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MH370 satellite data released

MH370 communication log
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Malaysia and a British satellite data company have released raw communications data related to Malaysia Airlines flight MH370 that disappeared on March 8.

Malaysia’s Department of Civil Aviation (DCA) said in a statement on Tuesday it had worked with Inmarsat to provide 47 pages of data communication logs.

The DCA said the data included an explanation to guide readers.

“Inmarsat and the DCA have been working for the release of the data communication logs and the technical description of the analysis,” the department said.

The highly technical numerical data used the Doppler effect – the change in frequency of waves from a moving object – to decipher the Boeing 777’s final flight path.

An international investigation team led by Malaysia has concluded that it flew south after it was last spotted on Malaysian military radar about 90 minutes after takeoff and ended up in the southern Indian Ocean off Australia.

This is based on complex calculations derived in part from hourly transmissions between the plane and a communications satellite.

Malaysian authorities have been tight-lipped on details, saying they can only divulge information once it has been verified and when its release will not affect ongoing investigations into the plane’s disappearance.

The DCA has previously stressed that satellite data was just one of several elements being examined by investigators.

Some family members of the people on board the Malaysia Airlines plane, who have been critical of the Malaysian government’s handling of the incident, say they want independent experts to review the data.

“Finally, after almost three months, the Inmarsat raw data is released to the public,” said a post on the Facebook page of relatives of people aboard the missing aircraft.

“Hope this is the original raw data and can be used to potentially ‘think out of the box’ to get an alternative positive outcome,” it said.

The plane vanished about an hour into a night flight from Kuala Lumpur to Beijing with 239 people on board, mostly Chinese nationals.

Malaysia bore the brunt of the criticism, especially from Chinese relatives, over alleged lack of transparency and the bungling of the search operations.

Searches so far have failed to locate the missing plane. Australia, which is leading the hunt in the Indian Ocean, has committed up to $US84 million ($A90.88 million) towards the search operation over two years.