Brahmand NewsPrevious Article
Brahmand NewsNext Article
Headlines
  • NDA passing-out parade to be low-key, parents can't attend:-In view of the coronavirus pandemic, the Passing Out Parade at the National Defence Academy (NDA) in Pune will be held in a "scaled-down" manner and parents of the cadets will not attend it, the institute has said....
  • Army commanders deliberate on situation in Ladakh for second consecutive day:-The Indian Army has rushed in additional troops and weaponry to eastern Ladakh as part of its strategy to fend off China's aggressive military behaviour with "firmness", even as top Army commanders deliberated on the delicate situation in the region for the second consecutive day on Thursday, official sources have said....
  • Historic SpaceX launch postponed because of stormy weather:-The launch of a SpaceX rocket ship with two NASA astronauts on a history-making flight into orbit was called off with less than 17 minutes to go in the countdown because of thunderclouds and the danger of lightning; the liftoff has been rescheduled for Saturday afternoon....
  • HAL awaiting approval for Mk-1A manufacture: CMD:-Hindustan Aeronautical Ltd (HAL) is awaiting approval from the Cabinet for manufacture of LCA Mk-1A, the improvised version of Mk-1 fighter platform, to be supplied to the Indian Air Force, the company‚Äôs Chairman and Managing Director R Madhavan has said....
student competition 2020

NASA launches newest communication satellite

Line Spacing+- AFont Size+- Print This Article

The United Launch Alliance Atlas V rocket lifts off from the Cape Canaveral Air Force Station carrying the Tracking and Data Relay Satellite, or TDRS-L, spacecraft to Earth orbit. A NASA photo

CAPE CANAVERAL, FLORIDA (AP): NASA's super-high-flying fleet of communication satellites just got bigger.

An unmanned rocket blasted into a chilly, clear sky Thursday night carrying the latest, third-generation Tracking and Data Relay Satellite.

NASA uses the TDRS satellites to support the International Space Station and Hubble Space Telescope, among other craft.

The network is 35,886 kilometres high, at various locations above the equator, and allows continuous two-way contact with the space station and its six inhabitants.

The TDRS system is so vital it's considered a national asset. A modern-day human space programme would be difficult if not impossible without the constant coverage provided by the TDRS satellites, said Badri Younes, NASA's deputy associate administrator for space communications and navigation. Ground stations, limited in number, would provide just a fraction of that capability.

Each satellite has a pair of dish antennas 15 feet (4.5 meters) in diameter.

"Not only are we getting global coverage 100 percent of the time, we are getting it in real time," Younes said, snapping his fingers, at a news conference earlier this week.

"Without such support, we'd have to live with coverage around the 10 to 15 percent," he said.

"No human spaceflight programme can be supported at this data rate. And even our ability to respond real time to emergency would diminish drastically. So that's why the TDRS has been declared as a national asset."

NASA is the primary user; the TDRS system also occasionally assists other countries' space agencies and the US military. In 2002, a TDRS satellite allowed Massachusetts doctors to oversee knee surgery performed at the South Pole.

This newest $350 million satellite, which will work its way up from a temporarily low orbit, is designated "L" in the TDRS series. NASA will rename it TDRS-12 once it's checked out in orbit, by late spring.

NASA launched its first TDRS in 1983 aboard a space shuttle. The previous satellite, TDRS-11, soared in January 2013.

Officials said they need six active TDRS satellites in orbit at any one time, along with a ready-to-go spare.

Tags:

Line Spacing+- AFont Size+- Print Article

Other Related News

India to go ahead with infra development in key areas along LAC despite stiff resistance from China

India will not stop infrastructure development projects in strategic areas along the nearly 3,500-km Sino-India border notwithstanding China's well-coordinated efforts to stall them by attempting to vitiate the situation in areas like eastern Ladakh, Government sources have said.

Upcoming Defence Exhibitions

BRAHMOS Missile Systems

Headlines

Brahmand World Defence Update 2020

Brahmand World Defence Update

Image Gallery