What is the RS51S downlink frequency?

RS51S transmits on 10473.000 MHz (QPSK 1000k).

What is the RS51S beacon frequency?

The beacon is on 436.200 MHz and 436.200 MHz.

When does RS51S pass over my location?

Open RS51S on the live map and enter your Maidenhead locator or use GPS: the tracker lists the passes of the next 24 hours with AOS, maximum elevation and LOS, and shifts the frequencies for Doppler.

RS51S

RTU MIREA 1 · amateur radio satellite, NORAD 61785

Not heard today

Modes Digi Orbit LEO, 91 min

Track RS51S on the live map Find it in the sky

Next passes over your station

Pass times depend on where you are. Track RS51S on the live map to see its next passes over your station.

RS51S frequencies

Uplink	Downlink	Beacon	Mode
—	—	436.200 MHz	CW
—	10473.000 MHz	—	QPSK 1000k
—	—	436.200 MHz	GFSK 9k6

Nominal frequencies, without Doppler. The live map shifts them for your station during a pass. Frequencies: SatNOGS DB (modified: working amateur transmitters only, in MHz), CC BY-SA 4.0.

Status

Listed as working, but nobody reported hearing RS51S on AMSAT in the last 30 days.

From reports filed on AMSAT, last 30 days.

Orbit

Type	Low Earth orbit
Altitude	309–320 km
Inclination	97.3°
Period	90.8 min
TLE epoch	2026-10-28 15:12 UTC

Orbital elements: CelesTrak, checked every 3 hours.

Questions about RS51S

What is the RS51S downlink frequency?: RS51S transmits on 10473.000 MHz (QPSK 1000k).
What is the RS51S beacon frequency?: The beacon is on 436.200 MHz and 436.200 MHz.
Is RS51S active?: Listed as working, but nobody reported hearing RS51S on AMSAT in the last 30 days.
When does RS51S pass over my location?: Open RS51S on the live map and enter your Maidenhead locator or use GPS: the tracker lists the passes of the next 24 hours with AOS, maximum elevation and LOS, and shifts the frequencies for Doppler.