Lost & found after 7 years: Chandrayaan-1 spotted orbiting moon

China To Launch Lunar Space Probe Before Year's End

The Indian spacecraft, Polar Sattelite Launch Vehicle -C11 (PSLV) takes off carring India's first lunar probe Chandrayaan-1 at the Satish Dhawan Space Centre in Sriharikota, around 110KM north of southern Indian city of Chennai on October 22, 2008. Over a two-year period, it was meant to survey the lunar surface to produce a complete map of its chemical characteristics and three-dimensional topography.

However, JPL was recently trying out new ways to find objects in space and it thought that due to its small size the lost Chandrayaan-1 was a ideal test candidate that would allow it to truly test its new techniques.

"Finding Chandrayaan-1 required a bit more detective work because last contact with the spacecraft was in August 2009", Marina Brozovic, a radar scientist at the Jet Propulsion Laboratory (JPL) and principal investigator of the test project, said in a JPL media release.

The researchers were skeptical about the technique's success, as it is normally used to detect asteroids that are several million miles from Earth.

Hunting down LRO and rediscovering Chandrayaan-1 spell a new way to track astronauts from the ground. The agency has now done it again, locating an Indian spacecraft that lost contact with the Earth almost eight years ago.

NASA has announced that a new radar technique has enabled it to find a pair of lunar spacecraft in orbit around the moon, one that is active and another that is dormant. They used this radar to pinpoint the location of Nasa's own Lunar Reconnaissance Orbiter (LRO), but this was easy as they had precise orbital data for the LRO.


The cube-shaped Chandrayaan-1, roughly half the size of a Smart vehicle, was discovered orbiting the moon 124 miles above the surface.

According to researchers, Chandrayaan-1 proved to be the flawless target for demonstrating the capability of this technique.

Faced with the immensity of space, optical telescopes and interplanetary radar have difficulty detecting objects, even more so when they are extremely small and close to the Moon. It is what happened to Chandryaan-1: with its cube shape and its sides of a meter and a half, it was until then untraceable.

DSS-14 is NASA's 230-foot antenna located at the Goldstone Deep Space Communications Complex in California. The orbiter was inserted into lunar orbit on 8 November 2008 and was expected to remain operational until at least 2010.

Over the next three months, the group listened to the radar "echoes" bounced back by the spacecraft, which were received by NASA's 330-foot Green Bank Telescope in West Virginia, along with the Arecibo Observatory in Puerto Rico. It had found the evidence of water ice on the moon's surface. All interplanetary radars use microwaves, but not all of them are developed equally.

Related News:



Most liked

AXE ATTACK: Several injured after armed men storm German train station
Police in Germany sealed off Duesseldorf's main railway station late on Thursday evening following reports of an axe attack. Authorities in Dusseldorf , Germany responded to a report of an "axe attack" at the city's train station March 9.

Jones tweaks side for Scotland showdown
The pack is unchanged but Billy Vunipola comes into the replacements after his quicker-than-expected recovery from a knee injury. In two other changes announced by Jones on Thursday Jack Nowell will start on the right wing and Ben Youngs at scrumhalf.

Samuel L Jackson Wants To Make American Cinema Great Again
Asked why the trend toward British actors exist, Jackson explained , "They're cheaper than us, for one thing". Jackson did admit that there are some things that are universal, not everything is.

JCC leaders demand Sessions be a 'stronger partner' against continued threats
The museum is a popular site for schools and other children's groups to learn about Judaism in a hands-on, experiential manner. The No. 3 subway station is also located across the street from the museum, but trains have continued running on schedule.

Here's Trump's message for International Women's Day
I mean, what can you do without a woman today? Supporters have been encouraged to wear red to show solidarity with the strikers. A group of female CTA employees rallied for better working conditions at the transit authority's headquarters in Chicago.

You Can Eat Just Like Tom Brady With This Meal Delivery Program
And if you say you knew what a "nightshade" was before Brady talked about them you're a dirty, dirty liar. Forget the TB12 package, I'd like to see a Phelps meal plan you can make at home.

China urges U.S. and North Korea to avert 'head-on collision'
Defense Department officials said the missile launch posed no threat to North America. The United States and Japan on Monday requested an emergency meeting of the U.N.

Patriots could want two first round picks for Jimmy Garoppolo
Belichick and the Patriots will be looking to create a similar bidding battle in order to up the ante on a Garoppolo deal. And as usual with a kingpin such as Belichick, the eventual and inevitable trade will be on his terms when it happens.

Shiv Sena's Vishwanath Mahadeshwar is the new mayor of Mumbai
But Mahadeshwar is facing legal trouble after a case has been filed in the court challenging his election. He has been a member of the education committee in one of his earlier terms.

USA Network's Unsolved pilot casts its Biggie and Tupac
In 2011, Kading authored Murder Rap: The Untold Story of the Biggie Smalls & Tupac Shakur Murder Investigations. You might remember Rose's brief portrayal of 2Pac in 2015's N.W.A biopic, Straight Outta Compton.

India's tallest tricolour standing 360 feet tall hoisted at Attari border
Terming this as his dream project, Joshi said he took special permission from the Election Commission for the inauguration. The Tricolor was hoisted on the country's tallest flag post (360 feet) at the Indo-Pak Attari Border on Sunday.

Ibrahimovic, Mings charged with violent conduct
He will return in the home game with Everton on April 4, but remains eligible for the Reds' Europa League clashes with FC Rostov . The veteran striker will miss the FA cup match against Chelsea and the league matches against Middlesbrough and West Brom .

Daycare worker charged after security camera captures her shoving child down steps
Gable, however, is now out on bail and is facing charges of simple assault, harassment and endangering the welfare of a child. Gable was released on $25,000 unsecured bail after being arraigned March 4 and will appear before Judge Kelly A.

Bank of America reportedly financing proposed Las Vegas stadium
NFL owners could vote on the relocation proposal at the annual league meetings, this year held in Arizona from March 26-29.

Facebook Inc (NASDAQ:FB) Introduces New 'Dislike' Reaction Button On Messenger
Users can also use other emoji such as the heart eyes, laughing, crying, angry, surprised and the original thumbs up. You can view all reactions occurring under a specific message by clicking the mouse or clicking on the mouse.