Explore Business Standard
ISRO Satellite
NASA-ISRO Synthetic Aperture Radar (NISAR) satellite launched onboard GSLV-F16 on July 30 this year successfully deployed 12-metre diameter antenna reflector and entered science phase, ISRO said on Friday. The antenna plays a key role for both ISRO's S-Band and NASA's L-Band Synthetic Aperture Radar (SAR) payload, it said. "The first image of S-Band SAR acquired on August 19, 2025, captures the fertile Godavari River Delta in Andhra Pradesh, India. Various vegetation classes like mangroves, agriculture, arecanut plantations, aquaculture fields, etc. are clearly seen in the image. The image highlights NISAR's S-Band SAR ability to map river deltas and agricultural landscapes with precision," ISRO said in a statement. On the 100th day of NISAR in orbit, the S-SAR images were released to the public by the Chairman, ISRO. With this, the commencement of the science phase has also been announced, it said. The antenna was launched in a stowed condition on a 9-metre-long boom, which was ..
ISRO Chairman V Narayanan on Tuesday said the space agency has been working on a rocket as high as a 40-storey building to place 75,000 kg satellite in low earth orbit. Delivering the convocation address of Osmania University here, Narayanan said this year, the space agency has lined up with projects such as NAVIC (Navigation with India Constellation system) satellite and the N1 rocket, besides placing a 6,500 kg communication satellite of the USA into orbit using Indian rockets. "You know, what is the capacity of the rocket? The first launcher, (Dr APJ) Abdul Kalam ji, which he built was a 17 tonne lift-off mass, capable of placing 35 kg in low earth orbit. Today, we are conceiving a rocket to place 75,000 kg in low earth orbit. The rocket is of 40-storey building height," he said. ISRO has planned to launch Technology Demonstration Satellite (TDS) and GSAT-7R, a Indian military communication satellite, specifically designed for the Indian Navy to replace the existing GSAT-7 ...
The Indian Space Research Organisation on Monday achieved a significant milestone with the successful completion of the third hot test of the Power Head Test Article (PHTA) at the ISRO Propulsion Complex in Mahendragiri, Tamil Nadu. The test is part of a crucial series of evaluations to validate the performance of India's upcoming semicryogenic engine, ISRO said. This marks the third in a series of hot tests undertaken by ISRO for the PHTA. According to ISRO, the test, conducted on May 28, was aimed at validating the engine's ignition and start-up sequence while optimising the process for integrated engine performance. During the three-second trial, the engine was ignited successfully and operated up to 60 per cent of its rated power level, exhibiting stable and controlled performance throughout. ISRO began this series of performance evaluations in March 2025, focusing on critical components such as low- and high-pressure turbo-pumps, the pre-burner, start-up system, and various .
ISRO on Saturday said that it has successfully carried out the ignition trial of the indigenous CE20 cryogenic engine powering the upper stage of LVM3, with a Multi-element igniter under vacuum conditions, which simulates the engine ignition in the vacuum condition of space. This test was carried out on Friday in the High Altitude Test Facility at ISRO Propulsion Complex, Mahendragiri, Tamil Nadu, ISRO said in a statement. This engine is crucial for the Gaganyaan mission, India's ambitious crewed space mission. During this test, the ignition of the engine Thrust Chamber was carried out with a multi-element igniter in a vacuum, under the tank pressure conditions that are expected to prevail at the time of restarting the cryogenic engine in flight. The performance of the engine and the facility during the test was normal and as expected. Restarting a cryogenic engine is inherently complex and as part of the studies related to the restart operation, ISRO is exploring the initiation of
ISRO's attempts to place the NVS-02 satellite in the desired orbit suffered a setback after the thrusters on board the spacecraft failed to fire, the space agency said on Sunday. The NVS-02 satellite, which was crucial for India's own space-based navigation system, was launched on January 29 on board the GSLV-Mk 2 rocket which was ISRO's 100th launch from the spaceport at Shriharikota. "But the orbit raising operations towards positioning the satellite to the designated orbital slot could not be carried out as the valves for admitting the oxidizer to fire the thrusters for orbit raising did not open," the space agency said in an update to the GSLV-F15 mission on its website. The satellite is orbiting the Earth in an elliptical Geosynchronous Transfer Orbit (GTO) which is not suitable for the navigation system. "The satellite systems are healthy and the satellite is currently in elliptical orbit. Alternate mission strategies for utilising the satellite for navigation in an elliptica
The 27-hour countdown for ISRO's historic 100th mission from this spaceport, launch of a Navigation satellite onboard a GSLV rocket commenced on Tuesday, sources in the space agency said. Also, this would be the first mission for ISRO Chairman V Narayanan, who assumed office on January 13. The Geosynchronous Satellite Launch Vehicle (GSLV) with indigenous Cryogenic upper stage in its 17th flight, carrying the navigation satellite NVS-02 is scheduled for lift-off at 6.23 am on January 29 from the second launch pad here. The navigation satellite is the second in the series of the Navigation with Indian Constellation (NavIC) aimed to provide accurate position, velocity and timing to users in the Indian sub-continent as well as to regions about 1,500 km beyond the Indian land mass. "The 27.30 hour countdown commenced at 02.53 am on Tuesday," multiple sources told PTI. The 50.9 metre tall GSLV-F15 follows the GSLV-F12 mission which successfully carried navigation satellite NVS-01, the .
ISRO on Sunday said the two satellites launched to perform space docking experiments were brought within three metres and then moved safely back in a trial attempt. The space agency also said the docking process would be done after analysing the data further. "A trial attempt to reach up to 15 metres and further to three metres is done. Moving back spacecraft to safe distance. The docking process will be done after analysing data further," ISRO said in a post on X. The Space Docking Experiment (SpaDeX) project has missed two announced schedules for docking experiments on January 7 and January 9. ISRO launched the mission on December 30. The PSLV C60 rocket, carrying two small satellites -- SDX01 (Chaser) and SDX02 (Target) -- along with 24 payloads, lifted off from the Satish Dhawan Space Centre in Sriharikota. About 15 minutes later, the two small spacecraft weighing about 220 kilogrammes each were launched into a 475-kilometre circular orbit, as intended. The SpaDeX project is
The launch of two satellites for the space docking experiment (SpaDeX) also marked a first for the industry, which built the two spacecraft on their own under guidance from the Indian Space Research Organisation (ISRO) engineers. The two satellites -- SDX01 (chaser) and SDX02 (target) -- each weighing 220 kg were integrated and tested by Ananth Technologies Limited (ATL), which has been associated with a number of ISRO projects for the past several years. "So far, large satellites have not been realised in the industry by themselves. This is the first time that the two satellites have been integrated and tested in the industry," said U R Rao Satellite Centre (URSC) Director M Shankaran after the two satellites were placed in a 476 km circular orbit by the Polar Satellite Launch Vehicle (PSLV-C60) on Monday night. Shankaran described the launch of the two satellites a trailblazer for the industry. "We hope that this is going to be the first of the several such satellites done by the