Satellites Sent by India
Sakthi Vel Shankar
India have sent totally 16 satellites to the space successfully till now.
Satellites are playing a vital role in the technical side of the world. One country can use the satellite launching for the development of the country to the peak level or to demolish the other country too. But these satellites were unpluckable fruit for India till the 1980's. But after the invention of the satellites and the launched satellites India,s development is making the other country people to exclaim. The part of Dr. Abdul kalam is an essential one in this developed department. We shall look about the satellites that are launched by India till now in this article.
This satellite launching vehicle was attempted to send to the space from Sriharikota, India a 10th august 1979. ISRO (Indian space research organisation) has been in the project of SLV(Satellite launching vehicle) with the leadership of Dr. APJ Abdul kalam. It finally got ready to send the first Satellite launch vehicle to the space at the year 1979. But unfortunately the result of that attempt gone failure because of the wrong assessment of the pay load and caused mis balance resulted in the failure of the attempt and the vehicle crashed into the bay of Bengal which is not a far distance from sriharikota. This event has happened within the 320 seconds from its take off time.
SLV 3 E2
This satellite was sent at 17th July 1980 from Sriharikota, India. This project was carried out as an experiment. It was designed to be spinning around the earth at an particular orbit for the period of 1.2 years and to be communicating with the earth using the VHF band. This is the first satellite sent by India to the space successfully.
SLV 3 D 1
This is another experimental satellite launched in the space successfully at 31st may 1981. This satellite was experimented as a trial for launching the earth observing satellites in the future. This satellite was launched in a particular orbit in the space and given a life time of 9 days. The pay load which will be sent with the satellite was designed as the land mark tracker having the remote sensing one.
SLV 3 D 2
This is another successfully launched satellite in the space by India at 17th April 1983. The orbital life of this satellite was seven years and the same satellite was re launched at 19th April 1990. This satellite has sent totally 5000 images of the earth till now. The role of this satellite was smart sensor that is sensing and taking photographs of the earth and sending to the earth.
ASLV D1 (Augmented satellite launch vehicle)
This was the first satellite attempted to get launched in the space for conducting a mission at 24th march 1987. It was sent with some instruments like Launch vehicle monitoring platform, Gamma ray burst etc., But unfortunately this attempt got failed to reach the allocated orbit.
This satellite was sent from the earth at 17th march 1988. The role of this satellite was to observe the earth and to send some images of earth. But unfortunately this attempt too failed and the satellite didn't get the orbit.
This satellite was sent from the earth at 20th may 1992. The successful launch of this satellite did the experimented 2 months mission in the space. The weight of this satellite was 106kg.
This satellite was sent to the space at 20th September 1993. But unfortunately it didn't reach its orbit.
This satellite was sent at 4th may 1994. The role of this satellite was doing a mission. The total period of this satellite orbit was 2 years and this mission was completed successfully. The weight of this satellite's pay load that carried the required instruments for the mission was 116 kg.
This is one of the milestones of the ISRO that launched the long living earth observing satellite in the space. This event happened at the Sriharikota at 15th October 1994. The communication between this satellite and the research centre has been in the Sand X band rays. The weight of the pay load of this satellite was 804 kg.
This satellite was launched in the space at 21st march 1996. It was a mission doing satellite and the mission was to sense the natural resources of the earth and also to scan and do research about the resources too. A 920 kg pay load with the modern scanners were sent with this satellite. The period of this successful mission was one year.
By following the mission done by the BSLV D3, the long living BSLV C1 was sent to research about the natural resources of the earth at 27th September 1997. It has the long orbital life. The weight of the pay load of this satellite containing the instruments like the previous one, was 1250 kg.
This satellite was sent at 26th may 1999. The purpose of this satellite was to research about the ocean of earth. As per the purpose, this satellite carried the instruments like ocean monitor and some radiometers. The pay load of this satellite was 1050kg. The orbit life was 5 years.
This satellite was launched at 18th April 2001. The role of this satellite was communicating the latest systems such as audio broadcasting, Internet services and the compressed TV transmission. The pay load of this satellite was 1580kg.
This satellite was launched to do some researches about the orbit placement etc at 22nd October 2001. The pay load was 1150kg.
This satellite was renamed as Kalpana 1 after the death of America born Indian Kalpana chawla in the US space Columbia disaster. It was launched successfully at 12th September 2002 with the pay load of 1060 kg of weight.
This satellite was launched at 8th may 2003 with the pay load of 1800kg of weight. This was an experimental satellite for the communication purpose.
This satellite was launched successfully at 17th October 2003. This is the most powerful remote sensing satellite of ISRO. The orbital life of this satellite was 5 years.
This satellite was launched at 20th September 2004. This is the first educational satellite of India. I has been providing the two way online class rooms for the students. The pay load is 1950kg of weight carrying lot of communicating instruments in it.
This satellite was launched at 5th may 2005. It was launched as one of the earth observing satellites.
This satellite was launched at 22nd October 2008. This is the first Indian satellite launched to get images from moon. This satellite was launched in the orbit which is 100km away from moon. After completion of getting images from this distance, the chandrayaan has been moved to the 200km distance from the moon. The payload containing the latest image taking devices and the audio observing devices in it with the weight of 1380kg. The orbit life was 2 years.
Ocean sat 2
This is the final satellite has been launched by India. This is for researching about the ocean of the earth. It was launched at 23rd September 2009. The orbit life is 3 years.
Now after reading this article we can understand the reason for the rate of communication got reduced in the 21st century that the Indian communication oriented satellites are launched during that period. As the satellites are not only for discovering some thing new, they are playing the part in our life and making our life easy by compacting the communication distance and some other factors.
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