Latest news with #Nisar
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Business Standard
29 minutes ago
- Science
- Business Standard
Nasa-Isro earth observation satellite NISAR all set for launch today
Aimed at boosting ties between India and the United States on space exploration, India is geared up to launch an earth observation satellite jointly developed by Isro and NASA on Wednesday. Eyeing to study the planet Earth as a whole from a Sun-synchronous Orbit, the Nisar satellite is a combination of human skills and exchange of software and hardware between the two space agencies for over a decade. Nisar, an acronym for NASA-Isro Synthetic Aperture Radar satellite, weighing 2,393 kg is expected to fly on a 51.7 metre tall, three stage, GSLV-F16 rocket at a prefixed time of 5.40 pm from the second launch pad at this spaceport situated about 135 km from Chennai on Wednesday. The countdown for the launch commenced at 2.10 pm on July 29 and has been progressing, Isro said, and the mission would be classified into launch phase, deployment phase, commissioning phase and science phase. "GSLV-F16/Nisar Today's the day! Launch Day has arrived for GSLV-F16 and Nisar. GSLV-F16 is standing tall on the launch pad. Nisar is ready. Liftoff today," Isro said in a social media post on Wednesday. While the partnership between Isro and NASA is first of its kind, it is also the first time for a GSLV rocket to carry a rocket destined to Sun-synchronous Polar Orbit (SSPO) unlike Polar Satellite Launch Vehicles. The Bengaluru-headquartered Isro has sent similar missions in the past (Resourcesat, RISAT) to study the Earth but were "operationally focused" on Indian territory. The Nisar mission is targeted to study the Earth and would provide information to global scientific fraternity, Isro said. The satellite would be able to study seasonal changes on forest dynamics, mountain shifts, glacier movements in the Himalayas and Antarctica, North and South poles. Nisar mission's primary objectives are to study land and ice deformation, land ecosystems, and oceanic regions in areas of common interest to the United States and Indian science communities. Isro said the complex payloads and mainframe systems in the mission have been designed, developed, and realised over a period of 8 to 10 years. Scientists from both space agencies were involved in extensive collaborations and the Nisar satellite carries dual frequency -- two L Band provided by NASA and S-Band provided by Isro for the Synthetic Aperture Radar (SAR) enabling the collection of a vast amount of data. The S-Band SAR and L-Band SAR were independently developed, integrated and tested at Isro and Jet Propulsion Laboratory, NASA, United States, respectively, Isro said. After reaching the initial orbital conditions on Wednesday, scientists would engage in 'commissioning' the satellite. The first 90 days after launch would be dedicated to commissioning or to perform In-Orbit Checkout, the objective of which is to prepare the observatory for science operations, Isro said. The dual-band Synthetic Aperture Radar employs an advanced, SweepSAR technique, which provides high resolution and large swath imagery. Nisar would image the global land and ice-covered surfaces, including islands, sea-ice and oceans, every 12 days. The spacecraft and the launch system are developed by Isro while the L-band Radar system, high speed downlink system, GPS receiver are delivered by NASA. Isro is responsible for the satellite and commanding operations, while NASA would provide the orbit manoeuver and RADAR operations plan. Nisar mission would be aided with ground station support of both the two space agencies for downloading the acquired images, which, after the necessary processing, would be disseminated to the user community. GSLV-F16 is the 18th flight of Geosynchronous Satellite Launch Vehicle and the 12th with indigenous cryogenic stage. It is also the 102nd launch from Sriharikota. The life of the Nisar Mission is 5 years, Isro said. (Only the headline and picture of this report may have been reworked by the Business Standard staff; the rest of the content is auto-generated from a syndicated feed.)
