ResourceName
STEREO-A Extreme UltraViolet Imager 30.4 nm (He II)
DOI
https://doi.org/10.48322/w6c9-eb08
ReleaseDate
2026-07-21 12:07:24Z
RevisionHistory
RevisionEvent
ReleaseDate
2026-03-03 00:08:46Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2026-03-16 00:08:46Z
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Updated PublicationInfo, Contact, and ObservedRegion; Added MetadataRightsList and RightsList(s)
RevisionEvent
ReleaseDate
2026-03-17 00:08:46Z
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Added HelioViewerID to Extension
RevisionEvent
ReleaseDate
2026-03-19 21:11:19Z
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Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. Added DOI. tlk
RevisionEvent
ReleaseDate
2026-06-26 13:28:23Z
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Add 'Z' to RevisionEvent:ReleaseDate(s), PublicationDate, TemporalDescription:TimeSpan:StartDate. ZCB
RevisionEvent
ReleaseDate
2026-07-21 12:07:24Z
Note
Added HelioData InformationURL. JWL
Description
The Extreme Ultraviolet Imager (EUVI) is part of the Sun Earth Connection Coronal and Heliospheric Investigations (SECCHI) instrument suite on the NASA STEREO mission. The SECCHI on the two STEREO spacecraft are identical suites of remote sensing instruments designed to observe coronal mass ejections (CMEs) at the Sun and in transit outwards to 1 AU.
EUVI measured emission lines at 30.4 nm (He II), 17.1 nm (Fe IX), 19.5 nm (Fe XII), and 28.4 nm (Fe XV). The EUVI 2048 x 2048 pixel detectors have a field of view out to 1.7 solar radii, and observe in four spectral channels that span the 0.1 to 20 MK temperature range. In addition to its view from two vantage points, the EUVI will provide a substantial improvement in image resolution and image cadence over its predecessor SOHO-EIT, while complying with the more restricted mass, power, and volume allocations on the STEREO mission.
PublicationInfo
Authors
The SECCHI Consortium: Naval Research Laboratory (USA); Lockheed Martin Solar and Astrophysics Laboratory (USA); NASA Goddard Space Flight Center (USA); Johns Hopkins University Applied Physics Laboratory (USA); Rutherford Appleton Laboratory (UK); University of Birmingham (UK); Max-Planck-Institut für Sonnensystemforschung (Germany); Centre Spatiale de Liege (Belgium); Institut d'Optique Théorique et Appliqueé (France); Institut d'Astrophysique Spatiale (France)
PublicationDate
2006-12-06 00:00:00Z
PublishedBy
NASA Goddard Space Flight Center
Contacts
InformationURL
Name
The EUVI Instrument paper by Wuesler et al. 2004
URL
Description
The EUVI paper.
InformationURL
Name
The SECCHI instrument paper by Howard et al. 2008
URL
InformationURL
Name
HelioData
URL
Description
The HelioData dataset page provides an overview of the dataset with access links, associated variables, and more.