SpaceTrack

The SpaceTrack integration tracks satellites by propagating Two-Line Element sets (TLEs) using the SGP4 algorithm. It computes real-time positions and velocities for one or many satellites, and optionally generates ground track orbit lines.

Setup

Open the command menu with Ctrl+K (or ⌘+K) and select Configuration
Find SpaceTrack under Feeds in the sidebar
Select Orbits and click Create
Paste a TLE or a URL to a TLE file into the TLE field and click Apply Configuration

The satellite will appear on the map immediately and update its position in real time. New to adding sources? Start with Connect Your Systems.

Settings

Setting	Default	Description
TLE	required	Inline TLE data (3-line format) or URL to a TLE file
ID		Entity ID prefix (single satellite only)
Label		Display label
Symbol	`SNPPS-----*****`	MIL-STD-2525C symbol code
Interval	`1.0`	Position update interval in seconds
Orbit Interval	`60.0`	Orbit ground track update interval in seconds
TLE Refresh Seconds	`3600`	Re-fetch interval when TLE is a URL
Username		HTTP basic auth username for TLE source
Password		HTTP basic auth password for TLE source
Disable Orbit Track	`false`	Skip orbit ground track generation

Data Flow

The integration fetches TLE data once (or periodically from a URL), then computes satellite positions locally using SGP4 propagation. No ongoing network connection is required after the initial TLE fetch.

Entity Mapping

Single satellite ID: spacetrack.{id}
Bulk TLE file IDs: spacetrack.{base_id}.{sanitized_name} (names lowercased, spaces to hyphens)
Orbit entity ID: {satellite_id}.orbit

Computed Field	Hydris Component
Position (lat, lon, altitude)	`geo`
ENU velocity	`kinematics` (with covariance)
Position uncertainty	`geo.covariance` (~1 km baseline + 1.5 km/day TLE age)
TLE name	`label`
Ground track	`geo_shape` (line geometry on orbit entity)

TLE Sources

The tle parameter accepts either inline TLE text or a URL:

Inline (single satellite):

ISS (ZARYA)
1 25544U 98067A   24001.50000000  .00016717  00000-0  10270-3 0  9993
2 25544  51.6400 200.0000 0007417  50.0000 310.0000 15.49560000000001

URL (bulk file):

https://celestrak.org/NORAD/elements/gp.php?GROUP=active&FORMAT=tle

When using a URL, TLEs are re-fetched at the configured tle_refresh_seconds interval. HTTP basic auth is supported for authenticated sources like space-track.org.

Orbit Ground Tracks

Unless disabled, the integration propagates one full orbital period at 1-minute steps and pushes the result as a line geometry entity. This renders as the satellite's ground track on the map.