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nitesh

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time to party guys:

The Hindu : National : Model of space crew module ready





mission’s objective was to send a two-member crew into space in low-earth orbit at an altitude of 275 km to 400 km, “orbit them for about seven days and bring them back safely” to earth. It would be a sea-landing, either in the Bay of Bengal or the Arabian Sea. The module with the crew will be recovered from sea.
The ISRO’s Geo-Synchronous Satellite Launch Vehicle (GSLV) would be used in the initial flights to carry the crew into space. The vehicle had to be improved with high reliability to be called “a human rated vehicle” — to put humans into space. In the initial missions, GSLV-Mark II would be used to carry two astronauts.

Dr. Radhakrishnan said: “Later, when the GSLV-Mark III is ready, we should be able to take at least three members. The crew module is designed in such a way that three persons can be accommodated. However, initially, we will put two in space. Here, the improvement and reliability of the vehicle is important.”
 

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RISAT begins sending images: ISRO


Kolkata, May 1 (PTI) The all-weather Radar Imaging Satellite (RISAT), launched on April 20, has begun sending images, a top official of Indian Space Research Organisation said here today.
"The RISAT has begun taking images since two days ago," ISRO chairman G Madhavan Nair said on the sidelines of an interactive session with members of the Calcutta Chamber of Commerce.

He said that the RISAT would take about a month to stabilise. India earlier bought images from the Canadian all-weather satellite before the RISAT was sent to the orbit.

The satellite, equipped with spying capabilities and capable of taking high-resolution images through clouds and using night vision, will help security agencies keep a watch on movement on the borders.

However, Nair was not very keen to term RISAT as a spy satellite, saying this would be mainly used for disaster management purpose. However, he explained, the pictures could be used for any purpose including defence.

RISAT is different from previous remote-sensing satellites as it uses the Synthetic Aperture Radar (SAR), equipped with many antennas to receive signals that are processed into high-resolution pictures. PTI

RISAT begins sending images: ISRO
 

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An Indian spy in the sky | Deccan Chronicle

SAR, mounted on a fast-moving platform, is able to take images in spot, mosaic and strip modes. The spot mode helps to focus a high-powered beam on a small area to build a high-resolution picture. Satellites in this category usually offer images with a resolution between 10 cm and 1 metre — good enough to monitor terrorist infiltration along the border. It will also offer imagery intelligence ranging from missile launch preparations to building of temporary or permanent structures, such as bunkers, near India’s border. Incidentally, 1-metre resolution image is enough to spot a car, while a 10-cm resolution image, taken at the right angle, will reveal the car’s licence plate.
India’s other eyes

India is a world leader in the remote sensing data market and with the launch of Risat-2, Isro will have nine remote sensing satellites in orbit. The others include:

* Technology Experimental Satellite (TES), 2001: India’s first military satellite sends 1-metre resolution images. Indian military obtained high-resolution images of Pakistani troop movement along the border and the war in Afghanistan from this satellite.

* Resourcesat-1, 2003: A sophisticated remote sensing satellite operating in multiple spectral bands, with a resolution of 6 metres.

* Cartosat-1, 2005: Has two panchromatic cameras able to take black-and-white pictures of an object from two different angles. It has a 2.5-metre resolution.

* Cartosat-2, 2007; 2A, 2008: Has panchromatic cameras, capable of 0.8-metre resolution images. Is meant for spot imagery.

* Gagan/IRNSS: India is developing or partnering multiple navigation satellite systems. The Gagan system will augment data from the American GPS system, while IRNSS will be a 7-satellite indigenous network meant to cover the Indian Ocean region for both civil and military applications.

* IAF satellite: The Indian Air Force is set to get a dedicated communications satellite by mid-2010.
 

