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Helios 1 E3 Magnetometer (Ness et al.) 6-sec Data

(2023). Helios 1 E3 Magnetometer (Ness et al.) 6-sec Data. [Data set]. Space Physics Data Facility. https://doi.org/10.48322/nzxp-3e54. Accessed on .

Note: Proper references, including 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/Helios1/E3/PT6S

Description
Task of the HELIOS mission was the exploration of the inner heliosphere, inside the Earth's orbit to 0.3 AU. The Rome-GSFC magnetic field experiment has been a joint venture of an italian group (University of Rome and CNR/Istituto Fisica Spazio Interplanetario, Frascati) and an american group of NASA/Goddard Space Fligth Center, under the responsibility of F. Mariani and N.F.Ness, respectively. A description of the experiment can be found in the NASA-GSFC report X-692-75-112 (1975), by C. Scearce et al. The instrument is a dual configuration of two tri-axial fluxgate magnetometers operating at four different sensitivities (from 0.84 to 0.03 nT). The time resolution, depending the operation mode, telemetry format, and bit rate, for most cases varied from 0.07 to 1.5 seconds. The present data set contains six-second averages of the magnetic field elements in solar-ecliptic (SE) spacecraft-centered coordinates. Data are stored in files on a daily basis. File names are hNYYDDD.asc, with N the Helios number (1 or 2), YY the year (last two digits), and DDD the day of year (1 = January 1st). For instance, h276105.asc is the file with Helios 2 data for day 105, 1976.

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 may be subject to a different license.

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Details

Version:2.7.1

NumericalData

ResourceID
spase://NASA/NumericalData/Helios1/E3/PT6S
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
Helios 1 E3 Magnetometer (Ness et al.) 6-sec Data
DOI
https://doi.org/10.48322/nzxp-3e54
ReleaseDate
2025-12-04 13:29:19Z
RevisionHistory
RevisionEvent
ReleaseDate
2021-06-02 00:00:00
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 15:11:51Z
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 13:29:19Z
Note
Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB
Description
Task of the HELIOS mission was the exploration of the inner heliosphere, inside the Earth's orbit to 0.3 AU. The Rome-GSFC magnetic field experiment has been a joint venture of an italian group (University of Rome and CNR/Istituto Fisica Spazio Interplanetario, Frascati) and an american group of NASA/Goddard Space Fligth Center, under the responsibility of F. Mariani and N.F.Ness, respectively. A description of the experiment can be found in the NASA-GSFC report X-692-75-112 (1975), by C. Scearce et al. The instrument is a dual configuration of two tri-axial fluxgate magnetometers operating at four different sensitivities (from 0.84 to 0.03 nT). The time resolution, depending the operation mode, telemetry format, and bit rate, for most cases varied from 0.07 to 1.5 seconds. The present data set contains six-second averages of the magnetic field elements in solar-ecliptic (SE) spacecraft-centered coordinates. Data are stored in files on a daily basis. File names are hNYYDDD.asc, with N the Helios number (1 or 2), YY the year (last two digits), and DDD the day of year (1 = January 1st). For instance, h276105.asc is the file with Helios 2 data for day 105, 1976.
PublicationInfo
Authors
Ness, Norman, F.; Mariani, Franco
PublicationDate
2023-01-01 00:00:00
PublishedBy
Space Physics Data Facility
Contacts
Role Person StartDate StopDate Note
1. PrincipalInvestigator spase://SMWG/Person/Norman.F.Ness
2. GeneralContact spase://SMWG/Person/Franco.Mariani
3. MetadataContact spase://SMWG/Person/Lee.Frost.Bargatze

