NASA, ISRO gearing up to launch joint space mission to map globe every 12 days
Bengaluru (PTI): The NASA-ISRO Synthetic Aperture Radar (NISAR) is set to be launched in the first quarter of 2024 after a few tests, particularly those related to vibration, NASA officials have said.
"ISRO is projecting the first quarter of next year. So, I mean, that's ready," NASA NISAR Project Manager Phil Barela said during a media interaction here on Wednesday.
He is expecting the launch of NISAR (spelt as 'Naisar') "not earlier than January" from the Satish Dhawan Space Centre at Sriharikota aboard the ISRO Geosynchronous Satellite Launch Vehicle Mark-II.
The mission, which has three-year duration, aims to survey all of Earth's land and ice-covered surfaces every 12 days. This will start after a 90-day satellite commissioning period.
Regarding the key tests that are pending to be undertaken, Barela said, "The vibration testing that's underway, but there's a whole slew of performance tests that we need to do."
Battery and simulation tests have to be done to make sure that the system works fine, he said.
"...we'll be doing performance testing on the radars and various spacecraft electronics. So, a lot of testing remains but the big environments test, the only one remaining now, is vibration," Barela said.
NASA Jet Propulsion Laboratory Director Dr Laurie Leshin said the NISAR project is "better than anything that was flown in the past".
"While there are datasets from past missions that can form sort of a baseline, this is a new level of capability that we will have with NISAR," she had told reporters on Tuesday.
"If it's working very well, we will almost certainly extend that mission to get that longer baseline. It is a very important thing to see the Earth change on multi-year timescales. This is what we are looking for," Leshin had said.
According to ISRO, NISAR is a Low Earth Orbit (LEO) observatory being jointly developed by it and NASA.
NISAR will map the entire globe in 12 days and provide spatially and temporally consistent data for understanding changes in the Earth's ecosystems, ice mass, vegetation biomass, sea level rise, ground water and natural hazards, including earthquakes, tsunamis, volcanoes and landslides.
In a handout, NASA said the project aims to understand the dynamics of carbon storage and uptake in wooded, agricultural, wetland and permafrost ecosystems and the response of ice sheets to climate change, the interaction of sea ice and climate, and impacts on sea level rise worldwide.
NISAR will have Synthetic Aperture Radar Instrument (SAR), L-band SAR, S-band SAR and Antenna reflector.
According to NASA, the onboard instruments can even see a minor change of even one centimetre from space.
The SUV-size satellite has a mass of roughly 2,800 kg, which will be powered by two solar arrays providing about four kilowatts of power.
The six feet tall spacecraft bus' will contain the command and communication systems for the instrument payload, which houses the two SAR instruments.
"The bus' will also support the radar antenna reflector and its boom. There is enough fuel aboard to support at least five years of operations," the handout said.
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RCB calmer than last year, players clear about their roles: Krunal Pandya
Bengaluru (PTI): The atmosphere in the Royal Challengers Bengaluru camp is much calmer than last year and players have a lot more understanding of their roles this season, says Krunal Pandya.
RCB won the Indian Premier League trophy for the first time in 18 years in 2025 and Pandya was the Man-of-the-Match in the final against Punjab Kings at Ahmedabad, returning 4-0-17-2 as RCB won the contest by six runs.
"I feel that this year there is a much calmer atmosphere. Last year it was a new team, and everyone got to know each other. This year many players understand their roles and each other's strengths and weaknesses," Pandya said in a release by the franchise.
"When I get into the big occasions, I feel that if God has got you here, then there is a reason behind it and sometimes I think that these big occasions are actually made for me. I feel the pressure, but I think about how I can be calm and in the present moment and do what is required," he said.
Pandya said RCB icon Virat Kohli would easily rank among the greatest players in any era of cricket.
"Virat is a classic example. You can see that hunger; you can see that passion in how he sees the game and how much he wants that victory. If Virat Kohli had been born in any (some other) generation, he would still be one of the greats. He is not competing with anyone else," he said.
