Chinese satellites heading to moon fail to reach orbit after rocket falters
Beijing, Mar 15: A pair of Chinese satellites failed to reach a planned orbit on their way to the moon after experiencing abnormalities, a rare setback for Beijing's high-profile space programme.
The satellites, known as DRO-A and DRO-B, were launched on Wednesday evening from the Xichang Satellite Launch Centre in the Sichuan Province, the launch centre said in a press release on Thursday.
They were carried by A Yuanzheng-1S (Expedition-1S) upper-stage aircraft, attached to a Long March-2C carrier rocket, it said.
The first and second stages of the rocket operated normally, while the upper stage encountered an abnormality during flight, causing the satellites to fail to enter the preset orbit accurately, it said.
The relevant disposal work is currently underway, state-run Xinhua news agency reported, citing the launch centre.
The plan was for the two satellites to head towards the moon and enter a distant retrograde orbit (DRO).
From there, they would fly in formation and work with DRO-L a third satellite that was successfully placed into low-Earth orbit by a Jielong 3 rocket last month to test laser-based navigation technologies between the Earth and the moon, known as cislunar space, the Hong Kong-based South China Morning Post reported.
The DRO orbit is at a high altitude, tens of thousands of kilometres above the lunar surface. It is highly stable, allowing spacecraft to remain on track for a long time without using fuel, and is an advantageous waypoint for research and exploration, according to Chinese scientists.
Long March rockets have been integral to China's space ambitions, including moon missions.
China's manned space station is currently in orbit.
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Rupee falls 9 paise to all-time low of 90.58 against US dollar in early trade
Mumbai (PTI): Rupee depreciated 9 paise to an all-time low of 90.58 against US dollar in early trade on Monday, weighed down by uncertainty over an India-US trade deal and persistent foreign fund outflows.
Forex traders said rupee is trading with a negative bias as investors are in wait and watch mode and awaiting cues from the India-US trade deal front.
At the interbank foreign exchange market, the rupee opened at 90.53 against the US dollar, then fell further to an all-time intraday low of 90.58 against the greenback, registering a fall of 9 paise over its previous close.
On Friday, the rupee had slipped 17 paise to close at an all-time low of 90.49 against the American currency.
Meanwhile, the dollar index, which gauges the greenback's strength against a basket of six currencies, was trading 0.05 per cent lower at 98.35.
Brent crude, the global oil benchmark, was trading higher by 0.52 per cent at USD 61.44 per barrel in futures trade.
On the domestic equity market front, the 30-share benchmark index Sensex was trading 298.86 points lower at 84,968.80, while the Nifty was down 121.40 points at 25,925.55.
Foreign Institutional Investors sold equities worth Rs 1,114.22 crore on Friday, according to exchange data.
"FPIs continue to be in selling mode in equity and debt while RBI has been selling dollars to fund their long positions," said Anil Kumar Bhansali, Head of Treasury and Executive Director Finrex Treasury Advisors LLP.
