GSLV-F12 successfully places second gen. navigation satellite into intended orbit: ISRO
Sriharikota, (AP) (PTI): The Indian Space Research Organisation (ISRO) on Monday successfully launched a second generation navigation satellite, using a GSLV rocket with a cryogenic upper stage to do the job.
NVS-01 would augment the country's regional navigation system, providing accurate and real-time navigation.
At the end of a 27.5 hour countdown, the 51.7 metre tall, 3-stage Geosynchronous Satellite Launch Vehicle lifted off at a prefixed time of 10.42 am from the second launch pad at this spaceport, situated about 130 km from Chennai. This was GSLV's 15th flight.
The second generation navigation satellite series dubbed as a significant launch would ensure the continuity of NavIC (Navigation with Indian Constellation) services -- an Indian regional satellite navigation system, similar to the GPS, providing accurate and real-time navigation.
Signals from NavIC are designed to provide user position accurate to better than 20 metres and timing accuracy better than 50 nanoseconds.
ISRO Chairman S Somanath congratulated the entire team for the "excellent outcome" of the mission.
"NVS-01 has been placed in precise orbit by GSLV. Congratulations to the entire ISRO team for making the mission happen," he said in his post-launch address from the Mission Control Center.
Today's success came after the GSLV F10 'debacle,' he said referring to the anomaly in the cryogenic stage of the launch vehicle in August 2021, following which the then mission could not be realised.
He expressed joy that "corrections in cryogenic stage and lessons learnt have really paid benefits" and credited the Failure Analysis Committee for addressing the problem.
Somanath further said NVS-01 is a second generation satellite with additional capabilities. The signals will be more secure, civilian frequency band has been introduced, he said. This was one of the five of such satellites.
The rocket, a little short of 20 minutes after it took off, deployed the 2,232 kg satellite into the intended Geosynchronous Transfer Orbit (GTO) at an altitude of about 251 km.
NVS-01 carried navigation payloads L1, L5 and S bands and the second generation satellite also has an indigenously developed rubidium atomic clock.
It is for the first time that an indigenously developed rubidium atomic clock has been used as the scientists earlier opted for imported ones to determine date and location.
Ahmedabad-based Space Applications Centre has developed the clock, and according to ISRO, it assumes significance as it is an important technology that only a handful of countries possess.
ISRO developed the NavIC system to meet the positioning, navigation and timing requirements of the country, particularly with regard to civil aviation and military requirements.
NavIC was earlier known as the Indian Regional Navigation Satellite System (IRNSS).
"The L1 navigation band is popular for providing position, navigation and timing services for civilian users and for interoperability with other GNSS (global navigation satellite system) signals," ISRO said.
Some of the applications of NavIC include terrestrial, aerial and maritime navigation, precision agriculture, location-based services in mobile devices and marine fisheries, among many others.
NavIC offers two services -- Standard Position Service (SPS) for civilian users and Restricted Service for strategic users.
NavIC SPS signals are interoperable with the US global navigation satellite system signals, GPS, Glonass from Russia, Galileo (European Union) and BeiDou, China.
Monday's mission is the sixth operational flight of the GSLV with indigenous cryogenic stages. The mission life of NVS-01 is expected to be better than 12 years, ISRO said.
ISRO has already launched similar navigation satellites--IRNSS-1A,IRNSS-1B,IRNSS-1C, IRNSS-1D, IRNSS-1E,IRNSS-1F,IRNSS-1G, IRNSS-1H and IRNSS-1I.
Of these missions, IRNSS-1H was not successful as the satellite could not be placed into orbit. It was replaced by IRNSS-1I which was successfully launched on April 12, 2018.
