View source for Chronology/Radar Observations

<h2>Chronology: Radar Observations</h2>
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<p>This article presents extracts from the {{SIR2018/Ref}} which have been selected because the content is a chronology of events related to Malaysia Airlines flight MH370.</p>
<p>Each event in this chronology has been linked to a Timeline Event in the main Timeline articles on this site. This provides a cross-link or check on the well known events.</p>
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<h5>Background Notes</h5>
<p>After MH370 passed waypoint IGARI the aircraft should have announced it's entry into the Vietnamese FIR by contacting Ho Chi Minh ATC as instructed by Malaysian air traffic control. Instead, the flight diverted west across Malaysia and north west along the Malacca Strait.</p>
<p>During that transit across Malaysia the aircraft was captured by air traffic control primary radar, which they did not notice; and by military primary radar, to which the military did not respond in any way. The military radar tracking data has not been released to the public or independent investigators. The ATC radar data track is shown in a diagram without much detail.</p>
<p>The information available about the radar tracking of an aircraft believed to be MH370 is simply a narrative in the Introduction section of the {{SIR2018/Ref}}. Extracts from this section are provided below. Some links to events in the Timeline may have been added.</p>

<h5>Radar Observations and the Timeline</h5>
<p>Radar tracking provides a context during which other specific events occurred. Two sections in particular are 1) the turnback across peninsula Malaysia and beyond, and 2) the response by air traffic controllers. These are discussed below:-</p>
<ol>
     <li><p><b>Turnback across peninsula Malaysia and beyond</b>:</p>
<p>This section of the flight is presented in two sections of the Flight MH370 Timeline. These are:-</p>
<ol>
   <li>[[Timeline/SCS-SoM|South China Sea to Straits of Malacca]]</li>
   <li>[[Timeline/SoM-ANDS|Straits of Malacca to Andaman Sea]]</li>
</ol>
<p>Both periods of time include radar observations by civilian air traffic control primary radar (which went unnoticed) and military primary radar which captured the aircraft but no action was taken because it was deemed to present no threat.</p>
</li>
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     <li><p><b>[[Timeline/Response/ATC|Response by Air Traffic Controllers]]</b>:</p>
<p>This section of the Timeline details the sequence of events as air traffic controllers struggled to comprehend that MH370 did not continue towards Beijing through Vietnamese airspace; and while they were wondering where it was and making phone calls and asking questions the evidence of a turnback was in front of them on their radar screen. The 'blip' that represented the 'missing' aircraft was captured by civilian primary radar. Like the military observations there were periods of actual data, periods of 'coasting' - where the radar interpolates a track between actual radar responses - and periods of interrupted data. This is difficult to represent as a chronology (because the observations are not discrete events), but easier to show as a background or context for all the other activities involved in the Initial Response to the 'disappearance' of MH370.</li>
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<h4>1.1 History of the Flight</h4>
{{SIR 2018:1 Factual Information/1.1/1.1.3/1 Malaysian Military Radar}}
{{SIR 2018:1 Factual Information/1.1/1.1.3/2 DCA Civilian Radar Data}}
{{SIR 2018:1 Factual Information/1.1/1.1.3/4 Kuala Lumpur ACC Radar}}
<p style="text-align:center"><u>Source</u>: {{SIR2018/FullRef}}</p>

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[[Category:Chronologies]]
[[Category:Straits of Malacca to Andaman Sea]]
[[Category:South China Sea to Straits of Malacca]]