Hans India
2 hours ago
- Science
- Hans India
ISRO and NASA Set to Launch Pioneering Nisar Satellite via GSLV-F16 Rocket
Sriharikota: In a groundbreaking development, the GSLV-F16 rocket is set to launch the Nisar satellite from Sriharikota at 5:40 PM today. This ambitious project, a collaboration between the Indian Space Research Organisation (ISRO) and NASA, marks the debut of the world's first dual-frequency radar satellite. Nisar will employ advanced L-band and S-band radar technologies to capture high-resolution images of the Earth under all weather conditions, both day and night. The satellite is expected to revolutionise disaster management by detecting and providing critical data on earthquakes, floods, rainfall, tsunamis, landslides, and volcanic eruptions. Once in orbit, Nisar will offer comprehensive scans of the Earth every 12 days, monitoring various terrains including forests, plains, mountains, and water resources. The satellite, which weighs 2,393 kg, will be positioned in low Earth orbit at an altitude of 743 km. Equipped with a 12-meter diameter antenna, Nisar's dual-frequency synthetic aperture radar will combine data from both radar types, enhancing its capability. The satellite's services will be freely available to governments and scientists worldwide. In anticipation of the launch, ISRO Chairman Narayanan and his team visited Sri Chengalamma temple in Sullurpet, Tirupati district, to pray for success. Narayanan expressed confidence that the Nisar satellite will bolster India's stature on the global stage, stating, "With the Nisar launch, India will once again fly the flag of victory.'
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First Post
2 hours ago
- Science
- First Post
Nisar launch: Why Nasa-Isro joint satellite is a big deal
Nasa-Isro Synthetic Aperture Radar, or Nisar, will liftoff onboard the Indian space agency's GSLV Mk-II rocket from Sriharikota on Wednesday (July 30). Jointly developed by Isro and Nasa, it is the first major earth-observing satellite with two frequencies — L-band and S-band. Here's what makes it special read more Nisar is built at a cost of over $1.5 billion. X/@isro Nisar, one of the most expensive earth-observation satellites, is set to be launched on Wednesday (July 30). The satellite will liftoff at 5.40 pm from the Satish Dhawan Space Centre in Sriharikota, Andhra Pradesh. Jointly developed by the Indian Space Research Organisation (Isro) and the National Aeronautics and Space Administration (Nasa), the Indian space agency's GSLV Mk-II rocket will inject the Nisar satellite into a 747 km sun-synchronous polar orbit. Here's a look at why the mission is significant. STORY CONTINUES BELOW THIS AD What is Nisar? Nisar, which stands for Nasa-Isro Synthetic Aperture Radar, weighs 2,392 kg. It is the first major earth-observing satellite with two frequencies — Nasa's L-band and Isro's S-band. The dual-band radar will equip the mission to observe changes more accurately than any other satellite. 'Each system's signal is sensitive to different sizes of features on Earth's surface, and each specialises in measuring different attributes, such as moisture content, surface roughness, and motion,' according to Nasa. The satellite, which costs over $1.5 billion, was built in a decade. It features a 12-meter unfurlable gold mesh antenna, the largest of its kind in low-Earth orbit, integrated into Isro's I‑3K spacecraft bus. This platform contains controls handling command and data, propulsion, and attitude, along with 4 kW of solar power. Built across continents in phases, NISAR is a result of global teamwork and tech. NISAR came together through years of integration and testing. 2 Nations, 1 Mission. NISAR's build journey is a story of teamwork. Milestone of Firsts ✅ First dual-band radar satellite ✅ First… — ISRO (@isro) July 25, 2025 How Nisar will work The unique Earth imaging satellite will enter the sun-synchronous polar orbit at 747 km altitude and inclination of 98.4 degrees after launch. However, Nisar will not start capturing images immediately. Instead, the first 90 days will be spent by the satellite on commissioning, or In-Orbit Checkout (IOC), which will prepare it for science operations, according to Isro. STORY CONTINUES BELOW THIS AD The synthetic aperture radar (SAR) of the satellite will bounce radar waves off the planet's surface, measuring the time it takes for the signal to return and how its phase changes, reported The Hindu. Nisar will observe the Earth in L-band SAR (1.257 GHz), which uses longer-wavelength radiowaves to monitor changes under thick forests and soil and deformations on the ground. The S-band SAR (3.2 GHz) will utilise shorter-wavelength radiowaves to capture surface details, including crops and water surfaces, as per the newspaper. The satellite will observe the Earth with a swath of 242 km and high spatial resolution, using SweepSAR technology for the first time, as per Isro. Nisar will scan the globe every 12 days, providing detailed images of the Earth's surface. The dual radar payload on the satellite employing SweepSAR technology will ensure very high-resolution data, in all weather conditions, and during the day and the night. Why Nisar is a big deal The Nisar mission signals the growing partnership between India and the US in the space sector. 