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And now, lectures via satellite | Deccan Chronicle

Anusat, a 50-kg micro satellite, is the result of a first-of-its-kind collaboration: designed and fabricated by academicians from Anna University, Chennai, and by Isro experts. While anu in Sanskrit means atom, Anusat’s ambitions aren’t small. According to experts, Anusat is to Indian universities and education what Risat-2 is to India’s borders and security.
“Anusat has been placed in orbit and all sub-components were working well. Soon question papers and other relevant information can be sent from the university to colleges using high-security, high-speed link. Question papers can now be dispatched to colleges just half-an-hour before examinations commence. Apart from this, we would be broadcasting lectures live from the university to all our colleges”.
“Since Anusat has its limitation in transmitting data, we have decided to develop a second satellite which will be much more sophisticated and be able to connect colleges and universities across the country”, Prof Jawahar said. While Anusat cost the university approximately Rs 5.5 crore, it’s part-II will come at an estimated cost of Rs 12 crore.
The launch of Anusat is also significant for University of Pune’s department of electronic science whose faculty and students managed to indigenously build and make operational a receiving station and retriever capsule. This will help in not only sourcing information and data from Anusat in a 15-minute time window, but they will also analyse it and make its findings available for further research throughout the country.
 

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cross posting:

Tango with Israel

Tango with Israel

R. RAMACHANDRAN

The recent launch of the spy satellite RISAT-2 by India’s PSLV-C12 emphasises the widening of strategic ties between India and Israel.


THE TECSAR SPY satellite at an unkown location.

THE charade put on by the Indian Space Research Organisation (ISRO) around its twin-satellite launch on April 20, aboard the 15th mission of its Polar Satellite Launch Vehicle (PSLV-C12), was completely uncalled for and, not surprisingly, unsustainable. It was clear from reports worldwide that the main payload of the mission, a 300-kilogram radar imaging satellite called RISAT-2, was a microwave-based high-resolution imaging reconnaissance (or spy) satellite, which India had procured from Israel. Radar-based imaging has an all-weather – including cloudy and foggy conditions – 24-hour viewing capability as well as an ability to distinguish camouflaged formations from surrounding terrain. But ISRO chose to pretend it was a satellite “realised by ISRO in association with Israel Aerospace Industries [IAI]…[that] will enhance ISRO’s capability for earth observation, especially during floods, cyclones, landslides and management of disasters in a more effective way” (emphasis added).

Why ISRO resorted to obfuscation using words such as “realised” cannot be fathomed. Insiders say that it was a decision at the highest level of the government. ISRO obviously could not say that the satellite was collaboratively built with the IAI because it clearly was not. For one, ISRO’s earth observation systems specialists are busy sorting out technical problems with its own radar imaging satellite, RISAT-1, which was originally slated to go on PSLV-C12, and it is extremely unlikely that the organisation has enough specialists to put together another earth observation team for a system with a totally different technology. It now seems that all the problems with RISAT-1 have been successfully solved, and the indigenous radar imaging satellite, which has a high-resolution reconnaissance capability, could take to the skies by the end of the year.

Two, if RISAT-2 were a satellite jointly built by ISRO and the IAI for remote sensing applications, it would have at least found a mention in the annual reports of the Department of Space or in the detailed demands for grants or in the outcome budgets of the last couple of years. It did not figure even in the latest Vote-on-Account statement for the department. More importantly, according to reliable sources, the Hyderabad-based National Remote Sensing Agency (NRSA) is in no way associated with the mission, which would not be the case if it were for civilian remote sensing applications. It would also be highly unlikely that the IAI would transfer any technology or even design features necessary for the integration of the satellite with bought-out parts, such as the highly innovative five-metre-diameter dish-shaped Synthetic Aperture Radar (SAR) that forms the heart of the spacecraft.

Given that ISRO’s RISAT-1 weighs 1,750 kg, and other current SAR-based reconnaissance satellites are also of the same order, a SAR satellite weighing just 300 kg is indeed remarkable. The IAI tied up exclusively with the United State’s Northrop Grumman Corporation in 2007 to supply these SAR-based reconnaissance satellites to the U.S. government. Israeli agencies – the IAI and its subsidiary firm Elta, which designed the SAR – seem to have developed this advanced technology on their own without any U.S. assistance. As a result, Israel could export to India without any need for a U.S. Department of State export licence.

Interestingly, this is the first time ever that ISRO has not released any photograph of the satellite as is its normal practice in its press releases of launches. What is available are schematic diagrams of the satellite in stowed and deployed conditions or a photograph of a stowed satellite at an unknown location.

As will be at present argued, most probably the entire satellite was bought out by some Indian agency – which is clearly not ISRO and is presumably some intelligence agency – and ISRO has merely launched it. This is what analysts and media reports also generally believe. But, in keeping with its claims of openness and transparency, ISRO could have stated this up front and this might have been more acceptable from a national security point of view and gone down better in international perception.

