IO-26
ITAMSAT · amateur radio satellite, NORAD 22826
Not heard todayIO-26 frequencies
| Uplink | Downlink | Beacon | Mode |
|---|---|---|---|
| — | 435.772 MHz | — | BPSK 1k2 |
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 IO-26
IO-26 (Italy-OSCAR 26), also called ITAMSAT, is a microsatellite built by AMSAT Italia. It was launched on 26 September 1993 on an Ariane 4 rocket from Kourou together with the SPOT 3 Earth-observation satellite and a group of small satellites that included EYESAT-1 (AO-27), KITSAT-2 and PoSAT-1.
ITAMSAT was based on the same AMSAT-NA Microsat design as PACSAT (AO-16) and LUSAT (LO-19). It carried a digital store-and-forward transponder for 1200 bps AX.25 packets, with 2 m uplinks and a 70 cm downlink (Mode JD), using the PACSAT protocols for uploading and downloading messages and files.
IO-26 and AO-27 were released from the same launch and are still in almost identical orbits of about 790 km.
Status
Listed as working, but nobody reported hearing IO-26 on AMSAT in the last 30 days.
From reports filed on AMSAT, last 30 days.
Orbit
| Type | Low Earth orbit |
|---|---|
| Altitude | 780–794 km |
| Inclination | 98.7° |
| Period | 100.6 min |
| TLE epoch | 2026-10-28 10:08 UTC |
Orbital elements: CelesTrak, checked every 3 hours.
Questions about IO-26
- What is the IO-26 downlink frequency?
- IO-26 transmits on 435.772 MHz (BPSK 1k2).
- Is IO-26 active?
- Listed as working, but nobody reported hearing IO-26 on AMSAT in the last 30 days.
- When does IO-26 pass over my location?
- Open IO-26 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.