HB9EYARADIO & ADS-B
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Aircraft

OK-KKF

Regular

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Mode S hex
49D306
Type
Gulfstream C-37GLF5
Manufacturer
Gulfstream Aerospace
Serial number
5426
Year built
201313 years old
Operator
Grossman Jet Service (GSJ)
Country of registration
Czechia
First contact
9 May 2016, 08:19
Last contact
6 Aug 2025, 00:38
Logged visits
331

The station's story

Cumulative contact time
89 h
Distinct days
242
Highest captured altitude
45,025 ft
1 corrupted frame(s) excluded from this maximum
Discovery rank
#10,249 of 57,065
Longest contact
0 h 54 min

Same airframe, also seen as

  • N880SRfrom 3 Aug 2021 to 2 Jun 2026 · 65 contacts

These registrations share the same serial number and type according to the reference data. Serial numbers can collide, though: it is a deduction, not a certainty.

Observed callsigns

GSJ (268 contacts, 2016-2020) · ABP (17 contacts, 2020-2021)

Operator as per the registry of 29 Jul 2026; observed callsigns are the freshest measurement.

Visits

CallsignFirst contactAltitude at end of contact
GSJ7W28 May 201735,000 ft
GSJ7W23 May 201737,025 ft
OKKKF4 Apr 201741,000 ft
GSJ7W4 Apr 20178,150 ft
GSJ7W7 Mar 201743,000 ft
GSJ7W28 Feb 201717,575 ft
GSJ7W27 Feb 201741,000 ft
GSJ7W26 Feb 201717,300 ft
GSJ7W23 Feb 20177,750 ft
GSJ7W23 Feb 201719,000 ft
GSJ7W20 Feb 201741,000 ft
GSJ7W16 Feb 201717,100 ft
GSJ7W15 Feb 201738,950 ft
GSJ7W13 Feb 201720,875 ft
GSJ7W9 Feb 201741,000 ft
GSJ7W9 Feb 201716,925 ft
GSJ7W5 Feb 201738,000 ft
GSJ7W2 Feb 201717,075 ft
OKKKF31 Jan 201741,000 ft
GSJ7W28 Jan 201741,000 ft
GSJ7W25 Jan 201717,825 ft
GSJ7W24 Jan 201723,550 ft
GSJ7W23 Jan 201718,375 ft
OKKKF22 Jan 201737,000 ft
GSJ7W19 Jan 201720,700 ft