Data

• Available Data Summary Table/Data Access
• Data Availability Chart
• Reading Data Files
• Quick Overview
• Data Product Characteristics
• Science Data Processing
• Release Notes: TIM, XPS, SOLSTICE, SIM, SIM-TAV

Data Product	Instrument	Time Cadence	Spectral Coverage	Spectral Resolution	Level	Ver.	Data Info	Full Mission Data Download Files	Interactive Access	FileReaders (Listed by Lanuguage)
TotalSolar Irradiance(TSI)	TIM	Daily	All	N/A	3	19	?	911 KB		IDL
	TIM	6-Hourly	All	N/A	3	19	?	3.5 MB		IDL
Spectral Solar Irradiance (SSI)	Combined SSIXPS V12 SOL V18 SIM V27	Daily	0.1-40nm & 115-2416nm	Varies 1-34nm	3	1	?	76MB 92MB 59MB		IDL
	SIM	Daily	240-2416nm	Varies 1-34nm	3	27	?	95MB 119MB 75MB		IDL
	SIM – TAV TSIS1 Adjusted Values	Daily	240-2402nm	Varies 1-34nm	3b	2	?	99MB 121MB 76MB		IDL
	SOLSTICE	Daily	MUV 180-310nm	1nm	3	18	?	4.5MB 4.7MB		IDL
	SOLSTICE	Daily	FUV 115-180nm	1nm	3	18	?	7.9MB 10.0MB		IDL
	SOLSTICE	Daily	115-310nm	0.1nm	3	18	?	2003 45 MB 2004 56 MB 2005 56 MB 2006 56 MB 2007 54 MB 2008 56 MB 2009 54 MB 2010 51 MB 2011 53 MB 2012 50 MB 2013 31 MB 2014 44 MB 2015 54 MB 2016 52 MB 2017 48 MB 2018 56 MB 2019 56 MB 2020		IDL
	SOLSTICE	Full Cadence	Lyman-Alpha	0.1nm	2	18	?	2003 34 MB 2004 38 MB 2005 75 MB 2006 75 MB 2007 77 MB 2008 73 MB 2009 74 MB 2010 76 MB 2011 65 MB 2012 70 MB		IDL
	XPS	Daily	0.1-27nm	Broadband	3	12	?	1.5MB 1.0MB		IDL
	XPS	6-Hourly	0.1-27nm	Broadband	3	12	?	5.8MB 4.1MB		IDL
	XPS	Daily	0.1-40nm	0.1nm	4	12	?	690 KB		IDL
	XPS	Daily	0.1-40nm	1nm	4	12	?	690 KB		IDL
	XPS	5-Minute	0.1-40nm	0.1nm	4	12	?	2003 68 MB 2004 50 MB 2005 68 MB 2006 64 MB 2007 63 MB 2008 63 MB 2009 61 MB 2010 60 MB 2011 59 MB 2012 56 MB 2013 36 MB 2014 34 MB 2015 42 MB 2016 41 MB 2017 39 MB 2018 39 MB 2019 26 MB 2020 5 MB		IDL
Space Weather	Magnesium II (MgII)	as measured	280nm	core-to-wing	2	18	?	4.9MB 2.4MB		IDL
Space Weather	Magnesium II (MgII) Daily Average	Daily	280nm	core-to-wing	3	18	?	282KB 141KB		IDL

text file

zipped text file

IDL save file

zipped IDL save file

NetCDF

Zipped NetCDF

Interactive

Data Availability Chart

Reading Data Files

The following readers are available for the data files in the table above:

• TSI and SSI Level 3 text file reader (code in IDL)
• XPS Level 4 NetCDF File Reader (zip file, code written in IDL)

Quick Overview

The SORCE instrument suite produces two primary data products: Total Solar Irradiance (TSI) and Solar Spectral Irradiance (SSI) from 0.1 nm to 40 nm and from 115 nm to 2416 nm, with other secondary data products produced and disseminated as a means to more directly serve other scientific communities. TSI data products are formulated using measurements made by the SORCE TIM instrument, and are available in both daily average or 6-hourly average formats. The SSI data product is comprised of measurements made by the four SORCE spectral instruments, with XPS making measurements from 0.1 – 40 nm, SOLSTICE-A from 115-180 nm, SOLSTICE-B from 180-310 nm, and SIM from 310-2416 nm. The spectral interval from 40-115 nm is not covered by the SORCE mission

SORCE data products are available for public access. SORCE data may be accessed from three different locations:

Refinement of data processing algorithms and some on-orbit characterization of the SORCE instruments continue. Please read the release notes on the TSI and the SSI web pages for detailed quality information about the products you may be interested in.

Data Product Characteristics

Science Data Processing

The SORCE Science Data System (SDS) performs all science data production activities. It consists of the hardware and software components necessary to generate, manage, and distribute all SORCE standard science data products. The SORCE SDS routinely produces total solar irradiance and solar spectral irradiance data products on a daily basis, which are formulated using measurements from the four primary instruments onboard the SORCE spacecraft. The Science Data System utilizes raw spacecraft and instrument telemetry, routinely-maintained calibration data, and other ancillary information to produce and distribute a variety of data products that have been corrected for all known instrumental and operational effects.

The table at the top of this page summarizes the core SORCE data products. SORCE provides routine daily measurements of TSI, SSI from 0.1 nm to 40 nm and 115 nm to 2416 nm, and other solar-irradiance derived products that support the atmospheric, climate, and space weather communities. TSI data products are formulated using measurements made by the SORCE TIM instrument, and are available in both daily average or 6-hourly average formats. The SSI data products, including the Mg index, are comprised of measurements made by the SORCE spectral instruments. Routine calibration and validation is a significant effort to maintain the high quality of the solar irradiance data products.

Data processing is performed automatically with the production of data through Level 3 two to five days after the data has been downlinked from the spacecraft, allowing for telemetry retransmissions and receipt of definitive spacecraft orbital ephemerides from NORAD. TSI and SSI data products are made available to the public immediately after they are produced by the data processing system, following automated quality checks.

The data products are available by direct download or interactive access on the LASP Interactive Solar Irradiance Datacenter (LISIRD), and are formally delivered to the GES DISC on a daily basis for long-term archival. Dissemination of SORCE data products via the SORCE website at LASP enhances convenience for users as data access methods are tailored to those most functional for retrieving SORCE solar irradiance data. The SORCE project at LASP indexes and maintains a full archive of data products, making possible various and flexible data access interfaces that are intended to provide added convenience to end-users. Configuration management of data is built into the SORCE data system, owing to integration of the SORCE data processing and dissemination components.