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Types of Satellites Launched by ISRO

04-FEB-2016 17:16

    A satellite is a moon, planet or machine that orbits a planet or star. For example, Earth is a satellite because it orbits the sun. Likewise, the moon is a satellite because it orbits Earth. Usually, the word "satellite" refers to a machine that is launched into space and moves around Earth or another body in space. There are so many types of satellites like: Communication Satellites, Earth Observation Satellites, Navigation satellites, scientific & Exploration satellites, experimental satellites, small satellites etc. launched by ISRO.

    A. Communication Satellites: The Indian National Satellite (INSAT) system is one of the largest domestic communication satellite systems in Asia-Pacific region with nine operational communication satellites placed in Geo-stationary orbit. Established in 1983 with commissioning of INSAT-1B, it initiated a major revolution in India’s communications sector and sustained the same later. Currently operational communication satellites are INSAT-3A, INSAT-3C, INSAT-3E, INSAT-4A, INSAT-4B, INSAT-4CR, GSAT-8, GSAT-10 and GSAT-12.

    The system with a total of 195 transponders in the C, Extended C and Ku-bands provides services to telecommunications, television broadcasting, satellite news gathering, societal applications, weather forecasting, disaster warning and Search and Rescue operations.

    List of Communication Satellites:


    Launch Date

    Launch Mass

    Power

    Launch Vehicle

    GSAT-15

    Nov 11, 2015

    3164 kg

    Solar array providing 6200 Watts and Three 100 AH Lithium-Ion batteries

    N/A

    GSAT-6

    Aug 27, 2015

    2117 kg

    Generated power 3100 W

    N/A

    GSAT-16

    Dec 07, 2014

    3181.6 kg

    Solar array providing 6000 Watts and two 180 AH Lithium lon batteries

    Ariane-5 VA-221

    GSAT-14

    Jan 05, 2014

    1982 kg

    2600 W

    GSLV-D5

    GSAT-7

    Aug 30, 2013

    2650 kg

    3,000 W

    Ariane-5 VA-215

    INSAT-3D

    Jul 26, 2013

    2060 Kg

    1164 W

    Ariane-5 VA-214

    GSAT-10

    Sep 29, 2012

    3400 kg

    6474 Watts

    Ariane-5 VA-209

    GSAT-12

    Jul 15, 2011

    1410 kg

    1430 Watts

    PSLV-C17

    GSAT-12

    Jul 15, 2011

    1410 kg

    1430 Watts

    PSLV-C17

    GSAT_8

    May 21, 2011

    3093 kg

    6242 Watt

    Ariane-5 VA-202






    GSAT-5P

    Dec 25, 2010

    2310 kg

    N/A

    GSLV-F06

    GSAT-4

    Apr 15, 2010

    2220 Kg

    N/A

    GSLV-D3

    INSAT-4CR

    Sep 02, 2007

    2,130 kg

    3000 W

    GSLV-F04

    INSAT-4B

    Mar 12, 2007

    3025 Kg

    5859 W

    Ariane5

    INSAT-1B

    Aug 30, 1983


    N/A

    Shuttle [PAM-D]

    INSAT-1A

    Apr 10, 1982


    N/A

    Delta

    B. Earth Observation Satellites: Starting with IRS-1A in 1988, ISRO has launched many operational remote sensing satellites. Today, India has one of the largest constellations of remote sensing satellites in operation. Currently, eleven operational satellites are in orbit – RESOURCESAT-1 and 2, CARTOSAT-1, 2, 2A, 2B, RISAT-1 and 2, OCEANSAT-2, Megha-Tropiques and SARAL. Varieties of instruments have been flown onboard these satellites to provide necessary data in a diversified spatial, spectral and temporal resolutions to cater to different user requirements in the country and for global usage.

    The data from these satellites are used for several applications covering agriculture, water resources, urban planning, rural development, mineral prospecting, environment, forestry, ocean resources and disaster management.

