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ACE GSE 12-min Position Data

ACE flight operations team (FOT), and R. Candey (2022). ACE GSE 12-min Position Data [Dataset]. Space Physics Data Facility. https://doi.org/10.48322/by5e-zs07 .

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/ACE/Ephemeris/PT12M

Description

ACE satellite positions.

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Details

Version:2.7.2

MetadataRightsList

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:2.7.2

NumericalData

ResourceID
spase://NASA/NumericalData/ACE/Ephemeris/PT12M
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
ACE GSE 12-min Position Data
DOI
https://doi.org/10.48322/by5e-zs07
ReleaseDate
2026-10-23 12:49:17Z
RevisionHistory
RevisionEvent
ReleaseDate
2021-04-27 15:38:11Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2022-08-19 12:34:56.789Z
Note
Added DOI and PublicationInfo minted by JMW on 20220808, updated the RepositoryID, updated the SPDF MetadataContact Person to Robert M. Candey, metadata updated to SPASE 2.4.1, reviewed by LFB 20220819
RevisionEvent
ReleaseDate
2025-05-01 12:34:56.789Z
Note
Added ObservedRegion. JMW
RevisionEvent
ReleaseDate
2025-09-30 14:27:17Z
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
RevisionEvent
ReleaseDate
2025-12-04 13:28:23Z
Note
Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB
RevisionEvent
ReleaseDate
2026-06-26 13:14:15Z
Note
Add 'Z' to RevisionEvent:ReleaseDate(s), PublicationDate. ZCB
RevisionEvent
ReleaseDate
2026-07-21 12:03:49Z
Note
Added HelioData InformationURL. JWL
RevisionEvent
ReleaseDate
2026-10-23 12:49:17Z
Note
Added HelioCloud S3 AccessURL. Updated to 2.7.2. ZCB
Description

ACE satellite positions.

PublicationInfo
Authors
ACE flight operations team (FOT), and R. Candey
PublicationDate
2022-01-01 00:00:00Z
PublishedBy
Space Physics Data Facility
Contacts
Role Person StartDate StopDate Note
1. MetadataContact spase://SMWG/Person/Jan.Merka
2. GeneralContact spase://SMWG/Person/Robert.M.Candey
3. MetadataContact spase://SMWG/Person/James.M.Weygand
4. MetadataContact spase://SMWG/Person/Lee.Frost.Bargatze
InformationURL
Name
HelioData
URL
https://helio.data.nasa.gov/dataset/ACE_Ephemeris_PT12M
Description

The HelioData dataset page provides an overview of the dataset with access links, associated variables, and more.

PriorIDs
spase://VHO/NumericalData/ACE/Ephemeris/PT12M
spase://VSPO/NumericalData/ACE/Ephemeris/PT12M
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb
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
FTPS from SPDF (not with most browsers)
URL
ftps://spdf.gsfc.nasa.gov/pub/data/ace/orbit/level_2_cdaweb/or_ssc/
AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/ace/orbit/level_2_cdaweb/or_ssc/
Description

In CDF via HTTP from CDAWeb

AccessURL
Name
CDAWeb
URL
https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=AC_OR_SSC&index=sp_phys
ProductKey
AC_OR_SSC
AccessURL
Name
SSCWeb
URL
https://sscweb.gsfc.nasa.gov/cgi-bin/Locator.cgi
ProductKey
ace
Format
CDF
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb
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
CDAWeb HAPI Server
URL
https://cdaweb.gsfc.nasa.gov/hapi
Style
HAPI
ProductKey
AC_OR_SSC
Description

Web Service to this product using the HAPI interface.

Format
CSV
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF
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
HelioCloud Catalog Endpoint
URL
https://api.heliocloud.org/cloudcatalog?id=AC_OR_SSC
Style
Overview
ProductKey
AC_OR_SSC
Description

Endpoint to access the data from HelioCloud. Data is split into one CSV file per year.

Format
CSV
Encoding
S3_BUCKET
InstrumentIDs
spase://SMWG/Instrument/ACE/Ephemeris
MeasurementType
Ephemeris
TemporalDescription
TimeSpan
StartDate
1997-08-26 00:00:00Z
RelativeStopDate
-P7D
Cadence
PT12M
ObservedRegion
Heliosphere
ObservedRegion
Heliosphere.Inner
ObservedRegion
Heliosphere.NearEarth
Parameter #1
Name
Epoch Time
ParameterKey
Epoch
Description

Number of milliseconds since the CDF epoch

Units
ms
UnitsConversion
1e-3>s
ValidMin
01-Jan-1956 00:00:00.000
ValidMax
01-Jan-2083 00:00:00.000
FillValue
-1.0E31
Support
SupportQuantity
Temporal
Parameter #2
Name
GSE latitude
ParameterKey
GSE_LAT
Description

Latitude of the spacecraft position in GSE

Units
Deg
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
GSE
ValidMin
-90.0
ValidMax
90.0
FillValue
-1.0E31
Support
Qualifier
DirectionAngle.ElevationAngle
SupportQuantity
Positional
Parameter #3
Name
GSE longitude
ParameterKey
GSE_LON
Description

Longitude of the spacecraft position in GSE

Units
Deg
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
GSE
ValidMin
-180.0
ValidMax
180.0
FillValue
-1.0E31
Support
Qualifier
DirectionAngle.AzimuthAngle
SupportQuantity
Positional
Parameter #4
Name
GSE radial distance
ParameterKey
RADIUS
Description

Radial distance of the spacecraft in GSE

Units
km
UnitsConversion
1e3>m
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
GSE
ValidMin
0.0
ValidMax
1594535.0
FillValue
-1.0E31
Support
Qualifier
Magnitude
SupportQuantity
Positional
Parameter #5
Name
GSE position
ParameterKey
XYZ_GSE
Description

Spacecraft position in GSE

Units
km
UnitsConversion
1e3>m
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
Structure
Size
3
Element
Name
x
Qualifier
Component.I
Index
1
ValidMin
-1594535.0
ValidMax
1594535.0
FillValue
-1.0E31
Element
Name
y
Qualifier
Component.J
Index
2
ValidMin
-1594535.0
ValidMax
1594535.0
FillValue
-1.0E31
Element
Name
z
Qualifier
Component.K
Index
3
ValidMin
-1594535.0
ValidMax
1594535.0
FillValue
-1.0E31
Support
SupportQuantity
Positional