InformationURL
Name
Data set page at SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/helios/helios1/mag/6sec_ness/helios.txt
Description
Data set page at SPDF
PriorIDs
spase://VHO/NumericalData/Helios1/E3/PT6S
spase://VSPO/NumericalData/Helios1/E3/PT6.00S
spase://VSPO/NumericalData/P_HELIOS1_HDR_MAG_6SEC
spase://VSPO/NumericalData/Helios1/E3/PT6S
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/helios/helios1/mag/6sec_ness/
Description
In ASCII via FTP from SPDF
AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/helios/helios1/mag/6sec_ness/
Description
In ASCII via HTTP from SPDF
AccessURL
Name
CDAWeb
URL
https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=HEL1_6SEC_NESSMAG&index=sp_phys
ProductKey
HEL1_6SEC_NESSMAG
Format
Text.ASCII
AccessDirectoryTemplate
https://cdaweb.gsfc.nasa.gov/pub/data/helios/helios1/mag/6sec_nessmag_cdaweb/$Y
AccessFilenameTemplate
hel1_6sec_nessmag_$Y$m$d_$v.cdf
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF
Availability
Online
AccessRights
Open
AccessURL
Name
CDAWeb Programmatic Data Access
URL
https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/HEL1_6SEC_NESSMAG/clientLibraryExample/
Style
WebService
ProductKey
HEL1_6SEC_NESSMAG
Description
Access to this data from common programming environments. Note: this AccessInformation element was added by HDPWS.
Format
Binary
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
HEL1_6SEC_NESSMAG
Description
Web Service to this product using the HAPI interface.
Format
CSV
InstrumentIDs
spase://SMWG/Instrument/Helios1/E3
MeasurementType
MagneticField
TemporalDescription
TimeSpan
StartDate
1981-06-16 23:59:59
StopDate
1997-12-15 00:00:00Z
Cadence
PT6S
ObservedRegion
Heliosphere.Inner
Parameter #1
Name
Helios number
ParameterKey
Column_1
Description
Number of the Helios spacecraft (1 or 2)
Support
SupportQuantity
Other
Parameter #2
Name
Year
ParameterKey
Column_2
Description
Two digit year
Support
SupportQuantity
Temporal
Parameter #3
Name
Day of Year
ParameterKey
Column_3
Description
Day of year (1=jan 1st)
Support
SupportQuantity
Temporal
Parameter #4
Name
Hour
ParameterKey
Column_4
Description
hour of data point
Support
SupportQuantity
Temporal
Parameter #5
Name
Minute
ParameterKey
Column_5
Description
minute of data point
Support
SupportQuantity
Temporal
Parameter #6
Name
Second
ParameterKey
Column_6
Description
second of data point
Support
SupportQuantity
Temporal
Parameter #7
Name
N
ParameterKey
Column_7
Description
Number of data points in the average
Support
SupportQuantity
Other
Parameter #8
Name
Bxse
ParameterKey
Column_8
Description
X Component of the magnetic field in SE Coordinates
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SE
Field
Qualifier
Component.I
FieldQuantity
Magnetic
Parameter #9
Name
Byse
ParameterKey
Column_9
Description
Y Component of the magnetic field in SE Coordinates
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SE
Field
Qualifier
Component.J
FieldQuantity
Magnetic
Parameter #10
Name
Bzse
ParameterKey
Column_10
Description
Z Component of the magnetic field in SE Coordinates
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SE
Field
Qualifier
Component.K
FieldQuantity
Magnetic
Parameter #11
Name
B
ParameterKey
Column_11
Description
Field magnitude average
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SE
Field
Qualifier
Magnitude
FieldQuantity
Magnetic
Parameter #12
Name
Bxse Standard Deviation
ParameterKey
Column_12
Description
Standard deviation of X Component of the magnetic field in SE Coordinates
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SE
Field
Qualifier
StandardDeviation
Qualifier
Component.I
FieldQuantity
Magnetic
Parameter #13
Name
Byse Standard Deviation
ParameterKey
Column_13
Description
Standard deviation of Y Component of the magnetic field in SE Coordinates
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SE
Field
Qualifier
StandardDeviation
Qualifier
Component.J
FieldQuantity
Magnetic
Parameter #14
Name
Bzse Standard Deviation
ParameterKey
Column_14
Description
Standard deviation of Z Component of the magnetic field in SE Coordinates
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SE
Field
Qualifier
StandardDeviation
Qualifier
Component.K
FieldQuantity
Magnetic
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Last Updated: 2025-12-04