NOSS or some GEO Sigint? I wonder if they forgot to turn off the weather radar?
Satellite company says it registered signalsInmarsat, the £3bn satellite company, registered “routine, automated signals” from MH370 on its network, the company said in a brief statement on its website.The statement does not mention for how long the signals were received or when they stopped.Here’s the statement in full:14 March 2014: Inmarsat has issued the following statement regarding Malaysia Airlines flight MH370.Routine, automated signals were registered on the Inmarsat network from Malaysia Airlines flight MH370 during its flight from Kuala Lumpur.This information was provided to our partner SITA, which in turn has shared it with Malaysia Airlines.For further information, please contact Malaysia Airlines.“Such signals are very reliable,” but would not indicate location, an Inmarsat executive told NPR’s Frank Langfitt:David Coiley, vice president of aviation at Inmarsat, declined in an interview to discuss the specifics of the Malaysia Airlines case. But he said that in general, such signals are very reliable. ‘I‘d say way over 99 percent. It’s highly unusual to get a false positive that the system was still operating when in fact it wasn’t,’ he said.” [...]Coiley, the Inmarsat executive, told Frank that the pings received by its satellites would not include data on altitude or a plane’s position.
Taken from the Guardian newspaper live coverage so no link.QuoteCoiley, the Inmarsat executive, told Frank that the pings received by its satellites would not include data on altitude or a plane’s position.
Coiley, the Inmarsat executive, told Frank that the pings received by its satellites would not include data on altitude or a plane’s position.
Quote from: Robotbeat on 03/10/2014 08:59 pmThere are two ways that modern satellite constellations can help events like this in the future:1) Improve black boxes by constantly streaming data over the whole trip in real-time. We're already starting to get satellite internet on some flights (I'm talking satellite internet, not the usual cell tower based internet that is normal for in-flight wifi now), so adding another data stream wouldn't be insurmountable at all. No, adding a data stream wouldn't be hard at all. Adding several thousand of them would be. With satellite footprints getting smaller in polulated areas and coverage being pretty sparse outside of the main coverages, it wouldn't be easy to have real time data to every plane in the sky. As for the lack of debris, the plane could have ditched intact and sunk.
There are two ways that modern satellite constellations can help events like this in the future:1) Improve black boxes by constantly streaming data over the whole trip in real-time. We're already starting to get satellite internet on some flights (I'm talking satellite internet, not the usual cell tower based internet that is normal for in-flight wifi now), so adding another data stream wouldn't be insurmountable at all.
To the OP: Unable, or not willing to divulge capabilities?
Iridium currently doesn't have the bandwidth to stream the black boxes from the entire civilian fleet. ...
There are 88 parameters required as a minimum under current U.S. federal regulations (only 29 were required until 2002), but some systems monitor many more variables. Generally each parameter is recorded a few times per second, though some units store "bursts" of data at a much higher frequency if the data begins to change quickly.
Per Wikki:http://en.wikipedia.org/wiki/Flight_data_recorderQuoteThere are 88 parameters required as a minimum under current U.S. federal regulations (only 29 were required until 2002), but some systems monitor many more variables. Generally each parameter is recorded a few times per second, though some units store "bursts" of data at a much higher frequency if the data begins to change quickly. Good luck fitting that into a 200 bit/s data stream. And that's data, and does not include voice. Remember most voice compression techniques are lossy, meaning you introduce artifacts. Something you definitely don't want when analyzing a black box. You will also notice with MH370 was transmitting ACARS over VHF instead of Satcom when in range of VHF stations. If unlimited bandwidth was available they would not have been offloading the ACARS reports onto VHF when ever they had a chance.
People Overload Website, Hoping To Help Search For Missing Jet.http://www.npr.org/blogs/thetwo-way/2014/03/11/289119521/people-overload-website-hoping-to-help-search-for-missing-jet
I think I should reiterate, they did not fully solve the AF447 accident until they recovered the black boxes. Yes you need the full stream.It also doesn't help if the pilot can switch off the unit, like happened in MH370. If the transponder and ACARS had not been switched off, we would know where this plane was. An argument can be made for hardened realtime tracking that can not be switched off. An arguement can also be made for better Radar coverage in this area. It took them 10 days to find Adam Air Flight 574.You're also assuming with Iridium NEXT that SpaceX will get it's act together and launch on time