Turkish Airlines cargo 747 crashes in Kyrgyzstan

[DaveReidUK]

Originally Posted by Airbubba

Here's a previously posted link to the 'additional' data:

https://blog.flightradar24.com/blog/...ta-TK6491.xlsx

It will open as a spreadsheet and you can see that the track is consistently about 260 degrees.

Well yes and no.

Certainly if you look at the 130 or so transmissions from the aircraft in those last 50 seconds that specify track, groundspeed and Vrate, they all show a consistent track of around 260°. After all, you would expect the aircraft to know which direction it's moving in.

But if you try to plot the similar number of position reports in chronological order, you will find several points where the implied track is reversed such that the aircraft appears to be moving briefly eastwards.

The reason for that isn't hard to work out for anyone who understands how FR24 and ADS-B work, and it should ring alarm bells with anyone who is thinking of trying to derive second-order parameters (not just track) from the sequence of static data points.

Unfortunately it doesn't seem to have ...