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Aircraft
HB-KAU
64 of the 562 contacts seen on this address carry an uncertain identity (corrupted frames from neighbours, flagged by the detectors). The figures on this page distinguish contacts attributable to the airframe from contacts on the address; the rarity badge is suspended.
- Mode S hex
- 4B1A7C
- Manufacturer
- Societe De Construction D'avions De Tourisme De D'affaires
- Serial number
- 515
- Year built
- 198541 years old
- Operator
- Flugsportgruppe Grenchen
- Country of registration
Switzerland
- First contact
- 2 May 2016, 14:36
- Last contact
- 5 Aug 2026, 12:35
- Logged visits
- 562
The station's story
- Cumulative contact time
- 201 h
- Distinct days
- 390
- Highest captured altitude
- 24,150 ft
- 64 corrupted frame(s) excluded from this maximum
- Discovery rank
- #9,270 of 57,065
- Longest contact
- 1 h 27 min
- Contacts on this Mode S address
- 565 contacts on the address, 562 under this registration: the address has carried several identities over time.
Observed callsigns
EZS (7 contacts, 2016-2019)
Operator as per the registry of 21.07.2026; observed callsigns are the freshest measurement.
Visits
| Callsign | Route | First contact | Last contact | Altitude at end of contact | Positions |
|---|---|---|---|---|---|
| HBKAU | route not resolved | 22 Feb 2026, 12:2422 Feb 2026 | 22 Feb 2026, 12:45 | 1,900 ft | no position received |
| HBKAU | route not resolved | 4 Feb 2026, 15:374 Feb 2026 | 4 Feb 2026, 15:49 | 5,500 ft | no position received |
| HBKAU | route not resolved | 4 Jan 2026, 15:164 Jan 2026 | 4 Jan 2026, 15:35 | 4,400 ft | no position received |
| HBKAU | route not resolved | 4 Jan 2026, 13:544 Jan 2026 | 4 Jan 2026, 14:10 | 2,600 ft | no position received |
| not transmitted | route not resolved | 31 Dec 2025, 15:0231 Dec 2025 | 31 Dec 2025, 15:05 | 5,300 ft | no position received |
| HBKAU | route not resolved | 28 Dec 2025, 15:1828 Dec 2025 | 28 Dec 2025, 15:32 | 3,600 ft | no position received |
| HBKAU | route not resolved | 10 Dec 2025, 15:0610 Dec 2025 | 10 Dec 2025, 15:27 | 4,100 ft | 634 |
| HBKAU | route not resolved | 15 Nov 2025, 13:4315 Nov 2025 | 15 Nov 2025, 13:54 | 1,700 ft | no position received |
| HBKAU | route not resolved | 11 Nov 2025, 15:2011 Nov 2025 | 11 Nov 2025, 15:43 | 5,100 ft | no position received |
| HBKAU | route not resolved | 11 Nov 2025, 13:5811 Nov 2025 | 11 Nov 2025, 14:16 | 2,400 ft | no position received |
| HBKAU | route not resolved | 4 Nov 2025, 15:574 Nov 2025 | 4 Nov 2025, 16:02 | 3,900 ft | 6 |
| not transmitted | route not resolved | 4 Nov 2025, 15:204 Nov 2025 | 4 Nov 2025, 15:26 | 4,300 ft | no position received |
| HBKAU | route not resolved | 3 Nov 2025, 15:153 Nov 2025 | 3 Nov 2025, 15:40 | 4,600 ft | no position received |
| HBKAU | route not resolved | 31 Oct 2025, 12:5131 Oct 2025 | 31 Oct 2025, 12:55 | 5,300 ft | no position received |
| HBKAU | route not resolved | 31 Oct 2025, 10:5831 Oct 2025 | 31 Oct 2025, 11:03 | 5,700 ft | no position received |
| HBKAU | route not resolved | 30 Oct 2025, 12:0630 Oct 2025 | 30 Oct 2025, 12:30 | 6,500 ft | no position received |
| not transmitted | route not resolved | 26 Oct 2025, 13:3126 Oct 2025 | 26 Oct 2025, 13:35 | 3,600 ft | no position received |
| HBKAU | route not resolved | 5 Aug 2025, 11:595 Aug 2025 | 5 Aug 2025, 12:07 | 3,600 ft | 16 |
| HBKAU | route not resolved | 5 Aug 2025, 11:205 Aug 2025 | 5 Aug 2025, 11:30 | 4,600 ft | no position received |
| not transmitted | route not resolved | 4 Aug 2025, 15:174 Aug 2025 | 4 Aug 2025, 15:18 | 4,600 ft | no position received |
| HBKAU | route not resolved | 31 Jul 2025, 16:4531 Jul 2025 | 31 Jul 2025, 16:49 | 4,800 ft | no position received |
| HBKAU | route not resolved | 31 Jul 2025, 15:5731 Jul 2025 | 31 Jul 2025, 16:05 | 4,200 ft | no position received |
| HBKAU | route not resolved | 31 Jul 2025, 15:1631 Jul 2025 | 31 Jul 2025, 15:25 | 2,500 ft | no position received |
| HBKAU | route not resolved | 23 Jul 2025, 13:2823 Jul 2025 | 23 Jul 2025, 13:35 | 3,900 ft | no position received |
| HBKAU | route not resolved | 23 Jul 2025, 11:5423 Jul 2025 | 23 Jul 2025, 12:04 | 1,700 ft | no position received |