NVS-01, a second-generation navigation satellite, was successfully launched by the Indian Space Research Organisation (Isro) on Monday from the Satish Dhawan Space Centre (SDSC) in Sriharikota on the Geosynchronous Launch Vehicle, or GSLV Mk-II.
According to the space agency, the NVS-01 would improve India’s current regional navigation system by offering precise and immediate guidance.
Isro said after Monday’s launch, “GSLV-F12/ NVS-O1 Mission is Accomplished: After a flight of approximately 19 minutes, the NVS-O1 satellite was precisely injected into a geosynchronous transfer orbit.”
“Following orbit-raising manoeuvres will take NVS-01 into the intended geosynchronous orbit,” the space agency said.
After a 27.5-hour countdown, the three-stage, 51.7-meter-tall GSLV Mk-II launched at 10.42 am from SDSC’s second launchpad, around 130 kilometres from Chennai. The fifteenth flight for GSLV.
The satellite was put in a precise orbit, according to Isro Chairperson S Somanath, and the space agency deemed the operation successful.
“Congratulations on the successful completion of the GSLV-F12 mission. A precise orbit has been created for the spacecraft. This mission follows the failure of the GSLV-F10 mission, in which we encountered a cryogenic state problem. In a post-launch news conference, Somanath remarked, “I am pleased that the improvements and adjustments we made to make the stage more dependable have been a success.
Somanath provided an update on the impending missions and said that Isro is now preparing for Chandrayaan-3, India’s third lunar mission, to launch. He said that he is optimistic about Chandrayaan-3’s July launch. The launch is most likely to occur on July 12, according to HT’s story from last week.
Isro is hurrying to launch India’s solar mission, Aditya-L1, which is anticipated to launch in August or September, after Chandrayaan-3.
Isro has built a regional navigation satellite network dubbed Navigation with Indian Constellation (NavIC) to satisfy the nation’s positioning, navigation, and timing needs. The Indian Regional Navigation Satellite System (IRNSS) was the previous name for NavIC. NVS-01, according to Isro experts, will be a return flight mission for the GSLV launch vehicle carrying the next-generation NavIC satellite. The IRNSS-1G satellite, which was launched in 2016, will be replaced by this one.
Isro’s mission statement states that NavIC satellites are used for transportation on land, in the air, and on the water, location-based services, personal mobility, resource monitoring, surveying and geodetic work, scientific research, time distribution and synchronisation, and the dissemination of life-saving alerts.
Of the seven satellites that make up the IRNSS space segment, the IRNSS-1G satellite was the seventh navigational satellite. In July 2013, April 2014, October 2014, March 2015, January 2016 and March 2016 sequentially, PSLV-C22, PSLV-C24, PSLV-C26, PSLV-C27, PSLV-C31 and PSLV-C32 launched IRNSS-1A, 1B, C, D, E, and 1F.
Seven satellites make up the NavIC constellation, plus a network of ground stations that are operational around-the-clock. Four of the constellation’s satellites are in inclined geosynchronous orbit, while three are in geostationary orbit. The ground network comprises of a control centre, a facility for accurate timing, stations for measuring range and integrity, two-way ranging stations, etc.
Additionally, the cargo includes a locally produced rubidium atomic clock from the Space Applications Centre, Ahmedabad, which Isro describes as a “important technology that only a few countries possess.” A crucial component of the satellite navigation system is the clock.
Standard position service (SPS) for civilian users and restricted service (RS) for strategic users are the two services that NavIC provides. Both the S band (2498.028 MHz) and L5 (1176.45 MHz) are used to provide these two services. India is covered by NavIC, as well as a territory that extends up to 1,500 km beyond the Indian border. The user location precision of NavIC signals is greater than 20 metres, and the timing accuracy is higher than 50 nanoseconds. The L5 band, a protected frequency particularly allotted to the Indian system, is where the NavIC system is now operational. L1 band signals are also included into the NVS-1 to expand the services.



























