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|Posté le: Lun 6 Aoû - 04:38 (2018) Sujet du message: Xu, 45, was traveling
|FOREIGN201707191436000082369173593 by Xinhua writers Quan Xiaoshu Jesus Manuel Corona World Cup Jersey , Yu Fei, Qu Ting
BEIJING, July 19 (Xinhua) -- China's first X-ray astronomical satellite, launched in mid June, is expected to start regular observation in November and its data will be open to scientists all over the world, say the main designers of the satellite's data system.
The 2.5-tonne Hard X-ray Modulation Telescope (HXMT), dubbed Insight Jesus Duenas World Cup Jersey , transmitted to a ground station its first data on its second day in orbit. The data proved to be of good quality, and the telescope detected a gamma-ray burst 10 days after its launch.
HXMT carries a trio of detectors -- the high energy X-ray telescope (HE), the medium energy X-ray telescope (ME) and the low energy X-ray telescope (LE) -- that cover a broad energy band from 1 keV to 250 keV. It will help scientists better understand the evolution of black holes and the strong magnetic fields and interiors of pulsars.
"We will finish calibrating all instruments within the first five months in orbit before Insight starts regular observation," said Song Liming, deputy chief designer of the HXMT science ground segment and a scientist with the Institute of High Energy Physics (IHEP) of the Chinese Academy of Sciences (CAS).
Song and his team solicited observation proposals from scientists around the country last year, and drew up a one-year observation plan after evaluating 90 proposals from six CAS institutes and 10 universities.
"After starting regular observation, the telescope will spend 30 to 40 percent of its first year scanning the Galactic plane and the rest of the time on pointing observation Javier Hernandez World Cup Jersey ," said Qu Jinlu, deputy chief designer of the HXMT science ground segment and a scientist with IHEP.
"We divide the galactic plane into 19 sky zones. It will take the telescope over two hours to scan each and about two days to finish the whole, if we don't count the time to avoid the sun," said Qu.
Insight will see recurrent or even periodic outbursts of known sources, and is good at searching for new sources that are transiently bright in X-rays.
"If the telescope detects a new source, we will assess its scientific value right away to decide whether it's worth a pointing observation," Qu explained.
Song said experts who have contributed to the HXMT project Javier Guemez World Cup Jersey , both at home and abroad, and those who see their proposals adopted can access and use the observation data exclusively for one year, in line with international practice.
"After one year, the data will be open to everybody. Even middle school students will be able to download our data, if they are interested," Song said.
Song's team will build a calibration database and offer more than 300 data products.
"We will process the original data into products that are up to international standards, so that it's easy for scientists from around the world to analyze for further information Javier Aquino World Cup Jersey , such as the energy spectrum or light curve," Song said.
Before joining the science ground segment, Song was researching the high-energy radiation of pulsars. "The biggest challenge for me was changing from a user to a designer," he said.
Song, like most domestic astronomers, relied on data from foreign satellites in his research, but had never thought how to build a data system.
"How do we make our data available to users? What kind of products shall we offer? We knew nothing when we first started setting up the ground segment Isaac Brizuela World Cup Jersey ," he said.
Song and his co-workers went abroad to learn by asking all kinds of "silly" questions. But sometimes, they had to figure out answers by themselves.
"For example, we had no idea where the background data of those foreign satellites come from, which forced us to study the problem from the very beginning," he said, "We got to know the whole structure and detailed procedures when building the science ground segment, which is our biggest achievement and will help us better support new satellites in future."
BEIJING Hugo Ayala World Cup Jersey , May 24 (Xinhua) -- A procuratorate's investigation into a fatal shooting at a railway station in northeast China has confirmed the legitimacy of the police act following questions from the public.
When police officer Li Lebin shot Xu Chunhe on May 2 at Qing'an County Railway Station in Heilongjiang Province he was acting within the law, according to a statement issued by the railway transport procuratorate of Harbin, the provincial capital.
His use of the firearm conformed with regulations, as well as his responsibilities as a police officer and protector of the peace, the procuratorate's investigation concluded.
The procuratorate's findings are consistent with a previous statement released by the Harbin Railway Police that said the gun had been discharged in the line of duty and Li had not broken any laws or protocols.
Xu, 45, was traveling with Quan Yushun Hirving Lozano World Cup Jersey , his 81-year-old mother, and his three children, when he attacked Li and continued to assault the police officer despite multiple warnings, resulting in the fatal shooting, the statement said.
Xu was confirmed dead at the scene by paramedics who arrived at the scene 25 minutes later.
Surveillance footage of the incident was made public on May 14, but despite this, doubts remained over the authenticity of the tape Hector Moreno World Cup Jersey , the legality of Li using the gun and the cause of the altercation.
There was also speculation that the local government had paid "hush money" to Xu's family to silence them.
It has been confirmed that the surveillance footage was original and not edited. The clip that was disseminated to the public by media outlets was taken from the original footage, said Gao Lei, a forensic examiner with the digital forensic center under the Beijing Network Industry Association.
A witness said, on condition of anonymity, that the online brouhaha questioning the authenticity of the video m. Cheap Soccer Shirts Cheap Hoodies Cheap NBA Hats Cheap MLB Shirts Cheap Soccer Shirts China Cheap NFL Hoodies Cheap Football Shirts Cheap Basketball Hoodies Cheap Hockey Hats Cheap NCAA Hats China