The data had long led authorities to conclude that Malaysia Airlines Flight 370 went down without survivors, but an international hunt has yielded no sign of the plane and family members of those on board pushed hard for release of the data. British satellite company Inmarsat released a 47-page dossier on Tuesday after holding off for months in deference to the Malaysian government, which has headed up search operations for the plane.
Both parties announced last week that they had agreed to publish their records.
The plane departed from Kuala Lumpur en route to Beijing early on March 8 with 239 people aboard, but the plane disappeared from radar screens approximately 40 minutes later.
Authorities have had to rely largely on the British firm’s data, which consisted of hourly maintenance signals sent from the craft. Based on Inmarsat’s information, experts concluded that the craft likely went down in the southern Indian Ocean. No physical evidence has yet been recovered from the large swath of ocean where the plane is believed to have crashed.
Some family members remain skeptical of where the search is focused and wary of information released by a Malaysian government who they trust little.
"I think far too much has been left to experts who have remained behind the curtain," K.S. Narendran, whose wife Chandrika Sharma was on the flight, told CNN.