HB9EYA, radio and ADS-B
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Contact

ALK504

4R-ALRA333Srilankan AirlinesConfirmed contact

Date
28 Aug 2026
Entry
00:58:40
Exit
01:11:06
Duration
12 min 26 s
Received positions
956
Route resolution
From the callsign, confidence 60/100Per the routes referential of 13 Jul 2026.

Contact map

00:58 · 34,975 ft · 440 kt
  • Route resolved from the callsign: London Heathrow Airport (EGLL) to Bandaranaike International Colombo Airport (VCBI), confidence 60/100. A deduction from the reference data, never a measured path.
  • Measured track: 82 received points, joined in time order. The real captured path, never fabricated.0 ft35,000 ft

'Entry' and 'exit' mark where the station began and stopped receiving the aircraft, at the edges of the antenna's range: not where the aircraft appeared or vanished.

Flight profile

0 ft20,000 ft40,000 ft0 kt300 kt600 kt0 min6 min12 min
AltitudeGround speedHover the chart to read the time, altitude and speed at that moment.

Start and end of contact

Start
28 Aug 2026, 00:58
Altitude
35,000 ft
Ground speed
not transmitted
Vertical rate
-576 ft/min
Track
Squawk
5202
End
28 Aug 2026, 01:11
Altitude
35,000 ft
Ground speed
498 kt
Vertical rate
-672 ft/min
Track
99.2°
Squawk
5202