NOAA GOES 1-15 Space Environment Monitor (SEM) L1B & L2 Data, Version 0 (Version Superseded)
GOES-SEM-V0
*Note: This dataset version has been superseded by a newer version. It is highly recommended that users access the current version. The Space Environment Monitor (SEM) is a suite of instruments onboard the GOES satellite series. The objective of the SEM package is to measure solar radiation in the X-ray and Extreme Ultraviolet (EUV) region, the in-situ magnetic field, and the energetic particle environment at geosynchronous orbit. This collection contains L1B and L2 data from GOES 1-15 and SMS 1-2. The SEM suite on SMS 1-2 and GOES 1-5 is composed of three sensors: SEM/EPS (Energetic Particle Sensor), SEM/MAG (Magnetometer), and SEM/XRS (X-Ray Sensor). The SEM/HEPAD (High Energy Proton and Alpha Particles Detector) began with GOES 7. The GOES 13-15 SEM suite added these 3 sensors: SEM/EUVS (Extreme Ultraviolet Sensor), SEM/MAGED (Magnetospheric Electron Detector), and SEM/MAGPD (Magnetospheric Proton Detector). On GOES 13-15, the historical EPS sensor was renamed EPEAD (Electron, Proton, and Alpha Detector) and the term EPS now refers to the suite of particle detectors (EPEAD, MAGED, MAGPD). Combined these sensors provide magnetic field, energetic particle, and solar x-ray and EUV data. The magnetometer (MAG) measures the magnitude and direction of the magnetic field. The energetic particle detectors (EPS, HEPAD, EPEAD, MAGED, MAGPD, and MAGED) measure a spectrum of electron, proton, and alpha-particle fluxes caused by solar activity and galactic cosmic rays. The solar x-ray sensor (XRS) measures solar X-ray fluxes for the wavelength bands of 0.05-.4 nm (short channel) and .1 to .8 nm (long channel). The extreme ultraviolet sensor (EUVS) measures the EUV in 5 bands (A-E) spanning wavelengths 5-127 nm. The temporal period of record (POR) for this collection extends from July 1974 to March 2020. The L1b products include full-resolution data (cadence varies by sensor/satellite) provided in daily files in FITS and csv formats. The L2 products include monthly averages (1 minute or 5 minute cadence) provided in monthly files in ASCII format. The data were produced by NOAA’s Space Weather Prediction Center (SWPC) and archived by NOAA's Comprehensive Large Array-Data Stewardship System (CLASS). To access this data, contact NCEI for distribution and ordering instructions.
- Cite as: NOAA GOES 1-15 Space Environment Monitor (SEM) L1B & L2 Data, Version 0 (Version Superseded). [indicate subset used]. NOAA National Centers for Environmental Information. [access date].
- gov.noaa.ncei.swx:goes_sem-l1b-l2_swpc
- DSI 2086_01
gov.noaa.ncei.swx:goes_sem-l1b-l2_swpc
Distribution Formats |
|
Ordering Instructions | Contact NCEI for distribution options and ordering instructions. |
Distributor | NOAA National Centers for Environmental Information
ncei.info@noaa.gov |
Dataset Point of Contact | Customer Engagement Branch
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce 1-828-271-4800 ncei.info@noaa.gov |
Time Period | 1974-07 to 2020-03 |
Spatial Reference System | Non geographic dataset |
Spatial Bounding Box Coordinates | Bounding coordinates not available |
General Documentation |
|
Associated Resources |
|
Publication Dates |
|
Edition | Version 0 |
Data Presentation Form | Digital image
|
Dataset Progress Status | Complete - production of the data has been completed
Superseded - replaced by new Historical archive - data has been stored in an offline storage facility |
Data Update Frequency | Not planned |
Purpose | To monitor space weather activity. |
Use Limitations |
|
Dataset Citation |
|
Cited Authors |
|
Publishers |
|
Theme keywords | Global Change Master Directory (GCMD) Science Keywords
|
Data Center keywords | Global Change Master Directory (GCMD) Data Center Keywords
|
Platform keywords | Global Change Master Directory (GCMD) Platform Keywords
|
Instrument keywords | Global Change Master Directory (GCMD) Instrument Keywords
|
Use Constraints |
|
Access Constraints |
|
Fees |
|
Lineage Statement | The data were produced by NOAA's Space Weather Prediction Center (SWPC). |
Source Datasets |
|
Processing Steps |
|
Last Modified: 2023-11-10
For questions about the information on this page, please email: ncei.info@noaa.gov