India’s Space Research Organization has successfully launched 8 satellites in two different orbits in a first ever payload launch of the kind.
Mashable reports that the entire mission took 25 days since the team experienced many unprecedented challenges. The Polar Satellite Launch Vehicle –C35 had to be re-ignited a second time after its first placement, since the satellites had to be injected into two different orbits.
The SCATSAT-1, weighing 818 pounds, was one of the eight satellites to be launched. It is designed to study weather and can last in space for as many as five years. The other seven include two developed by Indian universities —PES University in Bangalore, and the Indian Institute of Technology, Bombay — 3 from Algeria and one each from the U.S. and Canada.
September 28, 2016 No Comments
The Indian Space Research Organization (ISRO) successfully launched its advanced weather satellite INSAT-3DR using its GSLV-F05 from the spaceport of Sriharikota in Andhra Pradesh. The cryogenic engine used in the satellite was made in India.
This advanced meteorological satellite is configured with an imaging system, an atmospheric sounder, data relay as well as search and rescue transponders.
Other features include:
- Imaging in middle infrared band to provide night time pictures of low clouds and fog
- Imaging in two thermal infrared bands for estimation of sea surface temperature with better accuracy
- Higher spatial resolution in the visible and thermal infrared band
Earlier launches using this technology—GSLV-D5 and GSLV -D6—were a success. The GSLV class of satellites also includes EDUSAT, which is used for distance education and other academic purposes, reports Mint.
September 19, 2016 No Comments
India’s Space Research Organization (ISRO) conducted a successful experiment to demonstrate supersonic combustion using atmospheric oxygen on Sunday, August 28. It was the maiden experiment of ISRO’s Dual Mode Ramjet (DMRJ) engine, which uses hydrogen as fuel and air from the atmosphere as the oxidizer, at hypersonic conditions, and was an important step toward developing reusable launch vehicles to reduce the costs of future space missions, reports Business Standard.
The mission used the RH-560 rocket fitted with a supersonic combustion ramjet (Scramjet) engine, and it was launched at India’s rocket port located at Satish Dhawan Space Center in Sriharikota in the eastern state of Andhra Pradesh.
The Vikram Sarabhai Space Center at Thiruvananthapuram, the capital city of the southern state of Kerala, developed the engines to be used in the RH-560 rocket, reports Defense World.
The technology demonstration of hypersonic air breathing dual ramjet engines will lead to the design and development capability of advanced air breathing engines, including engines with variable geometry air intake for future space transportation systems.
August 27, 2016 No Comments
U.S. Congressman Lamar Smith, chairman of the House Science, Space and Technology Committee, and Rep. Brian Babin, chairman of its space subcommittee, sent letters to Secretary of State John Kerry, Secretary of Commerce Penny Pritzker, United States Trade Representative Michael Froman and Director of Office of Science and Technology Policy John Holdren asking about policies regarding the launch of U.S.-built satellites on India Space Research Organization’s Polar Satellite Launch Vehicles, and how these were developed, reports SpaceNews.
“The administration has provided a number of export waivers on a case-by-case basis for these launches, in part because India is becoming a strategic ally in South Asia,” Babin said at an April 19 hearing of his subcommittee on issues associated with small launch vehicles.
The issue of using PSLVs in India rose because satellite manufacturers in the U.S.are making satellites at a quicker rate than their launch capability. Eric Stallmer, president of the Commercial Spaceflight Federation, said at the April hearing. “The PSLV has a sweet spot and the capability to launch some of these satellites in a timely manner.” While Stallmer opposed any policy change that would provide easier access to PSLV, he added that government waivers on a case-by-case basis for Indian launches is acceptable as “a temporary solution”.
July 15, 2016 No Comments
India’s Space Research Organization is in the final countdown stage of building and launching its very own version of a ‘space shuttle’. The size of a sports utility vehicle, India’s engineers have created a winged reusable launch vehicle which will be used 10 times (if reusable technology succeeds) as a solution to reducing the cost of launching satellites to $2,000 per 4410 pounds.
This Reusable Launch Vehicle – Technology Demonstrator (RLV-TD) will take off from India’s space port at Sriharikota in the eastern state of Andhra Pradesh on the coast of the Bay of Bengal.
The 6.5-m-long spacecraft, which has delta wings, weighs 1.75 tons and it will be hoisted into the atmosphere on a special rocket booster powered using a solid fuel. The first stage will hoist the RLV-TD experiment to about 43.5 miles into the atmosphere from where the descent will begin. The test launch will use a vehicle that will get destroyed upon landing on a “virtual runway” in the Bay of Bengal.
During the descent phase, small thrusters will help the vehicle glide back onto the virtual runway, reports NDTV.
One key technology scientists at the Vikram Sarabhai Space Center have developed is very lightweight heat-resistant silica tiles that are plastered on the underbelly of the RLV-TD so that it can withstand high temperatures as it returns to earth’s dense atmosphere after its journey through near vacuum in space. This flight will test the capability of the vehicle to survive at re-entry at speeds higher than that of sound, and hence it is called a hypersonic experiment (HEX).
May 16, 2016 No Comments