spase-metadata.org SPASE landing pages.

S3-3

ResourceID
spase://SMWG/Observatory/S3-3

Description

This spacecraft was a small observatory in a near-polar orbit with eight different sensors on board. It was designed to observe various magnetospheric parameters and their interrelationships. Sensors, which observed energetic protons and Alpha particles, also provided real-time observations for use by the U.S. Air Force Air Weather Service.

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Details

Version:2.7.1

Observatory

ResourceID
spase://SMWG/Observatory/S3-3
ResourceHeader
ResourceName
S3-3
AlternateName
SESP S74-2A
AlternateName
SS74-2A
AlternateName
S74-2
AlternateName
09007
ReleaseDate
2026-07-20 16:22:54Z
RevisionHistory
RevisionEvent
ReleaseDate
2018-03-30 14:12:05Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2026-07-20 16:22:54Z
Note
Added HelioData InformationURL, Updated to SPASE Version 2.7.1. JWL
Description

This spacecraft was a small observatory in a near-polar orbit with eight different sensors on board. It was designed to observe various magnetospheric parameters and their interrelationships. Sensors, which observed energetic protons and Alpha particles, also provided real-time observations for use by the U.S. Air Force Air Weather Service.

Contacts
RolePersonStartDateStopDateNote
1.GeneralContactspase://SMWG/Person/T.Paul.OBrien
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.

Location
ObservatoryRegion
Earth.Magnetosphere.Polar
OperatingSpan
StartDate
1976-07-08 00:00:00Z
StopDate
1979-04-25 00:00:00Z