'This mission is not just about a satellite launch — it is a moment that symbolises what two democracies committed to science and global welfare can achieve together. Nisar will not only serve India and the United States but will also provide critical data for countries around the world, especially in areas like disaster management, agriculture, and climate monitoring,' Union Minister for Science and Technology Dr Jitendra Singh said earlier. STORY CONTINUES BELOW THIS AD The satellite will help study the changes in Earth's ecosystems, ice mass, vegetation biomass, forest cover, groundwater, sea level rise, as well as natural hazards, including earthquakes, tsunamis, volcanoes, and landslides. We've teamed up with @ISRO on the NISAR mission, a satellite that will measure changes on Earth's surface in fine detail. Data from NISAR can help us better manage natural resources, and understand the pace and effects of climate change. — NASA (@NASA) January 11, 2024 The data produced by Nisar will be freely available to all users, usually, within a few hours. 'The data will be placed in the public archive almost instantly after processing. Nasa and Isro have agreed - this is a science mission, and all radar data will be open,' Dr Paul Rosen, a Nasa Project Scientist for Nisar at the Jet Propulsion Laboratory in California, told NDTV. STORY CONTINUES BELOW THIS AD He underlined the satellite's role in tracking landslides and glacial lake outburst floods (GLOFs), which are becoming more common due to climate change. 'We can see precursory motion before landslides. And we will monitor glacier dynamics to assess GLOF risks,' Dr Rosen said. The satellite will also help monitor seismic zones, such as the Himalayas. 'We can measure ground motion to millimetre precision. That helps us understand the earthquake cycle - before, during, and after seismic events,' he added. The satellite can trace the path of a storm and the Earth's movements during earthquakes and volcanic eruptions. Nisar is expected to provide new insights into climate change or natural disasters, which can help in mitigation measures and early response. With inputs from agencies
India Today
2 hours ago
- Science
- India Today
Nisar launch today: Isro's $96 million bet to catch Earth's quietest twitches
Just when India was catching its breath after the whirlwind of Shubhanshu Shukla's Axiom-4 mission, the Indian Space Research Organisation (Isro) is back, this time teaming up with its American counterpart Nasa to launch the Nasa-Isro Synthetic Aperture Radar (Nisar) mission to powerhouse satellite is set to map Earth like never before, catching the quietest twitches happening bother over and under the game-changing Earth observation satellite, NISAR will launch aboard the powerful Geosynchronous Satellite Launch Vehicle (GSLV-MkII) from the Satish Dhawan Space Centre in Sriharikota. Nisar is a $1.5 billion (12,500 crore) collaboration between Nasa and Isro, and India's share? Just 788 crore (about $96 million). That might sound like a small slice of the pie, but it's a strategic investment with massive MAKES NISAR SO SPECIAL?NISAR will orbit the Earth once every 97 minutes and map almost the entire land and ice-covered surface of the planet within just 12 data will be open-source and freely available to researchers, making it a valuable tool for scientists, climate experts, and disaster managers. Nisar satellite being encapsulated in the GSLV fairing. (Photo: Isro) What sets NISAR apart is its world-first dual-frequency Synthetic Aperture Radar, combining Nasa's L-band radar and Isro's S-band radar. This unique setup allows it to see through clouds, forests, smoke, and darkness, and detect tiny changes on Earth's surface, down to a few this ability, NISAR can track glacier movements, monitor earthquake fault shifts, and measure land subsidence in cities due to groundwater loss, offering a groundbreaking way to understand and respond to changes on our DOES INDIA GAIN FROM NISAR?With 788 crore, India isn't just funding a satellite — it's making a strategic investment secures free, open-source, real-time access to world-class Earth observation data; establishes India's technology leadership through the development of the S-band radar and a homegrown launch; and equips the country with advanced tools for disaster response to floods, earthquakes, and directly supports India's climate goals by enabling glacier monitoring, agricultural planning, and water resource management. Most importantly, it strengthens India's global scientific credibility. This investment secures free, open-source, real-time access to world-class Earth observation data. (Photo: Isro) Thanks to this collaboration, Indian scientists, farmers, disaster teams, and climate experts gain daily access to high-value data, without bearing the full $1.5 billion cost of building such a mission helping predict floods in Assam to measuring how fast Himalayan glaciers are melting, NISAR will support India's sustainability and space ISRO LAUNCH NISAR ON GSLV-F16 LIVE HERE - EndsMust Watch
