HYPSO-1

HYPSO-1 is an active satellite operated by NTNU (Norway), launched on 2022-01-13 from Cape Canaveral Space Force Station, United States on the Transporter-3 launch. It orbits in Low Earth Orbit (LEO) at altitudes between 308 km and 313 km with an inclination of 97.3°. It travels at approximately 27,806 km/h (7.72 km/s), completing one full orbit every 91 minutes — that’s roughly 15.88 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 months to ~1 year. Orbital Radar tracks HYPSO-1 in real time using the latest two-line element set (TLE) data, providing live position, altitude, speed and orbital path updated continuously.

HYPSO-1 orbits at an average altitude of 311 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 HYPSO-1’s average altitude, there are currently 1,061 active payloads and 25 tracked debris or rocket body fragments — notable neighbours include STARLINK-1036, STARLINK-1043, STARLINK-1046. This makes it one of the more crowded altitude bands, containing roughly 5.7% of all active satellites. With an inclination of 97.3°, HYPSO-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 27 active satellites in total.