LO-19
LUSAT · amateur radio satellite, NORAD 20442
Not heard todayLO-19 frequencies
| Uplink | Downlink | Beacon | Mode |
|---|---|---|---|
| 145.840 MHz | 437.150 MHz | — | BPSK 1k2 |
| — | 437.125 MHz | — | CW |
| — | 435.078 MHz | — | — |
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.
About LO-19
LO-19 (LUSAT-OSCAR 19) was built for AMSAT Argentina and named after LU, Argentina's amateur radio prefix. It was launched on 22 January 1990 on the first Ariane ASAP flight from Kourou, together with the SPOT 2 Earth-observation satellite and several other amateur microsatellites, including PACSAT (AO-16), DOVE and WEBERSAT. Like them, it used the AMSAT-NA Microsat design: a box of about 23 cm on a side weighing 14 kg.
LUSAT was a digital store-and-forward "PACSAT" satellite. Stations uploaded messages and files on four 2 m uplinks between 145.84 and 145.90 MHz using 1200 bps Manchester FSK, and downloaded them on 437.125 MHz with 1200 bps BPSK, received in SSB mode.
LO-19 is one of the oldest amateur satellites still tracked by AMSAT, in a sun-synchronous orbit of about 780 km.
Status
Listed as working, but nobody reported hearing LO-19 on AMSAT in the last 30 days.
From reports filed on AMSAT, last 30 days.
Orbit
| Type | Low Earth orbit |
|---|---|
| Altitude | 769–786 km |
| Inclination | 98.9° |
| Period | 100.4 min |
| TLE epoch | 2026-10-28 07:10 UTC |
Orbital elements: CelesTrak, checked every 3 hours.
Questions about LO-19
- What is the LO-19 uplink frequency?
- LO-19 listens on 145.840 MHz (BPSK 1k2).
- What is the LO-19 downlink frequency?
- LO-19 transmits on 437.150 MHz (BPSK 1k2), 437.125 MHz (CW) and 435.078 MHz.
- Is LO-19 active?
- Listed as working, but nobody reported hearing LO-19 on AMSAT in the last 30 days.
- When does LO-19 pass over my location?
- Open LO-19 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.