Foresail-1p
Mission information
Name
Foresail-1p
Alternate Names
OH2F1S, FS1p, Foresail-1 Prime
Satellite ID
VVCO-9182-2144-7766-7316
NORAD ID
66778
Website
https://foresail.github.io/
Country of Origin

Finland

Status
Satellite alive
Operational

Satellite is in orbit and operational

Image
Foresail-1p
Mission timeline
Launch Date
2025-11-28T18:18:00+00:00
Deploy Date
2025-12-09T09:18:59+00:00
Description

Foresail-1p is 3U Cubesat launched in November 2025 on the Space-X Transporter-15 mission. The satellite is developed by Aalto University in Finland, with rest of FORESAIL consortium, and serves as a successor to Foresail-1 mission. The mission involves both radio amateur and space science mission aspects. It has two main payloads: a particle telescope (PATE) for measuring LEO radiation environment, developed by the University of Turku, and a technology demonstration called Plasma Brake developed by Finnish Meteorological Institute. The Plasma Brake (PB) aims to demonstrate a propellant-less way of altering a satellite's orbit as well as eventually de-orbiting it, using Coulomb drag.

For the radio amateurs the mission demonstrates a new Skylink framing protocol for easy and reliable satellite communication protocol and the amateurs can work via satellite using repeater virtual channel. See more details here https://community.libre.space/t/foresail-1p-skylink-digipeater/14427

The website is https://foresail.github.io/.

SatNOGS Links
Network Observations Telemetry Dashboard
MODE U - GMSK 9k6 TLM Skylink
Copy UUID Citation
Type
Transmitter
Service
Amateur
Downlink Mode
GMSK
Downlink Frequency
437125000
Baud
9600
IARU Coordination
IARU Coordinated
Updated by dl7ndr and reviewed on 2026-03-13 15:55 by fredy
Mode U/U - GMSK9k6 - Digipeater - Skylink
Copy UUID Citation
Type
Transceiver
Service
Amateur
Downlink Mode
GMSK
Downlink Frequency
437125000
Baud
9600
Uplink Mode
GMSK
Uplink Frequency
437125000
IARU Coordination
IARU Coordinated
Updated by dl7ndr and reviewed on 2026-03-13 15:55 by fredy
Most Recent Observers (last 24h)
Observer Latest Data
EU1XX-KO33ru 2026-03-26 21:22:20 UTC
DL7NDR-JN48ap 2026-03-26 21:21:40 UTC
Data Frames Decoded - 30 Days
There is no decoded data for this satellite in the last 30 days.
Click here to see the full dashboard for Foresail-1p
Decoder: FORESAIL-1P Telemetry
Script Name
foresail1p
Decoder Fields
Click here
Orbital Elements
Latest Two-Line Element (TLE)
TLE Source
Space-Track.org
TLE Updated
2026-03-27 05:19:50 UTC
TLE Set 
1 66778U 25276DS  26085.61576296  .00005649  00000-0  28194-3 0  9990
2 66778  97.4249 160.4283 0003476  59.8435 300.3143 15.17890662 17871
Satellite Suggestion History
Transmitter Suggestion History