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STEREO-A PLASTIC Small Transients List

(2025). STEREO-A PLASTIC Small Transients List [Data set]. Goddard Space Flight Center.

ResourceID
spase://NASA/NumericalData/STEREO-A/PLASTIC/SmallTransientsList

Description

Small Transients (ST) are identified by the following criteria: 1. The STs have durations between 0.5 and 12 hours. 2. Magnetic field strength is higher than the yearly average (> 1.3 times yearly average). 3. Low proton beta (less than 0.7 times yearly average) or low proton temperature (Tp/Texp < 0.7). 4. Low Alfvén Mach Number (less than 0.7 yearly average), or large rotations of magnetic field components (we used the minimum variance analysis on the magnetic field, Sonnerup and Cahill Jr. [1967], Sonnerup and Scheible [1998]; and we require that the intermediate-to-minimum eigenvalue ratio be > 5). 5. Checking the Aflvénic fluctuations. We remove all three correlations (Rx, Ry, Rz) greater than 0.5, or two greater than 0.6 and the other greater than 0.3 from our list, which is similar to the criterion in Cartwright and Moldwin [2008].

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Version:2.7.1

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Rights
SchemeURI
https://spdx.org/licenses/
RightsIdentifierScheme
SPDX
RightsIdentifier
CC0-1.0
RightsURI
https://spdx.org/licenses/CC0-1.0.html
RightsName
Creative Commons Zero v1.0 Universal
Note
CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions

Version:2.7.1

NumericalData

ResourceID
spase://NASA/NumericalData/STEREO-A/PLASTIC/SmallTransientsList
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
STEREO-A PLASTIC Small Transients List
ReleaseDate
2025-12-04 13:31:33Z
RevisionHistory
RevisionEvent
ReleaseDate
2020-07-07 21:15:21Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2025-11-14 16:01:47Z
Note
Added PublicationInfo. Added ResourceType and NamingAuthority. ZCB
RevisionEvent
ReleaseDate
2025-12-04 13:31:33Z
Note
Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB
Description

Small Transients (ST) are identified by the following criteria: 1. The STs have durations between 0.5 and 12 hours. 2. Magnetic field strength is higher than the yearly average (> 1.3 times yearly average). 3. Low proton beta (less than 0.7 times yearly average) or low proton temperature (Tp/Texp < 0.7). 4. Low Alfvén Mach Number (less than 0.7 yearly average), or large rotations of magnetic field components (we used the minimum variance analysis on the magnetic field, Sonnerup and Cahill Jr. [1967], Sonnerup and Scheible [1998]; and we require that the intermediate-to-minimum eigenvalue ratio be > 5). 5. Checking the Aflvénic fluctuations. We remove all three correlations (Rx, Ry, Rz) greater than 0.5, or two greater than 0.6 and the other greater than 0.3 from our list, which is similar to the criterion in Cartwright and Moldwin [2008].

Acknowledgement
Please acknowledge STEREO PLASTIC Investigation (A.B. Galvin, PI) and NASA grant NNX15AU01G.
PublicationInfo
Authors
Galvin, Antoinette B.
PublicationDate
2025-11-14 16:01:47Z
PublishedBy
Goddard Space Flight Center
Contacts
RolePersonStartDateStopDateNote
1.PrincipalInvestigatorspase://SMWG/Person/Antoinette.B.Galvin
InformationURL
InformationURL
PriorIDs
spase://VSPO/NumericalData/STEREO-A/PLASTIC/SmallTransientsList
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
RightsList
Rights
SchemeURI
https://spdx.org/licenses/
RightsIdentifierScheme
SPDX
RightsIdentifier
CC0-1.0
RightsURI
https://spdx.org/licenses/CC0-1.0.html
RightsName
Creative Commons Zero v1.0 Universal
Note
CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products
AccessURL
Name
STEREO Science Center - ASCII
URL
Description

In ASCII via http from SSC

Format
Text
DataExtent
Quantity
1
Units
KB
ProcessingLevel
Calibrated
InstrumentIDs
MeasurementType
ThermalPlasma
TemporalDescription
TimeSpan
StartDate
2007-01-19 00:00:00
RelativeStopDate
-P1Y
Note
As of March 24, 2017, last data were for August 11, 2014.
ObservedRegion
Heliosphere.Remote1AU