ARCSAT-1

ARCSAT-1 is an active satellite operated by Norwegian Defence Research Establishment (Norway), launched on 2022-04-01 from Cape Canaveral, Florida. It orbits in Low Earth Orbit (LEO) at altitudes between 403 km and 410 km with an inclination of 97.3°. It travels at approximately 27,608 km/h (7.67 km/s), completing one full orbit every 93 minutes — that’s roughly 15.54 orbits per day. Its near-polar, sun-synchronous orbit means it passes over any given point on Earth at approximately the same local solar time, ideal for consistent Earth observation lighting conditions. Its near-circular orbit (eccentricity close to zero) means it maintains a very consistent altitude throughout each revolution. At its current altitude, the estimated orbital lifetime before atmospheric re-entry is ~1–3 years. Orbital Radar tracks ARCSAT-1 in real time using the latest two-line element set (TLE) data, providing live position, altitude, speed and orbital path updated continuously.

ARCSAT-1 orbits at an average altitude of 407 km in a sun-synchronous orbit (SSO), a specialised subset of LEO where the orbital plane precesses to maintain a constant angle relative to the Sun. This provides consistent lighting conditions on every pass — essential for Earth observation, weather monitoring and environmental science. Within ±50 km of ARCSAT-1’s average altitude, there are currently 1,093 active payloads and 98 tracked debris or rocket body fragments — notable neighbours include STARLINK-1008, STARLINK-1012, STARLINK-1020. This makes it one of the more crowded altitude bands, containing roughly 6.3% of all active satellites. With an inclination of 97.3°, ARCSAT-1 passes over latitudes between 97.3°N and 97.3°S, providing near-global coverage including the polar regions. Polar and near-polar orbits are used for reconnaissance, weather monitoring and Earth-observation missions that need to image every part of the planet. Norway operates approximately 26 active satellites in total, of which 3 share a similar altitude band with ARCSAT-1.