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KOSEN-1 (NORAD 49402)

KOSEN-1 is an amateur radio satellite (NORAD 49402) in a LEO orbit 470 by 491 km above the Earth, circling the planet every 94.2 minutes. Right now it is over latitude 43.3°, longitude 172.7° at an altitude of 480 km.

Live position and ground track (past 45 min, next 100 min)

Where is KOSEN-1 now?

Latitude: 43.329°
Longitude: 172.656°
Altitude: 480.1 km
Speed: 7.633 km/s
Footprint radius: 2401 km

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Frequencies and modes

Link	Uplink	Downlink	Mode
Mode HF/U - Onboard SDR	21.125 MHz – 21.15 MHz	435.525 MHz	AFSK
Mode U - AFSK1k2	—	435.525 MHz	AFSK
Mode U - GMSK9k6	—	435.525 MHz	GMSK
Mode U - CW Beacon	—	435.525 MHz	CW

Frequencies are the nominal values from the SatNOGS database and can change. While the satellite is above your horizon the table shows the Doppler-corrected frequencies. For how to use them, read working amateur radio satellites.

Orbit and identity

49402NORAD catalog number

2021-102HInternational designator

Amateur radioCategory

LEOOrbit class

94.21 minOrbital period

470 × 491 kmPerigee × apogee altitude

97.3°Inclination

0.001499Eccentricity

15.2846Revolutions per day

2021Launch year

In orbitStatus (SatNOGS)

NoneOperator

Orbital elements epoch: 2026-10-30T01:47:07 UTC (19 hours ago). Positions drift from reality as the elements age; fresh elements are fetched automatically.

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Positions are computed from public orbital elements (CelesTrak / US Space Force 18th SDS) with the SGP4 model and are accurate to a few kilometres; amateur radio data from the SatNOGS DB (CC BY-SA). Not for navigation or safety-critical use. Method and limits · Radio coverage map · Live HF propagation data