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Types of Satellites Launched by ISRO

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.
Feb 4, 2016 17:16 IST
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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