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Data Access
AMPTE/UKS Data
AMPTE-UKS Ion Plasma Data, solar wind mode
var authors='Johnstone, Alan D.';
document.write(authors);
(2025).
AMPTE-UKS Ion Plasma Data, solar wind mode.
[Data set].
Space Physics Data Facility.
https://doi.org/10.48322/jqxv-w989. Accessed on document.write(currentDateStr);.
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or other formats, should include the "Accessed on date" to identify the version of the resource being cited in a given publication.
ResourceID
spase://NASA/NumericalData/AMPTE-UKS/Plasma/SWI/PT5S
Description
AMPTE-UKS 5-second (spin) averaged ion plasma moments
Metadata Rights
CC0-1.0:
Creative Commons Zero v1.0 Universal
Note
CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions. The actual data/software may be subject to a different license.
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Details
Version:2.7.1
NumericalData
ResourceID
spase://NASA/NumericalData/AMPTE-UKS/Plasma/SWI/PT5S
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
AMPTE-UKS Ion Plasma Data, solar wind mode
DOI
https://doi.org/10.48322/jqxv-w989
ReleaseDate
2026-07-21 12:03:56Z
RevisionHistory
RevisionEvent
ReleaseDate
2020-07-07 21:14:17Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2025-11-14 16:16:45Z
Note
Added PublicationInfo. Added ResourceType and NamingAuthority. Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. Matched version number in schemaLocation attribute to updated value in Version tag. ZCB
RevisionEvent
ReleaseDate
2025-12-04 13:28:29Z
Note
Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB
RevisionEvent
ReleaseDate
2026-07-21 12:03:56Z
Note
Added HelioData InformationURL. JWL
Description
AMPTE-UKS 5-second (spin) averaged ion plasma moments
Acknowledgement
UKS-IRM Prime Parameters, UKS-IRM High Resolution Data, or products derived from them may NOT be published or shown in any form without the consent of the Principal Investigators concerned. Acknowledgements to the PI and the UK CDHF would
be appropriate in any published work; full-authorship may be required
in some cases.
Scientists intending to embark on studies involving AMPTE UKS/IRM data
products are advised to contact the relevant Principal Investigator(s)
early in order to ensure that the data is suitable for the study, that
the project does not infringe on other ongoing work, and that the
Principal Investigator in general consents to the intended use of the
data. PIs can provide this support only on a best efforts basis, so please
be as precise and succinct as possible, and please be patient when awaiting
a PI response.
PublicationInfo
Authors
Johnstone, Alan D.
PublicationDate
2025-11-14 16:16:45Z
PublishedBy
Space Physics Data Facility
Contacts
Role
Person
StartDate
StopDate
Note
1.
PrincipalInvestigator
spase://SMWG/Person/Alan.D.Johnstone
InformationURL
Name
AMPTE documents
URL
http://www.mssl.ucl.ac.uk/www_plasma/missions/ampte.php
Description
An overview of the AMPTE mission with some description of the instruments
InformationURL
Name
HelioData
URL
https://helio.data.nasa.gov/dataset/AMPTE-UKS_Plasma_SWI_PT5S
Description
The HelioData dataset page provides an overview of the dataset with access links, associated variables, and more.
PriorIDs
spase://VMO/NumericalData/AMPTE_UKS/Plasma/SWI_PT5S
spase://VMO/NumericalData/AMPTE-UKS/Plasma/SWI_PT5S
spase://VSPO/NumericalData/AMPTE-UKS/Plasma/SWI/PT5S
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/VHO-VMO
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
AMPTE/UKS Data
URL
https://vmo.nasa.gov/mission/ampte_uks/swi/
Description
A web-accessible directory hosting AMPTE/UKS spin-averaged ion plasma data.
Format
Text
Encoding
ASCII
InstrumentIDs
spase://SMWG/Instrument/AMPTE-UKS/Plasma
MeasurementType
ThermalPlasma
TemporalDescription
TimeSpan
StartDate
1984-08-27 14:50:39Z
StopDate
1984-12-29 07:10:56Z
Cadence
PT5S
ObservedRegion
Earth.Magnetosheath
ObservedRegion
Heliosphere.NearEarth
Caveats
The time tags represent the start times of accumulation intervals (spin). UKS times are UT stamped on board while IRM time stamps are UT at time of ground receipt. Thus for time-critical science, the IRM times need to be corrected by subtracting the light travel time from the spacecraft to the ground-station (at Weilheim in Germany apart special events requiring NASA DSN). For the transmission frequencies used, the vacuum light speed is appropriate. At apogee, this correction is more than a third of a second. There are no other known time delays.
Parameter #1
Name
Epoch
ParameterKey
Column 1
Description
The start of the accumulation time interval for the data point, in DA/MO/YR HR:MI:SS.MS format.
Support
SupportQuantity
Temporal
Parameter #2
Name
Np
ParameterKey
Column 2
Description
Proton density
Units
cm^-3
UnitsConversion
1e6>m^-3
FillValue
-1e31
Particle
ParticleType
Proton
Qualifier
Moment
Qualifier
Scalar
ParticleQuantity
NumberDensity
Parameter #3
Name
Tp
ParameterKey
Column 3
Description
Proton temperature
Units
eV
UnitsConversion
1.16045e4>K
FillValue
-1e31
Particle
ParticleType
Proton
Qualifier
Moment
Qualifier
Scalar
ParticleQuantity
Temperature
Parameter #4
Name
Vp
Description
Bulk proton velocity
Units
km/s
UnitsConversion
1.0e3>m/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Structure
Size
3
Element
Name
Vx
Qualifier
Component.I
Index
1
ParameterKey
Column 4
Element
Name
Vy
Qualifier
Component.J
Index
2
ParameterKey
Column 5
Element
Name
Vz
Qualifier
Component.K
Index
3
ParameterKey
Column 6
FillValue
-1e31
Particle
ParticleType
Proton
Qualifier
Moment
Qualifier
Vector
ParticleQuantity
Velocity