WEBVTT 00:00:00.000 --> 00:00:10.000 [MUSIC] 00:00:10.000 --> 00:00:32.400 [MUSIC] 00:00:32.400 --> 00:00:35.840 Communication is an integral part of our day-to-day life. 00:00:35.840 --> 00:00:41.620 And many services like television broadcasting, banking, broadband connectivity and 00:00:41.620 --> 00:00:47.300 telephony are enabled through communication satellites stationed in the geostationary 00:00:47.300 --> 00:00:50.320 orbit far in space. 00:00:50.320 --> 00:00:56.080 In the past three decades, Isro has launched and maintained a constellation of communication 00:00:56.080 --> 00:01:00.280 satellites essentially for domestic use. 00:01:00.280 --> 00:01:05.820 Isro's GSAT series with more than a dozen satellites in orbit is dedicated to 00:01:05.820 --> 00:01:09.200 provide communication services all over the country. 00:01:09.200 --> 00:01:13.280 GSA-30 spacecraft is a high-power communication satellite. 00:01:13.280 --> 00:01:16.800 It will replace the aging insert 4A spacecraft. 00:01:16.800 --> 00:01:23.680 The satellite is based on Isro's standard I-3K satellite bus and will provide 12 normal 00:01:23.680 --> 00:01:27.920 sea-band and 12 KU-band transponders. 00:01:27.920 --> 00:01:33.660 The satellite has three axes stabilized, momentum-biased control system with a host 00:01:33.660 --> 00:01:38.320 of sensors, reaction wheels and thrusters. 00:01:38.320 --> 00:01:46.580 GSAT-30 is an advanced communication satellite with a lift-off mass of 3,357 kilograms to 00:01:46.580 --> 00:01:52.480 provide valuable communication services to the country for more than 15 years. 00:01:52.480 --> 00:01:56.280 This satellite will generate around 6 kilo-watts of power. 00:01:56.280 --> 00:02:01.680 A host of new and advanced technologies are used to realize this satellite. 00:02:01.680 --> 00:02:06.960 The satellite has two large propellant tanks accommodated within its central structural 00:02:06.960 --> 00:02:08.260 cylinder. 00:02:08.260 --> 00:02:15.980 Liquid Apogee motor, which is GSAT-30's main engine, is mounted on a separate deck which 00:02:15.980 --> 00:02:19.460 interfaces with the bottom ring of the cylinder. 00:02:19.460 --> 00:02:25.420 The power system of the satellite comprises of deployable double-sided solar arrays for 00:02:25.420 --> 00:02:32.500 generating electric power and a lithium-ion battery of 180 ampere R capacity. 00:02:32.500 --> 00:02:38.580 GSAT-30 communication payload is equipped with 12 sea-band transponders and 12 KU-band 00:02:38.580 --> 00:02:40.340 transponders. 00:02:40.340 --> 00:02:46.100 Sea-band transponders are designed for two-way communication using GSAT terminals, about 00:02:46.100 --> 00:02:54.020 a bus geographical region extending up to Australia in the east and Europe in the west. 00:02:54.020 --> 00:03:02.620 GSAT-30 will provide continuity of direct-to-home TV services from this slot as well as digital 00:03:02.620 --> 00:03:08.380 satellite news gathering and very small aperture terminal services. 00:03:08.380 --> 00:03:15.220 KU-band transponders will provide services over Indian mainland and islands. 00:03:15.220 --> 00:03:21.220 The onboard KU-band beacon transmitter will help earth stations to point their antennas 00:03:21.220 --> 00:03:23.940 precisely towards the satellite. 00:03:23.940 --> 00:03:30.420 GSAT-30 will be the 24th Indian satellite launched by the Ariane launch vehicle of Ariane 00:03:30.420 --> 00:03:31.900 Space. 00:03:31.900 --> 00:03:39.060 The Ariane 5V vehicle carrying GSAT-30 onboard Ariane 5 launch vehicle from the European 00:03:39.060 --> 00:03:42.980 Space Port in Kuru, French Guyana. 00:03:42.980 --> 00:03:54.660 First, the launcher will inject GSAT-30 into a 250 by 35,975 km elliptical geosynchronous 00:03:54.660 --> 00:03:58.940 transfer orbit commonly known as GTO. 00:03:58.940 --> 00:04:03.980 Subsequently, the satellite's orbit will be raised from the GTO to the final circular 00:04:03.980 --> 00:04:12.980 geostationary orbit GSO by controlled firing of its liquid apogee motor, LAM, in stages. 00:04:12.980 --> 00:04:18.460 The deployment of the solar panels and the antennas will commence as the satellite nears 00:04:18.460 --> 00:04:21.980 its geostationary orbital home. 00:04:21.980 --> 00:04:28.980 The satellite employs high-power amplifiers and state-of-the-art antenna system to meet 00:04:28.980 --> 00:04:32.260 the requirements of multiple users. 00:04:32.260 --> 00:04:38.460 The GSAT-30, ISRO is once again poised for yet another milestone event which will further 00:04:38.460 --> 00:04:44.380 strengthen our communications infrastructure and provide continuity of satellite communication 00:04:44.380 --> 00:04:48.300 services to the country well into 2030s. 00:04:48.300 --> 00:04:53.300 [MUSIC] 00:04:53.300 --> 00:05:03.300 [BLANK_AUDIO]