ISRO

PSLV-C12 COMING OUT of the Vehicle Assembly Building in Sriharikota, readied to launch RISAT-2.


The political implications of India’s increased strategic ties and dealings with Israel are, however, doubtless serious and undesirable, notwithstanding the fatal attraction of mutually advantageous geostrategic locations of the two countries from a space-based surveillance perspective. This aspect will become clear shortly.

One could also pertinently ask why the great hurry to buy an Israeli satellite, that too at an enormous cost? Indeed, a news report in Spaceflight Now shortly before the launch stated that the satellite cost about $200 million (as compared with RISAT-1’s project cost of about Rs.380 crore), and the IAI is likely to have sold the complete package, including ground station communication hardware and software, which would have cost an equal amount or much more. Who has actually paid for the satellite and its associated systems is, of course, a well-kept secret.

An argument that is advanced is that, given the delay in launching RISAT-1, the need for an alternate reconnaissance mission became necessary in the wake of the Mumbai terror attack and amid increasing serious concerns about growing pro-Taliban activities in Pakistan and the need to monitor the movements of terrorists belonging to organisations such as Al Qaeda. Of course, media reports suggesting that infiltration from across the border can be monitored are grossly misplaced, unless it occurs in unlikely groups of large numbers. Given that the velocity of the spacecraft is about 8 kilometres/second, it would be just meaningless to say that a small band of infiltrators could be detected.


Just as in remote sensing, reconnaissance involves repeated surveillance of a given area to detect unexpected or suspicious changes in the viewed region with the aid of image-processing techniques and value addition. These generally require combining data over 4 pixels, which means that the least size that can be meaningfully observed should be at least four times the size of the highest resolution (4 × 1 m in this case). So, only a relatively slowly changing scenario in terms of group formations or vehicular movements can be detected and discerned.


Notwithstanding ISRO’s experience with handling TecSAR data, it is likely to be at least a few months before ISRO scientists get familiar with the new RISAT-2 imaging hardware, the new image-processing software and the new communication systems, by which time India should be close to the launch of RISAT-1. Admittedly though, RISAT-1 – whose SAR seems to be very similar to Canada’s Radarsat-2 in terms of design and technology and whose data ISRO has been receiving – is less capable than RISAT-2. Indeed, U.S. analysts say that RISAT-2 will give India a radar-reconnaissance-imaging capability comparable to the imaging radars carried by the most modern versions of the high-flying U-2 spy plane operated by the U.S. Air Force.

India-Israel space cooperation began with the launch by ISRO’s PSLV in January 2008 of TecSAR, Israel’s first radar-based spy satellite, which was a technology demonstrator for the novel and advanced design of the SAR. It is interesting to note that TecSAR and RISAT-2 are identical, in terms of appearance as well as actual detailed configuration. Both are 300 kg satellites with a SAR resolution of 1 m to 10 m depending on the mode of operation in terms of different ground-viewing aspect angles and scanning. If RISAT-2 had been configured and built by ISRO with the SAR supplied by the IAI, as is being claimed, this would be a highly improbable coincidence. Even more interesting is the fact that the orbits into which the two were launched are also nearly identical. TecSAR’s orbit parameters are an altitude of 450 km × 580 km, an inclination of 410 and an orbit period of 94.6 minutes. RISAT-2’s orbit parameters – according to an April 2009 Jonathan Space Report based on tracking by a U.S. ground station – are an altitude of 455 km × 557 km, an inclination of 41.10 and an orbit period of 94.19 minutes.

An inclined orbit of 410 becomes strategically important for both countries because of their fortuitous relative geographic locations. A Low Earth Orbit (LEO) satellite in an inclined orbit covers the area lying between 410 N and 410 S extremely well during its repeated orbits and that too quickly. As can be seen from an atlas, this region covers the areas of strategic interest for both countries – the entire West Asia region for Israel, and Pakistan and China, except for a part of its north, for India.

From a purely Pakistan-centric security perspective, an inclination of a little less than 400 would suffice. But if China is also a consideration, particularly its missile deployments directed towards the subcontinent as per the threat perception of Indian security agencies, a 410 inclination includes these locations as well and such a surveillance capability would be regarded as useful.