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First Post
5 hours ago
- Business
- First Post
FirstUp: Launch of Nasa-Isro joint satellite Nisar, Fed chief Jerome Powell's presser... The headlines today
A joint space mission of India and the US, Nasa-Isro's Synthetic Aperture Radar (Nisar), will be launched today from Andhra Pradesh's Sriharikota. Federal Reserve Chair Jerome Powell will hold a press conference following the conclusion of the Federal Open Market Committee (FOMC) meeting read more Nisar marks the first major Earth observation satellite to be jointly developed by the United States and India. File image/ANI It is set to be a busy Wednesday with several events lined up for the day. Firstly, Nasa-Isro's Synthetic Aperture Radar (Nisar) is set to be launched today in Andhra Pradesh's Sriharikota. Federal Reserve Chair Jerome Powell will hold a press conference today following the conclusion of the Federal Open Market Committee (FOMC) meeting. Protests are expected to continue in Kyiv as Ukrainian civil society demands that the government fully restore the independence of the nation's key anti-corruption agencies. STORY CONTINUES BELOW THIS AD Meanwhile, Deputy Secretary-General Sheikh Naim Qassem is set to address the anniversary of the killing of senior Hezbollah commander Fuad Shukr. Here is all that is set to take place throughout the day. Nisar to be launched The Nasa-Isro Synthetic Aperture Radar (Nisar) satellite is set to be launched today aboard India's GSLV-F16 rocket from the Satish Dhawan Space Centre in Andhra Pradesh's Sriharikota. Jointly developed by Isro and Nasa, the satellite is engineered for high-resolution imaging of Earth, regardless of weather or time of day. Nisar marks the first major Earth observation satellite to be jointly developed by the United States and India. The satellite combines Nasa's L-band radar, capable of penetrating vegetation and forest canopies, with Isro's S-band radar, better suited for monitoring soil and surface changes. This dual-frequency capability gives Nisar a unique edge in detecting a wide range of Earth phenomena with unparalleled accuracy. Powell to hold a press conference Federal Reserve Chair Jerome Powell will hold a highly anticipated press conference today following the conclusion of the Federal Open Market Committee (FOMC) meeting. This post-meeting press conference is a crucial event for financial markets and economists worldwide. Federal Reserve Chair Jerome Powell. File image/AP During the press conference, Powell will elaborate on the FOMC's latest monetary policy decision, which will be released simultaneously with the FOMC statement. While the specific decision regarding the federal funds rate will be the headline, Powell's commentary and responses to journalists' questions will provide invaluable insights into the Fed's economic outlook, its assessment of inflation and the labour market, and its potential future policy trajectory. Kyiv protests to restore independence of anti-corruption agencies Protests are expected to continue in Kyiv today as Ukrainian civil society demands that the government fully restore the independence of the nation's key anti-corruption agencies. These demonstrations erupted following the Parliament's passage of a controversial Bill No. 12414 on July 22, which critics argue effectively strips the National Anti-Corruption Bureau of Ukraine (Nabu) and the Specialised Anti-Corruption Prosecutor's Office (Sapo) of their autonomy by giving new powers to the Prosecutor General. Thousands have taken to the streets in Kyiv and other major cities since the bill's passage, marking the first significant anti-government protests in Ukraine since the full-scale Russian invasion began in 2022. Protesters, including war veterans and young activists, chanted slogans like 'Hands off Nabu' and 'Shame,' expressing widespread outrage over what they see as a severe setback to Ukraine's democratic reforms and its efforts to combat entrenched corruption. STORY CONTINUES BELOW THIS AD Hezbollah chief to deliver address on Fuad Shukr death anniversary Hezbollah Secretary-General Sheikh Naim Qassem is expected to deliver a significant address commemorating the anniversary of the killing of senior Hezbollah commander Fuad Shukr. Hezbollah's chief Sheikh Naim Kassem listens to a speech by then-leader Hassan Nasrallah in Beirut. File image/AP Fuad Shukr, a highly decorated and influential figure within Hezbollah's military apparatus, was killed on July 30, 2024, in an Israeli airstrike in Beirut, shortly after a drone strike killed Hamas political leader Saleh al-Arouri. Shukr was widely regarded as a key figure in Hezbollah's military operations and its relations with Iran's Revolutionary Guard Corps (IRGC), particularly in the development and deployment of the group's missile capabilities. In his address, Sheikh Naim Qassem is expected to honour Shukr as a martyr while also reinforcing Hezbollah's commitment to its anti-Israel ideology and its steadfast support for the Palestinian cause. With inputs from agencies
