Tag: India

India considers going to Jupiter and Venus

9:39 am

The competition heats up: India’s space agency ISRO is considering unmanned missions to both Jupiter and Venus, while also delaying their first manned test flight four years until 2024.

More significant, the second link had this quote:

Mr Somnath said during the current fiscal, Isro planned eight PSLV flights, up from six in 2016. “Our aim is to steadily increase the launches between 12 and 20 in phases with creation of necessary infrastructure.

Like everyone else, they are getting enough business to up their launch rate. 2017 is going to be an active year in the launch market.

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India hires private companies to build satellite

9:20 am

The competition heats up: For the first time India’s space agency ISRO has signed a deal with a private consortium of private companies to have them build satellites.

The contract signed on Friday includes assembly, integration and testing (AIT) of two spare navigation satellites consecutively in around 18 months. It was signed between M. Annadurai, Director of ISRO Satellite Centre (ISAC), and the consortium lead, Alpha Design Technologies P Ltd. ISAC assembles the country’s satellites for communication, remote sensing and navigation.

From the third year, Indian industry could expect competitive bids for a new lot of spacecraft of 300-500-kg class, perhaps five a year, for both ISRO and for export, Col. H.S. Shankar (retd), CMD of Alpha Design, told The Hindu. This is the first time that ISRO has outsourced an entire satellite to industry, said Col. Shankar .

The Modi government appears to be trying here to emulate NASA in putting private companies in charge of construction, rather than having things designed and built in-house by ISRO. This is a very good sign. If they do it now, in the early days of their space effort, they can reduce ISRO’s ability to grow into a large bureaucracy with its own vested interests.

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Design flaw in India’s Mars Orbiter

8:52 pm

According to American researchers, a fundamental design flaw in the primary scientific instrument on India’s Mangalyaan Mars orbiter prevents it from carrying out its mission of measuring the methane in the Martian atmosphere.

“They did not design this properly for the detection of methane on Mars,” Michael Mumma, senior scientist at NASA’s Goddard Space Flight Center, told Seeker. In 2003, Mumma led a team that made the first definitive measurements of methane on Mars using an infrared telescope in Hawaii. The methane, which appeared in plumes over specific regions of Mars, reached a maximum density of about 60 parts per billion. “The (MOM) instrument is beautifully engineered, but not for the methane task. It has other value, but unfortunately they will not be able to provide measurements of methane at the levels needed to sample even the plumes we saw,” Mumma said.

They are re-purposing the instrument to measure the reflected sunlight coming off the Martian surface, useful data to be sure but hardly worth an entire space mission.

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ISRO begins ground tests of its first lunar lander

9:36 am

The competition heats up: ISRO, India’s space agency, has begun testing the sensors its first lunar lander, Chandrayaan-2, will use to descend safely to the surface.

ISRO Satellite Centre or ISAC, which is the lead centre for the country’s second moon mission, has artificially created eight to ten craters to make the terrain resemble the lunar surface. This terrain is now the test bed for the lunar Lander’s sensors. Between Friday and Monday, a small ISRO-owned aircraft carrying equipment with the sensors flew a few times over these craters to see how well they performed.

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PSLV places multiple satellites into different orbits

8:55 am

The competition heats up: India’s space agency ISRO has successfully used its PSLV rocket to launch eight satellites into two different orbits.

After the successful separation of SCATSAT-1, the PSLV-C35 mission continued. Still carrying the seven co-passenger satellites, the fourth stage of PSLV coasted over the South polar region and then started ascending towards the Northern hemisphere. A safe distance between the orbiting SCATSAT-1 and PSLV-C35 fourth stage was maintained by suitably manoeuvring the stage.

At 1 hour 22 minutes and 38 seconds after lift-off as the fourth stage was in the North polar region, the two engines of PSLV fourth stage were reignited and fired for 20 seconds. As a result of this, it entered into an elliptical orbit measuring 725 km on one side of the Earth and 670 km on the other. And 50 minutes later, as the PSLV fourth stage was again coasting near the south pole, its engines were fired for another 20 seconds. This second firing made the fourth stage to enter into a circular orbit of 669 km height inclined at an angle of 98.2 degree to the equator. 37 seconds later, the Dual Launch Adapter was successfully separated from the PSLV-C35 fourth stage. 30 seconds after this event, ALSAT-1N was the first co-passenger satellite to be separated successfully. Following this, the NLS-19, PRATHAM, PISAT, ALSAT-1B, ALSAT-2B, and Pathfinder-1 were separated from the PSLV fourth stage in a predetermined sequence thereby successfully completing PSLV-C35 mission.

This launch was also the 36th successful PSLV launch in a row.

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India army suffers largest terrorist attack in decade

6:51 pm

Guess who: On Sunday seventeen India soldiers were killed by terrorists thought to come from a Islamic terror group based in Pakistan.

The Director General of Military Operations, Lieutenant General Ranbir Singh, said the terrorists were foreigners and there are clear signs of the role of the terror group Jaish-e-Mohammed, whose chief Masood Azhar is based in Pakistan. The group had been involved in the attack on Pathankot air base in January during which 7 army-men were killed.

An analysis of the situation can be read here.

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India’s GSLV rocket successfully launches again

10:03 am

The competition heats up: India’s Geosynchronous Satellite Launch Vehicle (GSLV) successfully placed a commercial communications satellite in orbit today.

This is the third successful GSLV launch in a row, indicating that India’s space agency ISRO has finally worked out the kinks of their home-built upper stage and are ready to begin regular and more frequent commercial launches, in direct competition with the world’s big players in the launch industry.

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India tests scramjet successfully

8:32 am

The competition heats up: Using a newly developed suborbital sounding rocket, India today successfully tested its first scramjet engines.

The scramjet engine, used only during the atmospheric phase of the rocket’s flight, will help in bringing down the launch cost by reducing the amount of oxidiser to be carried, along with the fuel. Later, the ISRO in a statement said: “With this flight, critical technologies such as ignition of air-breathing engines at supersonic speed, holding the flame at supersonic speed, air intake mechanism and fuel injection systems have been successfully demonstrated.” The scramjet engine designed by ISRO uses hydrogen as fuel and the oxygen from the atmospheric air as the oxidiser.

The real question is whether India can do something that NASA has never been able to do, go beyond tests and get a scramjet engine installed in a rocket and put it to use. NASA’s history is filled with many similar test programs, each hailed as great achievements that will someday revolutionize the launch industry, and then forgotten and shelved.

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