Global Navigation Satellite System (GNSS) Earth Rotation Parameters (ERP) products from NASA CDDIS

Earth Rotation Parameters (ERPs) derived from analysis of Global Navigation Satellite System (GNSS) data. These products are the generated by analysis centers in support of the International GNSS Service (IGS) and combined by the IGS analysis coordinator to form the official IGS ERP product (weekly).

Data and Resources

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Original MetadataISO
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Additional Info

Field	Value
Maintainer	Earthdata Forum
Last Updated	June 2, 2026, 20:57 (UTC)
Created	March 10, 2026, 01:35 (UTC)
accessLevel	public
bureauCode	{026:00}
catalog_conformsTo	https://project-open-data.cio.gov/v1.1/schema
harvest_object_id	7c38cc2c-89a8-4aac-b7d6-92b5876b3590
harvest_source_id	b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title	Science Discovery Engine
identifier	/SDE/CMR_API/\|C1000000021-CDDIS
license	https://www.usa.gov/government-works
modified	2026-06-01T22:15:59Z
programCode	{026:000}
publisher	CDDIS
resource-type	Dataset
source_datajson_identifier	true
source_hash	fbcf0c21bcdbc0cf42f94e8492ef6598fcc0432fb7daf93a0bc96cdd0008fc3b
source_schema_version	1.1
spatial	["CARTESIAN", [{"EastBoundingCoordinate": 180, "NorthBoundingCoordinate": 90, "SouthBoundingCoordinate": -90, "WestBoundingCoordinate": -180}]]
temporal	1992-01-01/2026-06-01
theme	{"Earth Science"}