From this strategic perspective, a polar orbiting satellite would be inefficient as it would spend too much time looking at areas that are not important. This is precisely why Israel has chosen such an orbit configuration for its reconnaissance needs.


EO PORTAL, EUROPEAN SPACE AGENCY

SCHEMATIC OF RISAT-2 in deployed configuration.


The up-coming Indian RISAT-1, on the other hand, is designed to be a polar orbiting satellite, with a SAR resolution of 3 m to 50 m in operational-scanning modes and a 1 m resolution in an experimental-scanning mode. Inclined orbits at appropriate altitudes have also the advantage of much shorter revisit periods of the satellite, when the satellite returns to repeat its ground track, as compared with polar orbits.

For the particular case of TecSAR and RISAT-2, the naive revisit period is about four days as compared with 18 to 22 days for polar orbiting satellites such as the Indian remote sensing satellites. With a low mass of 300 kg and a diameter of just 1 m, TecSAR is extremely manoeuvrable so that the viewing angle can be altered very quickly if required. This would render the revisit period even shorter. Presumably, RISAT-2 has the same manoeuvrability. The above reasoning would have been the geostrategic fatal attraction for Indian intelligence agencies.

The fatal attraction is mutual. For Israel this comes from the east-facing launch site at Sriharikota. If Israel were to launch satellites on its own using its Shavit launcher, as indeed it has been doing with its Ofeq series of reconnaissance satellites (of similar weight) with optical, ultraviolet and infrared viewing capabilities, it would have to be in an east-to-west retrograde orbit, which would be against the rotation of the earth and a drain on the on-board fuel resources. The orbits of the Ofeq satellites had an inclination of about 1410 to 1430 (which is equivalent to a west-to-east orbit with an inclination of about 400) and about the same altitudes and orbit periods but with lifetimes of only one to three years. But by launching eastwards with ISRO’s help, the satellite’s lifetime increases. According to an April 2006 paper by Y. Sharay and U. Naftly, the original Israeli plan before ISRO came into the picture was to launch TecSAR westwards aboard Shavit into a 143.30 inclined orbit. TecSAR’s life is now stated to be about five years.

According to reports, there is also an intelligence-sharing arrangement between the two countries, and information from TecSAR is probably being exchanged already by the intelligence agencies. It is believed that under this arrangement Israel is also sharing its data downlink and change detection software capability with ISRO. The pro-Israel Indian political executive obviously sees this as a win-win situation for the two countries and, clearly, the launch of RISAT-2 fits into that logic and thinking.

Indeed, when TecSAR was launched, news reports from elsewhere, quoting the U.S.-based Centre for Strategic and International Studies, said that India was also interested in purchasing a TecSAR-class imaging radar satellite design from Israel for its own military reconnaissance operations to focus specifically on Pakistan and China. In fact, the TecSAR and RISAT-2 launches may not be the end of ISRO’s tango with Israel. Soon after TecSAR’s launch, Ami Haldersberg, Director of Remote Sensing at the IAI’s MBT Space Division, stated that with increasing need for quick revisits of a given location, a constellation of such satellites that are launched in quick succession was very much on the cards. He suggested that the TecSAR-class satellites, being modular in design, could also be quickly modified to carry an optical payload to supplement the radar imageries.

Beginning of cooperation

India-Israel cooperation actually began with the visit of Shimon Peres, the then Deputy Prime Minister and Minister of Foreign Affairs, to ISRO on January 9, 2002, when the Bharatiya Janata Party (BJP)-led government was at the Centre. A few months later, an umbrella space cooperation agreement was signed, the details of which are not known.

In 2003, then Israeli Prime Minister Ariel Sharon visited India, the first Israeli Prime Minister to do so. This was soon followed by another space cooperation agreement in 2003 when the then ISRO chief K. Kasturirangan visited Israel. This agreement included a contract for an ISRO launch of the Israeli astronomy satellite TAUVEX carrying an ultraviolet telescope. TAUVEX is yet to be launched. The other details of the agreement are, however, not known. Since for Israel an Indian launch seems to be ideal, and India was only too ready and willing a partner in such an engagement, this agreement presumably includes launches by ISRO of all future Israeli reconnaissance missions as well.