    List of Earth Observation Satellites

    Name of Satellites

    Launch Date

    Launch Mass

    Power

    Launch Vehicle

    SARAL

    Feb 25, 2013

    407 kg

    906 W

    PSLV-C20

    RISAT-1

    Apr 26, 2012

    1858 kg

    2200 W

    PSLV-C19

    Megha-Tropiques

    Oct 12, 2011

    1000 kg

    1325 W

    PSLV-C18

    RESOURCESAT-2

    Apr 20, 2011

    1206 kg

    1250 W

    PSLV-C16

    CARTOSAT - 2B

    Jul 12, 2010

    694 kg

    930 W

    PSLV-C15

    Oceansat-2

    Sep 23, 2009

    960 kg

    1360W

    PSLV-C14

    RISAT-2

    Apr 20, 2009

    300 kg


    PSLV-C12

    Bhaskara-II

    Nov 20, 1981

    444 kg

    47 W

    C-1 Inter-cosmos

    RS-D1

    May 31, 1981

    38 kg

    16 W

    SLV-3

    Bhaskara-I

    Jun 07, 1979

    442 kg

    47 W

    C-1Intercosmos

     C. Experimental Satellites: ISRO has launched many small satellites mainly for the experimental purposes. This experiment includes Remote Sensing, Atmospheric Studies, Payload Development, Orbit Controls, recovery technology etc.

    Launch Date

    Launch Mass

    Power

    Launch Vehicle

    Orbit Type

    SRE – 1

    Jan 10, 2007

    550 kg



    Apple

    Jun 19, 1981

    670 kg

    210

    Ariane -1(V-3)

    RS-1

    Jul 18, 1980

    35 kg

    16 Watts


    RTP

    Aug 10, 1979

    35 kg



    Aryabhatta

    Apr 19, 1975

    360 kg

    46    atts


    D. Navigation Satellite: To meet the Civil Aviation requirements, ISRO is working jointly with Airport Authority of India (AAI) in establishing the GPS Aided Geo Augmented Navigation (GAGAN) system. To meet the user requirements of the positioning, navigation and timing services based on the indigenous system, ISRO is establishing a regional satellite navigation system called Indian Regional Navigation Satellite System (IRNSS).

    (i) GPS Aided GEO Augmented Navigation (GAGAN): This is a Satellite Based Augmentation System (SBAS) implemented jointly with Airport Authority of India (AAI). The main objectives of GAGAN are to provide Satellite-based Navigation services with accuracy and integrity required for civil aviation applications and to provide better Air Traffic Management over Indian Airspace. The system will be interoperable with other international SBAS systems and provide seamless navigation across regional boundaries. The GAGAN Signal-In-Space (SIS) is available through GSAT-8 and GSAT-10.

    (ii) Indian Regional Navigation Satellite System (IRNSS): This is an independent Indian Satellite based positioning system for critical National applications. The main objective is to provide Reliable Position, Navigation and Timing services over India and its neighbourhood, to provide fairly good accuracy to the user. The IRNSS will provide basically two types of services:

    1. Standard Positioning Service (SPS)
    2. Restricted Service (RS)

    List of Navigation Satellites:


    Launch Date

    Launch Mass

    Power

    Launch Vehicle

    IRNSS-1E

    Jan 20, 2016



    PSLV-C31/IRNSS-1E

    IRNSS 1D

    Mar 28, 2015



    PSLV-C27

    IRNSS 1C

    Nov 10, 2014



     

     

    IRNSS-1B

    Apr 04, 2014

    1432 kg

    1660 W

    PSLV-C24

    IRNSS-1A

    Jul 01, 2013

    1425 kg

    1660 W

    PSLV-C22

    E. Scientific & Exploration: Indian space programme encompasses research in areas like astronomy, astrophysics, planetary and earth sciences, atmospheric sciences and theoretical physics. Balloons, sounding rockets, space platforms and ground-based facilities support these research efforts. A series of sounding rockets are available for atmospheric experiments. Several scientific instruments have been flown on satellites especially to direct celestial X-ray and gamma-ray bursts.

    List of Scientific and exploration Spacecraft:


    Launch Date

    Launch Mass

    Power

    Launch Vehicle

    Mars Orbiter Mission Spacecraft

    Nov 05, 2013

    1337 kg

    840 W

    PSLV-C25

    Chandrayaan-1

    Oct 22, 2008

    1380 kg

    700 W

    PSLV-C11

    SRE-1

    Jan 10, 2007

    550 kg


    PSLV-C7

    SROSS-C2

    May 04, 1994

    115 kg

    45 W

    Augmented Satellite Launch Vehicle (ASLV)

    SROSS-C

    May 20, 1992

    106.1 kg

    45 W

    Augmented Satellite Launch Vehicle (ASLV)

    SROSS-1

    Mar 24, 1987

    150 kg

    90 W

    Augmented Satellite Launch Vehicle (ASLV)

    Image source: www.isro.gov.in

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