LISIRD supplied Composite Lyman Alpha

This data product contains daily irradiance levels \n(photons/s/cm**2) of solar Lyman alpha (121.5 nm) radiation from multiple \nspacecraft and modelling sources, including AE-E/ESUM, SME/SUVM, \nUARS/SOLSTICE, TIMED/SEE and SORCE/SOLSTICE spacecraft and F10.7 and Mg \nmodels. Data are available from 1947 to near-current, both graphically \nand, in txt/csv format, digitally, from the LISIRD interface at \nU.Colorado/LASP.

Data and Resources

This dataset has no data

Additional Info

Field	Value
Maintainer	NASA Space Physics Data Facility
Last Updated	April 20, 2026, 21:43 (UTC)
Created	March 9, 2026, 23:42 (UTC)
accessLevel	public
bureauCode	{026:00}
catalog_conformsTo	https://project-open-data.cio.gov/v1.1/schema
harvest_object_id	8d79977c-f587-4990-a71a-2aee46f09d9a
harvest_source_id	b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title	Science Discovery Engine
identifier	/SDE/SPASE_JSON/\|d09ba3132289900fe0e2afbc6bc41cab
license	https://www.usa.gov/government-works
modified	2026-04-13T22:15:59Z
programCode	{026:000}
publisher	LISIRD
resource-type	Dataset
source_datajson_identifier	true
source_hash	dd21381a7e033edfe066dcde26bc5d8fb50cfdbb994274d5f07f078809119751
source_schema_version	1.1
theme	{Heliophysics}