HDPWS

SOHO SWAN Data

(1996). SOHO SWAN Data. [Data set]. SOHO Science Archive at the European Space Astronomy Centre.

ResourceID
spase://ESA/NumericalData/SOHO/SWAN/SSA_SDAC

Description
The SWAN Instrument is designed to observe the solar Lyman alpha photons (121.6 nm) backscattered by the neutral hydrogen atoms present in the interplanetary medium. The background images show the distribution pattern of the backscattered Lyman alpha photons as observed from SOHO. This image, obtained in approximately 24 hours, is then processed to reveal spatial variations of the solar illuminating flux. These spatial variations are correlated to the actual activity on the solar disk. Because SWAN observes backscattered photons, it is actually possible to 'see' those which are originating from the farside of the Sun.

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Version:2.6.1

NumericalData

ResourceID
spase://ESA/NumericalData/SOHO/SWAN/SSA_SDAC
ResourceHeader
ResourceName
SOHO SWAN Data
ReleaseDate
1996-01-18 00:00:00
RevisionHistory
RevisionEvent
ReleaseDate
2024-08-14 00:08:46
Note
Metadata created by SY
Description
The SWAN Instrument is designed to observe the solar Lyman alpha photons (121.6 nm) backscattered by the neutral hydrogen atoms present in the interplanetary medium. The background images show the distribution pattern of the backscattered Lyman alpha photons as observed from SOHO. This image, obtained in approximately 24 hours, is then processed to reveal spatial variations of the solar illuminating flux. These spatial variations are correlated to the actual activity on the solar disk. Because SWAN observes backscattered photons, it is actually possible to 'see' those which are originating from the farside of the Sun.
PublicationInfo
Authors
The SWAN Consortium: Service d'AĆ©ronomie du CNRS (France); Finnish Meteorological Institute (Finland); Technical Research Center of Finland (Finland); University of Turku (Finland); High Altitude Observatory (USA)
PublicationDate
1996-01-18 00:00:00
PublishedBy
SOHO Science Archive at the European Space Astronomy Centre
Contacts
Role Person StartDate StopDate Note
1. PrincipalInvestigator spase://SMWG/Person/Eric.Quemerais
2. FormerPI spase://SMWG/Person/Jean-Loup.C.Bertaux

InformationURL
Name
The SOHO/SWAN Website
URL
InformationURL
Name
The SOHO/SWAN Instrument paper
URL
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
SOHO Science Archive
URL
Style
Search
Format
FITS
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Format
FITS
ProviderProcessingLevel
Raw
InstrumentIDs
MeasurementType
ImageIntensity
TemporalDescription
TimeSpan
StartDate
1996-01-18 17:53:01
RelativeStopDate
-P5D
ObservedRegion
Sun
ObservedRegion
Sun.Corona