Indian Regional Navigation Satellite System (IRNSS)

IRNSS-1A is the first satellite in the Indian Regional Navigation Satellite System (IRNSS). It is one of the seven satellites constituting the IRNSS space segment.

Payloads - IRNSS-1A carries two types of payloads navigation payload and ranging payload. The navigation payload of IRNSS-1A transmits navigation service signals to the users. This payload is operating in L5-band and S-band. A highly accurate Rubidium atomic clock is part of the navigation payload of the satellite. The ranging payload of IRNSS-1A consists of a C-band transponder which facilitates accurate determination of the range of the satellite. IRNSS-1A also carries Corner Cube Retro Reflectors for laser ranging.

Applications of IRNSS

  • Terrestrial, Aerial and Marine Navigation
  • Disaster Management
  • Vehicle tracking and fleet management
  • Integration with mobile phones
  • Precise Timing
  • Mapping and Geodetic data capture
  • Terrestrial navigation aid for hikers and travelers
  • Visual and voice navigation for drivers

Lift-off Mass1425 kg
Physical Dimensions1.58 metre x 1.50 metre x 1.50 metre
OrbitGeosynchronous, at 55 deg East longitude with 29 deg inclination
PowerTwo solar panels generating 1660 W, one lithium-ion battery of 90 Ampere-Hour capacity
Propulsion440 Newton Liquid Apogee Motor, twelve 22 Newton Thrusters
Control SystemZero momentum system, orientation input from Sun & star Sensors and Gyroscopes; Reaction Wheels, Magnetic Torquers and 22 Newton thrusters as actuators
Mission Life10 years
Launch dateJul 01, 2013
Launch siteSDSC SHAR Centre, Sriharikota, India
Launch vehiclePSLV - C22

Comments

Post a Comment

Popular posts from this blog

PM Modi unveils bronze statue of Freedom Fighter Alluri Sitarama Raju in Andhra Pradesh

Image
Prime Minister Narendra Modi today unveiled a bronze statue of freedom fighter Alluri Sitarama Raju, at a special programme on his 125th birth anniversary celebrations, in Bhimavaram, Andhra Pradesh. Speaking on the occasion, Mr. Modi said as country celebrates Amrit Mahotsav of 75 years of independence, we alongside are celebrating 125th anniversary of Alluri Sitarama Raju. He said 100 years of 'Rampa Kranti' for country's independence has also been completed. The Prime Minister said new India should be an India of the dreams of fighters who gave their lives for our freedom. He said in past 8 years, we have worked with full devotion, walking on the principles of Alluri Sitarama Raju towards the welfare of tribals. He said, for the first time since independence, tribal museums are being set up to showcase the tribal pride and heritage in the country. Alluri Sitarama Raju Memorial Tribal Freedom Fighters Museum' is being built in Lambasingi, Andhra Pradesh.
Read more

The partition of Bengal in 1905

Many reasons may be identified for the partition of Bengal in 1905. According to the British Government, the Bengal province consisting of Bihar, Orissa, Assam was too big to be welt governed. So it was felt that Bengal has to be divided for administrative convenience.  The British government actually was interested to check nationalistic feelings of Indians, so they partitions Bengal. Bengal was the nerve centre of Indian nationalism due to the rising number of attacks on the Britishers by the revolutionary terrorists, and due to the fact that emerging military nationalism had obtained a strong following in Bengal.  So it was this consideration which made the British partition Bengal under two administrate units;  1.  On the basis of language thus reducing Bengalis to a minority in Bengal itself.  2. On the basis of religion as Hindus in West and Muslims in the East. It was this imperialistic consideration that led to the partition of Bengal-and not the concept...
Read more