EO PORTAL, EUROPEAN SPACE AGENCY

SCHEMATIC OF TECSAR in deployed configuration and (right) a detailed schematic of TecSAR.


The growing India-Israeli ties under BJP rule have since been sustained and even stepped up by the present Congress-led United Progressive Alliance government in the past five years, particularly in defence acquisitions and joint military exercises and training. This was also the period when India-Israel science and technology cooperation for joint investment in research and development projects was initiated (2004) and a joint venture was launched between the IAI and Tata Advanced Systems for offset production in defence- and aerospace-related areas in India against various strategic acquisitions (February 2008).

But widening India-Israeli strategic ties will only lead to a vicious cycle of increasing backlash that in turn will make pro-Israeli politicians push the country even closer to Israel. The sooner the Indian scientific community realises the grave political and national security implications of this and takes a principled stand on such matters, the better it will be for the country.
 

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`Jugnu' to light up space research - Kanpur - Cities - The Times of India

Weighing less than 3 kg and with most functional qualities of a normal satellite on a small platform, the payload of the satellite will include an indigenously designed camera for near remote sensing and a GPS receiver. Jugnu will transmit blinking signal, at all times, all over the earth. The designed life span of the satellite is proposed to be one year. Jugnu's design will have to overcome many challenges as it will have to face high vibrations even before its ejection. The satellite will also have to survive high doses of radiation that can cause damage to the system memory. There are many other functionality constraints on the satellite hardware due to the limited power availability.
 

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Ocean satellite our next mission: ISRO chief

05 May 2009

BALASORE: Launch of an ocean satellite is the next mission of Indian Space Research Organisation (ISRO) after the successful launch of Chandrayaan-1, said G Madhavan Nair, ISRO chairman and Secretary of the Department of Space.

Nair who was here recently to attend the fifth convocation of Fakir Mohan University told this paper that, ‘‘through the satellite we would study the winds on the ocean surface, sea surface height variability and the wave heights and collect information about fishes.’’ ‘‘The satellite will provide quantitative description of the evolving state of the upper ocean and the pattern of ocean climate variability, including heat, fresh water storage and transport,’’ he added.

The ISRO chief said, oceans are the driving force for monsoons, a potential source of food, energy and drugs, a cost-effective medium for transport and a strategic space.

Measurements of sea-surface height, or ocean surface topography, reveal the speed and direction of ocean currents and tell scientists how much of the sun’s energy is stored by the ocean.

Combining ocean current and heat storage data is key to understanding global climate variations. These technological advances will allow scientists to monitor conditions in coastal regions, Nair said.

‘‘However, the next mission will enhance our knowledge of tides in coastal areas, shallow seas and internal tides in the open ocean, while improving our understanding of ocean currents and eddies,’’ he added.

On India after 10 years, the ISRO chief said: ‘‘We are already having a leadership position in the world. We will consolidate that and be one of the prominent nations as far as space research is concerned."

Ocean satellite our next mission: ISRO chief
 

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The Hindu Business Line : ISRO mulls setting up intermediate base on moon

ISRO mulls setting up intermediate base on moon



Bangalore, May 9 Indian Space Research Organisation (ISRO) is studying the possibility of setting up an intermediate base on the moon so that it can help the space agency to explore other planets such as Mars and Jupiter from that platform.

It is also planning to reduce the cost of access to space by half to about $10,000 a kg so that it is cheaper to send more spacecraft to not only mine information but also to extract Helium 3, which is an ideal fuel for atomic plants and certain metals such as magnesium and silica. The moon has deposit of about 2.5 million tonnes of metals, he said.

The ISRO Chairman, Mr G. Madhavan Nair, who was felicitated by the CII Institute of Quality at its eighth anniversary here on Saturday, said the country’s first mission to the moon, Chandrayaan has completed more than six months since its launch, and now ISRO has access to features which reveal key information.

Brakes India Managing Director and the trustee of Kuruvila Jacob Memorial Educational Trust, Mr S. Viji, who was felicitated at the anniversary function, said last year, the trust launched a programme for the establishment of three model schools on the QCI framework of quality school governance standards from the first and second cluster.

