NORAD 25544 · 1998-067A
International Space Station
- Catalogue
- ISS (ZARYA)
- Operator
- International partnership
- Orbit class
- Low Earth orbit
- Tracked layer
- Crewed stations
01 · Purpose
What it does
The station supports scientific research, technology demonstrations and long-duration human spaceflight. Its orbit is periodically reboosted, so its altitude and predicted path change over time.
Open NASA ISS reference ↗02 · Read the orbit
One circuit, explained.
These values describe the path represented above. Heights are approximate and derived from the displayed GP mean motion and eccentricity.
15.49 circuits around Earth per day.
A spread of about 10 km between the orbit’s lowest and highest points.
Mid-latitude coverage as the spacecraft crosses north and south of the equator.
Eccentricity 0.00076 describes how far the path departs from a circle.
03 · Evidence
From source to screen.
The position above is calculated in the browser from a disclosed element set. The chain below separates source data, calculation and display; it is not spacecraft telemetry.
- 01 · SourceCelesTrak GP record
A public element set identifies the orbit at a stated epoch.
- 02 · CalculateSGP4 propagation
The position is estimated forward from that element set in your browser.
- 03 · DisplayMarker and path
The globe renders the calculated position and one-orbit trajectory.
Calculated, not claimed as live. The moving marker and one-orbit path use SGP4 propagation from the disclosed OMM-compatible GP fields above.
04 · Continue
Turn a tracked object into something you follow.
Carry International Space Station into your personal watch view, or move from the orbital layer to the launch schedule.