VIDEO | ISRO successfully places navigation satellite NVS-01 into geosynchronous transfer orbit. GSLV-F12 rocket, carrying the satellite, lifted off from Satish Dhawan Space Centre, Sriharikota High Altitude Range. pic.twitter.com/mvVg6IHFeF
— Press Trust of India (@PTI_News) May 29, 2023
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Arnab Goswami’s Homecoming? Anchor tears into Modi Government over aviation chaos
Says, govt not going to be happy with us saying this
New Delhi: In a striking turn that surprised even his regular viewers, Arnab Goswami spent the evening of December 4 taking direct aim at the central government over the ongoing crisis in the domestic aviation sector. The debate, aired on Republic, focused entirely on the severe disruption caused by IndiGo flight cancellations and the state of air travel in the country. The tone was sharp, emotional, and openly critical, raising the larger question of whether this marks a homecoming of sorts for the anchor long accused by critics of being soft on the government.
Goswami began the show by saying the central government had “completely let down” air passengers. He pointed to chaotic visuals from airports in Pune, Ahmedabad and Mumbai, describing passengers packed into crowded spaces, long queues, and travellers lying on the floor with little access to basic facilities. He said anyone travelling with children or elderly parents would understand the distress such situations cause.
According to him, the government often claims to have improved the aviation sector, but the day-to-day experience of passengers tells a different story. He argued that whatever help the government may have extended has benefited individuals and individual companies, not the sector as a whole.
Goswami highlighted data from the last three days, saying IndiGo had canceled 1,232 flights in November. He broke down the reasons for the cancellations: 755 linked to crew and FDTL constraints, 258 due to airspace and airport restrictions, 92 because of failures in air traffic control systems, 127 for other reasons.
He said passengers in India are often “taken for granted” and that only in this country can such large-scale cancellations take place without consequences.
Throughout the debate, Goswami repeatedly returned to the theme of duopoly. He said Air India and IndiGo together control 91.5 percent of the aviation market, leaving only a small share for others like Akasa and SpiceJet. This, he said, gives the two big players the power to decide prices and escape accountability.
“They can set the prices. They can torture passengers. They can be not answerable for air crashes.” He added.
Goswami also questioned why such a structure is allowed to exist if the government claims it opposes monopolies. He asked whether the government has made Air India accountable after the recent air crash, and said he did not believe so.
“We are told that the Modi government does not like monopolies. First of all, I don't agree with that. There are too many monopolies happening.” He said.
The anchor accused Air India of operating aircraft that were not airworthy and said no serious action followed. According to him, any other minister in charge of civil aviation would have been removed after such incidents, but nothing happened.
“He is not answerable. And why is the central government not bothered about it? Because he comes from the TDP, an alliance party. So let him do,” he said.
He added that Air India continues to seek government support, including compensation for losses after the Sindhur episode. Goswami questioned why public money should be used to support the airline, drawing a comparison with the earlier controversy involving Vijay Mallya seeking help from the Manmohan Singh government a move that was labelled as scam.
Goswami said passengers are suffering because of delayed flights, sudden cancellations, and lack of compensation. He criticised the DGCA, saying it was not enforcing safety and operational norms. He also questioned why the Prime Minister’s Office had not intervened.
He noted that Republic had carried multiple exposés on these issues and claimed that Air India chooses to give interviews and advertisements only to other channels.
He also called for Parliament to debate the aviation mess and examine whether monopolies or duopolies should be allowed in a nation of India’s size.
“I'm sure the government's not going to be happy with us saying this, but someone's got to speak up for the people of this country.” He added.
Known by his critics as the “Godi Media Chief”, Goswami’s direct attack on the Modi government over civil aviation raised eyebrows across media circles.
Whether this is a one-off outburst or a sign of a new editorial direction is something viewers will be watching closely.
#AviationCollapse | India’s aviation sector is in turmoil as IndiGo’s mass cancellations and Air India’s alleged safety lapses leave passengers stranded. The disruption raises serious questions about airline management, regulatory oversight, and who is ultimately responsible for… pic.twitter.com/Dqt6pcoW8w
— Republic (@republic) December 4, 2025
