PSLV and GSLV Difference, Geosynchronous, Geostationary, Geotransfer orbit, Explained in Hindi скачать в хорошем качестве

PSLV and GSLV Difference, Geosynchronous, Geostationary, Geotransfer orbit, Explained in Hindi

0:00 - Introduction 0:46 - PSLV (Polar Satellite Launch Vehicle) 7:20 - Geosynchronous vs Geostationary 8:52 - GSLV Both PSLV and GSLV are the satellite-launch vehicles (rockets) developed by Indian Space Research Organisation (ISRO). PSLV is used for delivering various satellites to Low Earth Orbits. It is designed mainly to deliver the “earth-observation” or “remote-sensing” satellites with lift-off mass of up to about 1750 Kg to Sun-Synchronous circular polar orbits of 600-900 Km altitude. The remote sensing satellites orbit the earth from pole-to-pole (at about 98 deg orbital-plane inclination). An orbit is called sun-synchronous when the angle between the line joining the centre of the Earth and the satellite and the Sun is constant throughout the orbit. Due to their sun-synchronism nature, these orbits are also referred to as “Low Earth Orbit (LEO)” which enables the on-board camera to take images of the earth under the same sun-illumination conditions during each of the repeated visits, the satellite makes over the same area on ground thus making the satellite useful for earth resources monitoring. Apart from launching the remote sensing satellites to Sun-synchronous polar orbits, the PSLV is also used to launch the satellites of lower lift-off mass of up to about 1400 Kg to the elliptical Geosynchronous Transfer Orbit (GTO). PSLV is a four-staged launch vehicle with first and third stage using solid rocket motors and second and fourth stages using liquid rocket engines. It also uses strap-on motors to augment the thrust provided by the first stage, and depending on the number of these strap-on boosters, the PSLV is classified into its various versions like core-alone version (PSLV-CA), PSLV-G or PSLV-XL variants. The PSLV is one of world's most reliable launch vehicles. It has been in service for over twenty years and has launched various satellites for historic missions like Chandrayaan-1, Mars Orbiter Mission, Space Capsule Recovery Experiment, Indian Regional Navigation Satellite System (IRNSS) etc. PSLV remains a favourite among various organisations as a launch service provider and has launched over 40 satellites for 19 countries. In 2008 it created a record for most number of satellites placed in orbit in one launch by launching 10 satellites into various Low Earth Orbits. GSLV's primary payloads are communication satellites of INSAT class (about 2,500 kg mass) that operate from Geostationary orbits (about 36000 km) and hence are placed in Geosynchronous Transfer Orbits by GSLV. The GSLV is designed mainly to deliver the communication-satellites to the highly elliptical (typically 250 x 36000 Km) Geosynchronous Transfer Orbit (GTO). The satellite in GTO is further raised to its final destination, viz., Geo- synchronous Earth orbit (GEO) of about 36000 Km altitude (and zero deg inclination on equatorial plane) by firing its in-built on-board engines. Due to their geo-synchronous nature, the satellites in these orbits appear to remain permanently fixed in the same position in the sky, as viewed from a particular location on Earth, thus avoiding the need of a tracking ground antenna and hence are useful for the communication applications. GSLV, in general, is a three-staged vehicle with first stage using solid rocket motor, second stage using Liquid fuel and the third stage, called Cryogenic Upper Stage, using cryogenic engine. Two versions of the GSLV are being developed by ISRO. The first version, GSLV Mark-II, has the capability to launch satellites of lift-off mass of up to 2,500 kg to the GTO and satellites of up to 5,000 kg lift-off mass to the LEO. GSLV Mark-III, the second version, will be capable of placing 4,000 kg class of satellites to the GTO and satellites of up to 8,000 kg lift-off mass to the LEO. Indian Polity by M Laxmikant:    • Indian Polity by M  Laxmikant | Complete C...   Indian Economy:    • Indian Economy | Individual Topics | UPSC ...   Current Affairs 2019:    • Current Affairs  2019-2020 | UPSC | STATE ...   Environment :    • Environment | UPSC | STATE EXAMS| SSC   Science & Technology:    • Science & Technology | UPSC | State Exams ...   Instagram -   / buddhi_academy