This accreditation standard aims at providing a framework for effective management and delivery of holistic education programme for the overall development of the students. This initiative was carried out at the request of the Corporation of Chennai.

School programmes
Mr Viji said the corporation school programmes have been conducted on a free of cost basis with the entire cost being borne by the trust with training assistance from Confederation of Indian Industry’s Institute of Quality in Bangalore. Mr Viji said these activities were part of the “Kuruvila Jacob Initiative for promoting excellence in school education”. He said this initiative was launched to honour Mr Kuruvila Jacob, a great educationist and humanist on his birth centenary in 2004. Mr Kuruvila was the headmaster of Madras Christian College High School between 1931 and 1962 and later became the principal of Hyderabad Public School and then moved to Mumbai to become the principal of Cathedral and John Connon School, the first Indian to head the school.

Challenges
Tata Steel Managing Director, Mr B. Muthuraman, who was also felicitated, said the corporate landscape is set to undergo several changes. “Hopefully we will have a more truthful and better world,” he said. One of the challenges facing companies was how to energise employees to take on targets, they have not reached before. He said employees usually perform better and try to achieve a target if they realise that they will not be penalised if they fail.

Delivering the IQ Anniversary Day lecture, Mr Rajiv Gandhi, Chief General Manager, casting and engine plants for Maruti Suzuki Ltd, said at the company’s car plant, manpower planning is carried out at 95 per cent attendance level with 21 days advance manpower induction for increased volumes. He said to manage absenteeism, workers were being given multi-skill training to prevent quality inconsistencies.
 

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The Hindu : Karnataka / Bangalore News : ISRO sets its sights on Mars

With the moon mission Chandrayaan 1 accomplished, the next venture will be sending a space vehicle to Mars, ISRO Chairman G. Madhavan Nair said here on Saturday. The plan is to make this possible by 2013 or a few years later.
“Right now, per kg of payload costs $15,000 to $20,000, and we are trying to bring it down to $1,000. Much of it can come from more indigenisation and through being able to reuse the different stages of the rocket taking a vehicle to space,”
 

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here it comes the RLV (AVATAR):

ISRO to launch re-usable rockets within next 10 to 15 years - ET Cetera-News By Industry-News-The Economic Times


also from:

Isro plans for reusable rocket launchers - Hyderabad - Cities - The Times of India

The Indian Space Research Organisation (Isro) is embarking on its next generation of reusable launch vehicles. Rockets on the lines of US space shuttles will be developed by Isro to cut down expenses drastically.
"This is a long-term project and will take another 20 years." He also highlighted the need to tap and store solar energy. "There is abundant solar energy in India. If we develop a proper mechanism to store and convert it into electrical energy, the increasing power needs can be solved,"
 

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India to Launch 1st IRNSS Satellite by December :: ASM

The Indian Space Research Organisation says it is on track to launch the first satellite in the Indian Regional Navigation Satellite system by the end of the year. The entire constellation will be in place by 2012.
The GEOs will be located at 34°E, 83°E and 132°E. The GSOs will be in orbits with a 24,000 km apogee and 250 km perigee inclined at 29 degrees. Two of the GSOs will cross the equator at 55°E and two at 111°E.

The system is designed to provide 20 metre accuracy over the Indian Ocean and 10 metres over the sub-continent.

The GEO satellites will have a 9.4 year lifespan. The GSOs will have a design life of 11 years.

IRNSS Architecture

The proposed architecture of the INRSS consists of space segment, ground segment and user segment. The space segment consists of three GEOs located at 34° E, 83° E and 132° E and four GSOs. The 4 N-GSOS will be placed in the orbit at an inclination angle of 29° with longitude crossing at 55° and 111° East. The ground segment consists of INRSS ranging and integrity monitoring which will be located at 20 places and most of them will be located in the airports along with GAGAN ground elements. IRNSS will have the two Master Control Stations (MCS), which may be co-located with GAGAN INMCC.


The proposed IRNSS will be designed indigenously and launched from Indian soil through Polar Satellite Launch Vehicle (PSLV). The proposed satellite specifications are given below.
• Dry mass of the satellite ~ 600 kgs
• Power generation 1400 watts
• Fuel loading capacity ~ 785 kgs
• Accommodates navigation payload of weight 102 kgs and 375 watts of power

 
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