EXPLORER 29 (GEOS 1)
Live Position
Ground Track · Last 90 Minutes
Upcoming Passes · Over Your Location
About This Satellite
EXPLORER 29 (GEOS 1) is a cataloged satellite tracked under NORAD ID 1726 with international designator 65089A. According to the GCAT master catalog, it was built by APL, on the ANNA platform, with a launch mass of about 176 kg, with a shape described as Oct Cyl + Dome + Ant. According to the TLE snapshot used when this page was generated (2026-08-18), its MEO orbit had an apogee of about 2.275 km and a perigee near 1.127 km, with an inclination of 59.38° and a period of roughly 120.3 minutes; at apogee its speed was about 6.54 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, EXPLORER 29 (GEOS 1)'s apogee was 2.275 km, where its speed was about 6.54 km/s, completing about 12.0 orbits of Earth per day. Track it live on the map above or in the JOT orbital map.