HB9EYA, radio and ADS-B
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Contact

UAL177

N29975B789United AirlinesConfirmed contact

Date
31 Aug 2026
Entry
10:40:09
Exit
11:11:55
Duration
31 min 46 s
Received positions
1,009
Route resolution
From the callsign, confidence 60/100Per the routes referential of 21 Jul 2026.

Contact map

10:40 · 39,000 ft · 531 kt
  • Route resolved from the callsign: Denver International Airport (KDEN) to Rome–Fiumicino Leonardo da Vinci International Airport (LIRF), confidence 60/100. A deduction from the reference data, never a measured path.
  • Measured track: 144 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 min15 min29 min
AltitudeGround speedHover the chart to read the time, altitude and speed at that moment.

Start and end of contact

Start
31 Aug 2026, 10:40
Altitude
39,000 ft
Ground speed
not transmitted
Vertical rate
64 ft/min
Track
Squawk
1167
End
31 Aug 2026, 11:11
Altitude
39,000 ft
Ground speed
485 kt
Vertical rate
-32 ft/min
Track
149.8°
Squawk
1167