IRNSS vs GPS – Difference between IRNSS and GPS

IRNSS(india)vs GPS(america)




We will do the complete detail analysis of both IRNSS vs GPS system. We will differentiate both the system on several factors as the date of introduction, accuracy, range, the number of satellite cost and much more. So, let us find out which one is better IRNSS or GPS?

GPS is Global Position System introduced by the United States. GPS is the world’s first position system. It has a total of 31 satellites.



It is one of the important factors to find out the better system. Well, GPS has introduced 38 years ago in 1978 while IRNSS is introduced this year 2016. If we analyze this data then, we can easily rate GPS over IRNSS.
  • IRNSS was first launched on 1st July 2013 to 28 April 2016.

  • GPS was first launched in February 1978. First and final date of the launch was not released due to the cold war.

Number of Satellite Launches of IRNSS vs GPS

The number of launches tells the number of the satellite launched by the system. It also shows the life and dependencies on satellite. IRNSS has 7 satellites while GPS has 72 satellites. But, GPS use only 31 satellites out of 70 satellites.
  • IRNSS has launched a total number of 7 satellites in orbit.
  • GPS has launched 72 satellites which are 10 times higher than IRNSS.

Constellation size of IRNSS vs GPS

It tells the number of satellites to synchronize together for providing a better location.

  • IRNSS has 7 Satellites in Constellation
  • GPS has 31 Satellites in Constellation.

Accuracy and Precision of IRNSS vs GPS

The clarity of the image matters the most. The more detailed image you see better you understand. If you see a wide range then, it is hard to find small objects between that ranges.
  • IRNSS will have the precision of 10-20 meters for civilian use. It is expected that Military will have more precision.
  • GPS has 5 meters coverage for civilian use. No official data released for Military use.

Range of IRNSS vs GPS



Range tells the total area covered by satellite
  • IRNSS is a regional satellite system. It will show India and will have a range of 1,500 km from Indian region. India can see the border area till extended 1,500km.
    Note: More the number of satellites to be launched by ISRO to increase the range of IRNSS.
  • GPS is a global satellite system. You can see any country any location using GPS system.

IRNSS-1A


IRNSS-1A was the first out of seven navigational satellite in the Indian Regional Navigation Satellite System (IRNSS) series of satellites to be placed ingeosynchronous orbit.[27][28] It was built at ISRO Satellite Centre, Bangalore, costing ₹125 crore (US$19 million). It has a lift-off mass of 1380 kg, and carries a navigation payload and a C band ranging transponder, which operates in L5 band (1176.45 MHz) and S band (2492.028 MHz).[30] An optimised I-1K bus structure with a power handling capability of around 1600 watts is used and is designed for a ten-year mission.[31][32] The satellite was launched on-board PSLV-C22on 1 July 2013 from the Satish Dhawan Space Centre at Sriharikota.

IRNSS-1B

Satellite IRNSS-1B was placed in geosynchronous orbit on 4 April 2014[34] aboard the PSLV-C24 rocket from Satish Dhawan Space Centre, Sriharikota.[35][36] The satellite will provide navigation, tracking and mapping services.[37]
The IRNSS-1B satellite weighs 1,432 kg and has two payloads: a navigation payload and CDMA ranging payload in addition with a laser retro-reflector. The payload generates navigation signals at L5 and S-band. The design of the payload makes the IRNSS system interoperable and compatible with GPS and Galileo.[34] The satellite is powered by two solar arrays, which generate power up to 1,660 watts, and has a life-time of ten years.

IRNSS-1C[edit]

Satellite IRNSS-1C was placed in geostationary orbit on 16 October 2014[40][41] aboard PSLV-C26 from the Satish Dhawan Space Centre, Sriharikota.
The IRNSS-1C satellite has two payloads: a navigation payload and CDMA ranging payload in addition with a laser retro-reflector. The payload generates navigation signals at L5 and S-band. The design of the payload makes the IRNSS system interoperable and compatible with GPS and Galileo.[34] The satellite is powered by two solar arrays, which generate power up to 1,660 watts, and has a life-time of ten years.

IRNSS-1D


IRNSS-1D is the fourth IRNSS satellite. It was launched using India's PSLV-C27 on 28 March 2015.

IRNSS-1E


IRNSS-1E is the fifth IRNSS satellite. It was launched on 20 January 2016 using India's PSLV-C31

IRNSS-1


IRNSS-1F is the sixth IRNSS satellite. It was launched on 10 March 2016 using India's PSLV-C32.

IRNSS-1G


IRNSS-1G is the seventh IRNSS satellite. It was launched on 28 April 2016 using India's PSLV-C33, which concludes the setting up of the Indian Regional Navigation Satellite System.

Orbital height of IRNSS vs GPS

The orbital height tells the height of satellite from the earth sea level.
  • IRNSS satellite has an orbital height of 36,000 km.
  • GPS satellite has an orbital height of 20,180 km.

Cost of IRNSS vs GPS

This factor tells how much money efficient satellite system is.
  • IRNSS cost about $212 million. This is very low as compare to any satellite system.
  • There is no official declaration of GPS cost. But, every year over $1 billion is spent on GPS.

Which satellite system is better IRNSS or GPS?

No doubt that GPS is far better as compared to IRNSS. But, IRNSS is a new system and Indian government planned to put more satellites to increase the area of coverage. I would say it is not about which one is better. It should be about who provide much better data to world at free.

No doubt that GPS is far better as compared to IRNSS. But, IRNSS is a new system and Indian government planned to put more satellites to increase the area of coverage. I would say it is not about which one is better. It should be about who provide much better data to world at free.



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