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Data Access

DE 2 250ms IDM Ion Drift Velocities

(2023). DE 2 250ms IDM Ion Drift Velocities [Data set]. Space Physics Data Facility; University of California, Los Angeles. https://doi.org/10.48322/reef-jt02. Accessed on .

Note: Proper references, including those in BibTex or other formats, should include the "Accessed on date" as shown above to identify the version of the resource being cited in a given publication.

ResourceID
spase://NASA/NumericalData/DE2/IDM/PT0.25S

Description

This data set contains cross-track ion drift velocities obtained at 250ms resolution from the DE 2 Ion Drift Meter (IDM). Data are available in ASCII from nssdcftp and in CDF format from CDAWeb (as well as CDAWeb plots and lists).

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Details

Version:2.7.0

NumericalData

ResourceID
spase://NASA/NumericalData/DE2/IDM/PT0.25S
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
DE 2 250ms IDM Ion Drift Velocities
AlternateName
Dynamics Explorer 2 IDM Ion Drift Velocities
AlternateName
DE-B IDM Ion Drift Velocities
DOI
https://doi.org/10.48322/reef-jt02
ReleaseDate
2025-10-02 15:11:48Z
RevisionHistory
RevisionEvent
ReleaseDate
2021-04-27 15:38:11
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2023-07-30 12:34:56.789
Note
Added DOI and PublicationInfo minted by LFB, metadata versioned up to SPASE 2.6.0, reviewed by LFB 20230727
RevisionEvent
ReleaseDate
2025-10-02 15:11:48Z
Note
Updated PublishedBy name to match ROR Registry. 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
Description

This data set contains cross-track ion drift velocities obtained at 250ms resolution from the DE 2 Ion Drift Meter (IDM). Data are available in ASCII from nssdcftp and in CDF format from CDAWeb (as well as CDAWeb plots and lists).

Acknowledgement
Please acknowledge the IDM Principal Investigator, Dr. R.A. Heelis
PublicationInfo
Authors
Heelis, Roderick, A.; Candey, Robert, M.
PublicationDate
2023-01-01 00:00:00
PublishedBy
Space Physics Data Facility; University of California, Los Angeles
Contacts
RolePersonStartDateStopDateNote
1.PrincipalInvestigatorspase://SMWG/Person/Roderick.A.Heelis
2.MetadataContactspase://SMWG/Person/James.M.Weygand
3.GeneralContactspase://SMWG/Person/Robert.M.Candey
4.MetadataContactspase://SMWG/Person/Lee.Frost.Bargatze
InformationURL
Name
Readme file at SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/de/de2/plasma_idm/00readme.txt
InformationURL
Name
NSSDC's Master Catalog on the Ion Drift Meter
URL
https://nssdc.gsfc.nasa.gov/nmc/experiment/display.action?id=1981-070B-06
Description

Introduction to the Ion Drift Meter Observations on DE 2

PriorIDs
spase://VMO/NumericalData/DE2/IDM/PT0.25S
spase://VSPO/NumericalData/DE2/IDM/PT0.25S
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb
Availability
Online
AccessRights
Open
AccessURL
Name
FTPS from SPDF (not with most browsers)
URL
ftps://spdf.gsfc.nasa.gov/pub/data/de/de2/plasma_idm/
Description

For ftp retrieval of daily CDF files

AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/de/de2/plasma_idm/
Description

In CDF via HTTP from CDAWeb

Format
CDF
DataExtent
Quantity
700
Units
KB
Per
P1D
Acknowledgement
Please acknowledge the IDM Principal Investigator, Dr. R.A. Heelis, and the Space Physics Data Facility at NASA/GSFC
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb
Availability
Online
AccessRights
Open
AccessURL
Name
CDAWeb
URL
https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=DE2_VION250MS_IDM&index=sp_phys
ProductKey
DE2_VION250MS_IDM
Description

For CDAWeb subset, plot and list capabilities

Format
Text
DataExtent
Quantity
100
Units
KB
Per
PT1H
Acknowledgement
Please acknowledge the IDM Principal Investigator, Dr. R.A. Heelis, and the Space Physics Data Facility at NASA/GSFC
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb
Availability
Online
AccessRights
Open
AccessURL
Name
CDAWeb HAPI Server
URL
https://cdaweb.gsfc.nasa.gov/hapi
Style
HAPI
ProductKey
DE2_VION250MS_IDM@0
ProductKey
DE2_VION250MS_IDM@1
ProductKey
DE2_VION250MS_IDM@2
Description

Web Service to this product using the HAPI interface.

Format
CSV
Acknowledgement
Please acknowledge the IDM Principal Investigator, Dr. R.A. Heelis, and the Space Physics Data Facility at NASA/GSFC
AccessInformation
RepositoryID
spase://SMWG/Repository/UCLA/DE2
Availability
Online
AccessRights
Open
AccessURL
Name
VMO UCLA
URL
http://vmo.igpp.ucla.edu/data1/DE2/IDM/vi_250ms_ascii/
Description

Dynamics Explorer 2 Ion Drift Meter 250 ms data

Format
Text
Encoding
ASCII
Acknowledgement
NASA; Roderick A. Heelis; VMO
ProcessingLevel
Calibrated
ProviderResourceName
Dynamics Explorer 2 Ion Drift Meter
ProviderProcessingLevel
Level-2
InstrumentIDs
spase://SMWG/Instrument/DynamicsExplorer2/IDM
MeasurementType
ThermalPlasma
TemporalDescription
TimeSpan
StartDate
1981-08-15 00:00:00
StopDate
1983-02-16 00:00:00
Cadence
PT0.25S
ObservedRegion
Earth.NearSurface.Ionosphere
Caveats
The time format is variable
Keywords
250 ms
Auroral region
Polar Cap
Cusp
Radiation Belt
Plasmasphere
Dynamics Explorer 2
Dynamics Explorer
ion drift speed