spase-metadata.org SPASE landing pages.

Evans Solar Facility

ResourceID
spase://SMWG/Observatory/EvansSolarFacility

Description

The John W. Evans Solar Facility (ESF) is two telescopes in one,
both tracking the solar cycle. A 16" coronagraphic telescope maps magnetic changes
in the Sun's outer atmosphere. A special set of 12" coelostat optics "squints" so
the Sun appears as a pinpoint, allowing an "apples and apples" comparison with the
cycles of distant stars.

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Details

Version:2.7.1

Observatory

ResourceID
spase://SMWG/Observatory/EvansSolarFacility
ResourceHeader
ResourceName
Evans Solar Facility
AlternateName
ESF
AlternateName
John W. Evans Solar Facility
ReleaseDate
2026-07-20 16:22:40Z
RevisionHistory
RevisionEvent
ReleaseDate
2019-05-05 12:34:56Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2026-07-20 16:22:40Z
Note
Added HelioData InformationURL, Updated to SPASE Version 2.7.1. JWL
Description

The John W. Evans Solar Facility (ESF) is two telescopes in one,
both tracking the solar cycle. A 16" coronagraphic telescope maps magnetic changes
in the Sun's outer atmosphere. A special set of 12" coelostat optics "squints" so
the Sun appears as a pinpoint, allowing an "apples and apples" comparison with the
cycles of distant stars.

Contacts
RolePersonStartDateStopDateNote
1.GeneralContactspase://SMWG/Person/UNKNOWN
InformationURL
Name
John W. Evans Solar Facility Homepage
URL
Description

Detailed information about the Evans Solar Facility including instruments and data.

InformationURL
Name
HelioData
URL
Description

The HelioData mission page provides an overview of the mission and more, such as all SPASE dataset records associated with it.

ObservatoryGroupID
Location
ObservatoryRegion
Earth.Surface