Modern Indian Literature

In almost all the Indian languages, the modern age begins with the first struggle for India’s freedom in 1857, or near that time. The impact of western civilization, the rise of political consciousness, and the change in society could be seen in what was written during that time. Contact with the western world resulted in India’s acceptance of western thought on the one hand, and rejection of it on the other, and resulted in an effort made to revive her ancient glory and Indian consciousness.  A large number of writers opted for a synthesis between Indianization and westernization, in their search for a natinal ideology. All these attitudes were combined to bring about the renaissance in 19th century India. But it was a renaissance in a country which was under foreign domination. So it was not that kind of renaissance which had spread in 14th-15th century Europe, where scientific reasoning, individual freedom and humanism were the dominant characteristics.  The Indian renaissa...
Read more

the methods used by the farmers’ organizations to influence the policy-makers in India

Image
Farmers’ organisations refer to group of farmers who are organised to protect their own interests related to issues like minimum support price, subsidies, welfare schemes for farmers, etc.  Ex: Bharatiya Kisan Sabha, Sehkari Sangatan, Karnataka Raitha Sangha, etc..  Farmer’s organisations, being a pressure group, follows different types of protests to influence policy-makers:  (a) Lobbying: here they influence policy-makers by providing information about their demands and grievances. For example: Due to protests by Dairy Farmers, KMF increased the rate of milk by Rs. 2 per litre.  (b) Protests and rallies: here they mobilise huge number of farmers and conduct rallies on a large scale to let the people understand their demands.  For example: protests by farmers in Maharashtra last year to increase MSP rates, pension schemes for farmers, implementation of Swaminathan committee recommendations, etc.  (c) Satyagrahas and fast unto death protests: farmers norm...
Read more

Which documents are required to be sent to the UPSC for legal cases?

In legal re-imbursement cases, the following documents are required to be furnished:-  a) Completed proforma;  b) Certified Copy of the judgment;  c) Stamped receipts for fees paid to lawyers;  d) Original Claim of the Claimant;  e) Certified copy of order sheet or a certificate showing the number of days on which the case was posted for hearing and on which it was actually heard.  f) In cases where the claims involved are for an amount exceeding Rs. 500/- the views of the Ministry of Law/Law Officer on the admissibility and reasonableness of the claim should be obtained before the case is placed before the Commission.
Read more

Selection of NonState Civil Service Officers to the Indian Administrative Services

In terms of the provisions of IAS (Appointment by Selection) Regulations 1997, a Non-State Civil Service Officer is eligible to be considered for selection to the Indian Administrative Service, provided he/she-  (a) is of outstanding merit and ability; and   (b) holds a Gazetted post in a substantive capacity; and  (c) has completed not less than 8 years of continuous service under the State Government on the first day of January of the year in which his/her case is being considered in any post which has been declared equivalent to the post of Deputy Collector in the State Civil Service; and  (d) has not attained the age of 54 years on the 1st day of the January of the year for which the Select List is to be prepared. (The cut-off age has been increased to 56 years which shall come into effect from the Select List of 2015, that is for the vacancies which may arise between 01.01.2015 and 31.12.2015, as per the amendments to the IAS Selection Regulations dated 17....
Read more

Should any original certificate be submitted to the TNPSC?

Not necessary. However, in case the candidate is already in Government service, the No Objection Certificate obtained from the competent authority alone should be submitted to the Commission in original. The remaining certificates will be returned to the candidates, after verification by the Commission.
Read more

Indian Renaissance and emergence of national identity

The social and religious reforms movement, popularly termed as Indian renaissance, which preceded the political struggles, are considered a necessary precursor to origin of Indian nationality.  How renaissance facilitated the emergence of national identity • Rediscovery of India’s glorious past: The nineteenth century Indian Renaissance also created several avenues in the field of oriental studies. Western scholars like Max Muller, Sir William Jones, Alexander Cunningham, etc. translated several ancient Sanskrit texts of this land and established before the people the glorious cultural heritage of India. Inspired by them, the Indian scholars like R.D. Banerjee, R.G. Bhandarkar, Madan Mukhopadhyaya, Hari Prasad Astir, Bal Gangadhar Tilak, etc. rediscovered India’s past glory from the history of this land. This encouraged the people of India who felt that they were the ancestors of grand monarchs of this country and ruled by foreigners. This flared up the fire of nationalism.  ...
Read more