CALSPHERE 4(A)
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About This Satellite
CALSPHERE 4(A) is a cataloged satellite tracked under NORAD ID 1520 with international designator 65065H. According to the GCAT master catalog, it was built by NRL, on the NRL 14" platform, with a launch mass of about 4 kg, with a shape described as Sphere. According to the TLE snapshot used when this page was generated (2026-08-18), its LEO orbit had an apogee of about 1.181 km and a perigee near 1.079 km, with an inclination of 89.90° and a period of roughly 107.8 minutes; at apogee its speed was about 7.24 km/s. Positions on this page are near-real-time SGP4 predictions propagated from the latest two-line element (TLE) data.
In the TLE snapshot used to generate this page, CALSPHERE 4(A)'s apogee was 1.181 km, where its speed was about 7.24 km/s, completing about 13.4 orbits of Earth per day. Track it live on the map above or in the JOT orbital map.