My apologies to all. David Reid is correct in his criticism of the FR24 data. I now calculate a speed for each data point and in doing so, I find that the ADS-B data FR24 was using wasn't in sync with the capture rate. ( At least that's what it looks like was happening.) In any case, the data cannot be analyzed as finely as I was attempting to do.
Here we have:
Time of data capture, coordinates, elapsed time since last capture, distance traveled in feet and calculated speed for that time in kts.
23:10:54 4.091 s 110.344 e
23:10:57 4.083 s 110.335 e 3 sec 4700 940 kts
23:11:00 4.079 s 110.330 e 7 sec 2503 214
23:11:04 4.075 s 110.325 e 6 sec 2493 249
23:11:07 4.070 s 110.318 e 3 sec 2504 500
23:11:09 4.065 s 110.314 e 2 sec 3324 997
23:11:14 4.061 s 110.308 e 5 sec 2318 278
23:11:16 4.056 s 110.303 e 2 sec 2590 777
23:11:18 4.053 s 110.299 e 2 sec 1946 583
23:11:21 4.050 s 110.296 e 3 sec 1620 324
23:11:28 4.041 s 110.284 e 7 sec 5575 477
23:11:31 4.037 s 110.281 e 3 sec 1874 375
23:10:35 4.031 s 110.273 e 4 sec 3910 586
23:11:38 4.026 s 110.267 e 3 sec 3036 607
23:11:42 4.020 s 110.260 e 4 sec 3604 540
23:11:45 4.015 s 110.254 e 3 sec 3056 611
23:11:49 4.010 s 110.248 e 4 sec 3038 455
23:11:51 4.005 s 110.243 e 3 sec 2750 550
23:11:55 4.000 s 110.237 e 4 sec 3050 457
23:11:58 3.996 s 110.232 e 3 sec 2488 497
23:12:01 3.992 s 110.227 e 3 sec 2490 497
23:12:04 3.990 s 110.226 e 3 sec 1245 249
The last two data captures were invalid.
23:12:34 2.990 s 110.226 e
23:12:37 2.990 s 110.226 e
However, what the FR24 data does indicate -
The average speed for the last 70 seconds of ADS-B data shown by FR24 was 480kts. This is of course different from the reportedly slow ground speeds which must have come from a primary radar.
23:10:54 4.091 s 110.344 e
23:12:04 3.990 s 110.226 e 3 sec 1245 9.33nm 70 seconds = 480kts
The above is actual ADS-B data from the plane, so even if it doesn't give us an accurate picture of the specific airspeeds in this segment of the flight, (as I had hoped) it does seem to be more relevant to understanding the loss of QZ8501 than whether or not all the paperwork for the flight was in order.
And yes, there was other ADS-B information contained in the FR-24 data found here:
https://twitter.com/flightradar24/st...840256/photo/1
And I suspect that there is even more at the FR24 site, although I don't know how helpful it will be,