STEREO-A Ephemeris in the GSM Coordinate System

STEREO atttitude and orbit data are distributed as SPICE kernels. Since most SEP investigators would rather not deal with SPICE kernels, Caltech provides text files containing position data for the two STEREO spacecraft, in the following coordinate systems: GEI, GSE, GSM, HCI, HEE, HEEQ.

Data and Resources

Additional Info

Field	Value
Maintainer	NASA Space Physics Data Facility
Last Updated	November 5, 2026, 13:40 (UTC)
Created	August 10, 2026, 19:46 (UTC)
Identifier	https://doi.org/10.48322/k0tm-hj85
Modified	2026-11-02T22:16:02Z
Theme	{Heliophysics}
accessLevel	public
bureauCode	{026:00}
catalog_conformsTo	https://project-open-data.cio.gov/v1.1/schema
harvest_object_id	404a0220-9539-4f83-8ef1-c151f9c0cb2c
harvest_source_id	b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title	Science Discovery Engine
landingPage	https://doi.org/10.48322/k0tm-hj85
license	https://www.usa.gov/government-works
programCode	{026:000}
publisher	AttitudeOrbit
resource-type	Dataset
source_datajson_identifier	true
source_hash	23595362173d0e5aa264598ce2f33f8c0262bb641d68792f1e183b6235243ae1
source_schema_version	1.1