imaging, scheduled to take place at 5.59 a.m. from the First Launch Pad (FLP) at the Satish Dhawan Space Centre on May 18, will also mark the 101st mission for the agency. Taking to the X ISRO tweeted, "T-12 hours to ISRO's 101st space launch PSLV-C61 is mission-ready..." T-12 hours to ISRO's 101st space launch PSLV-C61 is mission-ready 18 May 2025 | 5:59 AM IST | FLP, SDSC SHAR Live from 5:29 AMhttps:// More information: #Countdown #PSLVC61 — ISRO (@isro) May 17, 2025 PSLV-C61 marks the 63rd flight of the Polar Satellite Launch Vehicle and the 27th using the PSLV-XL configuration. This mission continues the PSLV's record of delivering reliable performance across a wide range of payloads and orbits, said ISRO. The agency further stated that after EOS-09 is deployed, Orbit Change Thrusters (OCT) will be used to reduce the altitude of the PS4 stage, followed by passivation to limit its orbital life — a step aligned with responsible space operations. Weighing around 1,696.24 kg, the EOS-09 satellite has a mission life of 5 years and includes deorbiting fuel for safe post-mission disposal. The mission will place the Earth Observation Satellite into a Sun Synchronous Polar Orbit (SSPO). The EOS-09 (RISAT-1B) is a follow-on to the RISAT-1 satellite which is equipped with similar configuration. It complements and supplements data from the Resourcesat, Cartosat and RISAT-2B Series satellites. The EOS-09 satellite is a cutting-edge Earth observation satellite designed to bolster India's space-based surveillance capabilities. Fitted with advanced C-band synthetic aperture radar technology, it can capture high-resolution images of the Earth's surface regardless of weather conditions or time of day. This capability enables effective monitoring and management across various sectors. Earlier, Union Minister Jitendra Singh hailed this mission and tweeted "We're now one step closer to liftoff on 18 May..." Watch this incredible timelapse of PSLV-C61 / EOS-09 as it rolls from the Payload Integration Facility (PIF) to the Mobile Service Tower (MST) at SDSC-SHAR, Sriharikota — a crucial step in #ISRO's 101st launch mission. Each frame captures the precision, teamwork & engineering… — Dr Jitendra Singh (@DrJitendraSingh) May 16, 2025 Meanwhile, ISRO Chairman V. Narayanan stressed the critical role of satellite technology in national security and governance, stating, "With the PSLV-C61/EOS-09 mission, ISRO continues to demonstrate its commitment to both technological excellence and the national interest."
