TEMPSAT 1

MilitaryLEOPolarUnited States

TEMPSAT 1 is a military satellite, as listed in Jonathan McDowell's GCAT catalogue, with ownership listed as United States in CelesTrak's catalogue, currently in low Earth orbit, around 1,089 km altitude. It completes one orbit of Earth roughly every 108 minutes at an inclination of 90.0°. It was launched in 1965. Track its live position and see when it passes over your location on azmth.

Orbital data

NORAD ID: 1512
COSPAR ID: 1965-065E
Type: Military
Orbit: LEO
Perigee (lowest): 1,089 km
Apogee (highest): 1,191 km
Inclination: 90.01°
Orbital period: 108 min
Launch year: 1965
Owner (CelesTrak): United States

Orbital data updated: 2026-10-18 · from CelesTrak, refreshed every 2 hours.

Who operates it

United StatesLIVEMission ended about Nov 1965

Calibration target

Independent assessment

GCAT classes it as a military satellite for calibration and records its mission as ended in about Nov 1965 (17 Oct 2026).

Data: GCAT · CC BY 4.0 Class, mission and status adapted from GCAT by Jonathan McDowell, CC BY 4.0, data update 17 Oct 2026.

Military satellites, counted and explained →

About LEO orbit

Low Earth Orbit. Up to 2,000 km altitude. Where most satellites live including the ISS (~420 km), Starlink (~550 km), and Earth observation. Orbital period roughly 90 minutes.