25 March 2014

How British Company Inmarsat Tracked Down Malaysia Airlines Flight MH370?

The mystery of the missing Malaysian Airlines flight MH370 still baffles more citizens. How could a flight MH370 disappear off on its track? People came up with theories and speculations on what exactly happened with the Boeing 777.

Is it some sort of Alien abduction? Or Government & company conspiracies? 

Malaysia Airlines Flight MH370 was disappeared over the South China Sea on March 8, 2014, with 239 total onboard (12 Crew Members and 227 passengers).

According to the British Satellite Telecommunications Company, Inmarsat, which believed that it have been tracked down the Missing Plane: Malaysian Airlines Flight MH370 at Middle of Indian Ocean, West of Perth using Doppler Effect technique.

Malaysian papers turn black in tribute to crashed jet TheStarOnline

With the Inmarsat pieces of evidence, Malaysian Prime Minister, Najib Razak, announced to the media on Monday
“It is therefore with deep sadness and regret that I must inform you that, according to this new data, Flight MH370 ended in the southern Indian Ocean.”
"For them, the past few weeks have been heartbreaking; I know this news must be harder still,"


Image credits: Telegraph UK { source }

It was revealed that the missing plane was tracked down over 1,200 miles from Perth, Southern Indian Ocean, based on the Unprecedented analysis from UK Satellite Company Inmarsat.

"This is a remote location, far from any possible landing sites. It is therefore with deep sadness and regret that I must inform you that, according to this new data, flight MH370 ended in the southern Indian Ocean." ~ Najib Razak

Image courtesy: http://www.mirror.co.uk/ | Source
How British Company Inmarsat Tracked Down Malaysia Airlines Flight MH370?

Britain Satellite Telecommunication company, Inmarsat, discovered the missing plane flight MH370 by using a WAVE Phenomenon to analyze the Seven(7) pings with its satellite picked up from Malaysia Airlines flight MH370 to track its final location. 

Black Boxes
Accordingly, the Positing System of a plane is controlled by a switch on the black box. However,  BBC reports said that black boxes can't always provide the answers.

There are actually two boxes - a cockpit voice recorder and a data recorder.
Image source: BBC [link]

The limitations are which believed cannot provide answers: Source [BBC]
  • Voice recorder only records the final two hours
  • The battery lifespan is short
  • It is a small size object and difficult to find
  • Black boxes: It doesn't float
  • The pinger's range is only a few miles 
Classic Aero Satellite System
In a plane, it was globally recognized to support satellite system called Classic Aero operated by Inmarsat. Classic Aero supports ‘aircraft communications addressing and reporting system’ (ACARS), a system that collects and gathers onboard information (location, speed, altitude) and transmits back to Inmarsat's network.

What is ‘aircraft communications addressing and reporting system’ (ACARS)

ACARS can be configured by the AIRLINE to transmit data frequently or infrequently. For planes fly over North Atlantic routes, it is MANDATORY to use ACARS however not in ASIAN Routes. That is why in the case of flight MH370, ACARS was switched off. Since ACARS transmits data, no data was being transmitted.

According to the Telegraph report, switching off the ACARS is UNUSUAL, yet it is not HARD to OFF. Because the switch is located either on a ceiling unit or on the deck between the pilot and co-pilot, down behind the throttles. Inmarsat's chief officer explained that pilots are OBLIGED to TURN the system off only if AIRCRAFT is lacking power or there is FIRE on BOARD. On the other side of speculation, it could be a HIJACKER switched the system off to prevent it from transmitting the information(such as plane's location).

Inmarsat's Doppler Effect Technique

Image: www.physicsclassroom.com
According to Mirror.co.uk report, Inmarsat's Senior VP, Chris McLaughlin, announced that the company used "DOPPLER EFFECT" to determine the area where the Malaysia Airlines Flight MH370 crashed.

Pings: Doppler Effect Image: www.smh.com.au
Doppler Effect describes how a wave of changes frequency about the movement of a satellite. Inmarsat's scientists then interrogated the faint pings.
Pings are automatically transmitted every hour from the aircraft after the rest of its communications systems stopped, indicated it continued flying for hours after it disappeared from its flight path from Kuala Lumpur to Beijing. ~ {source}
From the time the signals took to reach the satellite and the angle of elevation, Inmarsat was able to provide two arcs, one north and one south that the aircraft could have taken.

Malaysia's Prime Minister Razak told media at his emergency press conference this afternoon:
"They informed me that Inmarsat, the UK company that provided the satellite data which indicated the northern and southern corridors, has been performing further calculations on the data.
 Never been used before still shed light on plane path
"Using a type of analysis never before used in an investigation of this sort, they have been able to shed more light on MH370’s flight path.
Last position located the middle of the Indian Ocean, west of Perth. 
"Based on their new analysis, Inmarsat and the AAIB have concluded that MH370 flew along the southern corridor and that its last position was in the middle of the Indian Ocean, west of Perth. 
"This is a remote location. Far from any possible landing sites. It is therefore with deep sadness and regret that I must inform you that, according to this new data, flight MH370 ended in the southern Indian Ocean."
References:

1. http://www.telegraph.co.uk/technology/news/10719304/How-British-satellite-company-Inmarsat-tracked-down-MH370.html
2. http://www.telegraph.co.uk/news/worldnews/asia/malaysia/10718181/Malaysia-Airlines-MH370-live.html
3. http://www.smh.com.au/world/mh370-search-how-new-satellite-data-confirmed-malaysia-airlines-plane-was-lost-20140325-hvme8.html
4. http://www.mirror.co.uk/news/uk-news/malaysia-airlines-flight-mh370-uk-3278317
5. http://www.iol.co.za/news/world/flight-mh370-and-the-doppler-effect-1.1665833#.UzBVXaiSzTo
6. http://www.abc.net.au/news/2014-03-25/british-satellite-interrogated-mh37027s-pings-to-plot-final-ro/5342690
7. https://www.facebook.com/TheStarOnline



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