HBTSS-SV2

Military*LEOUnited States

HBTSS-SV2 is a satellite whose own government says its armed forces or defence ministry own or run it, which GCAT classes as commercial, with ownership listed as United States in CelesTrak's catalogue, currently in low Earth orbit, around 991 km altitude. It completes one orbit of Earth roughly every 105 minutes at an inclination of 40.0°. It was launched in 2024. Track its live position and see when it passes over your location on azmth.

Orbital data

NORAD ID: 58955
COSPAR ID: 2024-028A
Type: Military*
Orbit: LEO
Perigee (lowest): 991 km
Apogee (highest): 1,019 km
Inclination: 39.99°
Orbital period: 105 min
Launch year: 2024
Owner (CelesTrak): United States

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

Who operates it

United StatesLIVEActive

Missile warning

Official description

The US Department of Defense says this is one of two satellites for the Missile Defense Agency's HBTSS programme, and that Missile Defense Agency and Space Development Agency engineers would test them in orbit (15 Feb 2024).

US Department of Defense, 15 Feb 2024

Show original

“The satellites, which include two satellites for MDA's Hypersonic and Ballistic Tracking Space Sensor (HBTSS) ... Over the next few weeks, MDA and SDA engineers will run a series of tests and checkout procedures to ensure the satellites are operating”

Independent assessment

GCAT classes it as a commercial satellite for missile warning, lists its owner as Missile Defense Agency, and records it as active (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.