By the Associated Press
The U.S. Pacific command said it was sending a black box locator in case a debris field is located. The Towed Pinger Locator, which is pulled behind a vessel at slow speeds, has highly sensitive listening capability so that if the wreck site is located, it can hear the black box pinger down to a depth of about 20,000 feet (6,100 meters), Cmdr. Chris Budde, a U.S. Seventh Fleet operations officer, said in a statement.
“This movement is simply a prudent effort to preposition equipment and trained personnel closer to the search area so that if debris is found we will be able to respond as quickly as possible since the battery life of the black box’s pinger is limited,” Budde said.
The ocean depth in the search area ranges between 1,150 meters (3,770 feet) and 7,000 meters (23,000 feet).
“The time for the battery life (of the pinger) is potentially only a month,” said Jason Middleton, aviation professor at the University of New South Wales in Sydney. “If debris was found, it would be terrible not have anything on site and waste time” getting a ping detector to the region. “I think they’re planning ahead and getting it ready.”
In Paris, French Foreign Ministry spokesman Romain Nadal said in an interview with The Associated Press that the satellite radar echoes “identified some debris that could be from the Malaysian Airlines plane.”
The spokesman said that these echoes “are not images with a definition like a photograph, but they do allow us to identify the nature of an object and to localize it.”
Gathering satellite echo data involves sending a beam of energy to the Earth and then analyzing it when it bounces back, according to Joseph Bermudez Jr., chief analytics officer at AllSource Analysis, a commercial satellite intelligence firm.
Satellite radar echoes can be converted into an image that would look similar to a black-and-white photo, though not as clear, he said. “You’d have to know what you’re looking at,” Bermudez said.
Australian Transport Minister Warren Truss said the French radar data located the objects about 850 kilometers (520 miles) north of the current search area, and that “we need to check that out as well.”