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Data Access
FTPS from SPDF (not with most browsers)
HTTPS from SPDF
CDAWeb
WebService:
CDAWeb Programmatic Data Access
HAPI: CDAWeb HAPI Server
Parker Solar Probe (PSP) Merged Magnetic Field, Plasma, and Ephemeris, Hourly Data
var authors='Papitashvili, Natalia E.';
document.write(authors);
(2020).
Parker Solar Probe (PSP) Merged Magnetic Field, Plasma, and Ephemeris, Hourly Data.
[Data set].
Space Physics Data Facility.
https://doi.org/10.48322/19ed-kz70. 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/ParkerSolarProbe/MAGandPLS/PT1H
Description
The SPDF Coordinated Heliospheric Observations Web, COHOWeb, hourly and daily Parker Solar Probe, PSP, data were made by using high resolution data from from CDAWeb.
The PSP COHO file include data derived from the PSP FIELDS Fluxgate Magnetometer data as well as Densities, Vector Velocities, and Scalar Radial Component Temperatures of Solar Wind Protons measured by the PSP SWEAP Solar Probe Cup, SPC. The original PSP magnetic field data comes from the PSP_FLD_L2_MAG_RTN_1MIN data product while the original plasma data comes from the PSP_SWP_SPC_L3I data product by applying the following conditions:
* Proton bulk velocity from 1-dimensional Maxwellian fitting, only good quality, in the inertial RTN frame
* Total proton number density from 1-dimensional Maxwellian fitting, only good quality
* Proton most probable thermal speed, radial component, from 1-dimensional maxwellian Fitting, only good quality
Citation: Papitashvili, N. E. (2020). Parker Solar Probe (PSP) Merged Magnetic Field, Plasma, and Ephemeris, Hourly Data [Data set]. NASA Space Physics Data Facility. https://doi.org/10.48322/19ed-kz70
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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Edit
Details
Version:2.7.1
NumericalData
ResourceID
spase://NASA/NumericalData/ParkerSolarProbe/MAGandPLS/PT1H
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
Parker Solar Probe (PSP) Merged Magnetic Field, Plasma, and Ephemeris, Hourly Data
DOI
https://doi.org/10.48322/19ed-kz70
ReleaseDate
2026-06-26 13:25:59Z
RevisionHistory
RevisionEvent
ReleaseDate
2021-05-31 12:34:56.789Z
Note
Updated to SPASE Version 2.3.2 if needed, Applied quality control for DOI usage, LFB
RevisionEvent
ReleaseDate
2024-07-02 00:00:00Z
Note
Changed "NSSDC Coordinated Heliospheric Oberservations Web" with "SPDF Coordinated Heliospheric Observations Web" in Description; updated to 2.6.1
RevisionEvent
ReleaseDate
2025-10-03 10:41:21Z
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 13:30:34Z
Note
Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB
RevisionEvent
ReleaseDate
2026-06-26 13:25:59Z
Note
Add 'Z' to RevisionEvent:ReleaseDate(s), PublicationDate, TemporalDescription:TimeSpan:StartDate, TemporalDescription:TimeSpan:StopDate. ZCB
Description
The SPDF Coordinated Heliospheric Observations Web, COHOWeb, hourly and daily Parker Solar Probe, PSP, data were made by using high resolution data from from CDAWeb.
The PSP COHO file include data derived from the PSP FIELDS Fluxgate Magnetometer data as well as Densities, Vector Velocities, and Scalar Radial Component Temperatures of Solar Wind Protons measured by the PSP SWEAP Solar Probe Cup, SPC. The original PSP magnetic field data comes from the PSP_FLD_L2_MAG_RTN_1MIN data product while the original plasma data comes from the PSP_SWP_SPC_L3I data product by applying the following conditions:
* Proton bulk velocity from 1-dimensional Maxwellian fitting, only good quality, in the inertial RTN frame
* Total proton number density from 1-dimensional Maxwellian fitting, only good quality
* Proton most probable thermal speed, radial component, from 1-dimensional maxwellian Fitting, only good quality
Citation: Papitashvili, N. E. (2020). Parker Solar Probe (PSP) Merged Magnetic Field, Plasma, and Ephemeris, Hourly Data [Data set]. NASA Space Physics Data Facility. https://doi.org/10.48322/19ed-kz70
Acknowledgement
Please acknowledge the Principal Investigator N.E. Papitashvili for use of the Data
PublicationInfo
Authors
Papitashvili, Natalia E.
PublicationDate
2020-01-01 00:00:00Z
PublishedBy
Space Physics Data Facility
Contacts
Role
Person
StartDate
StopDate
Note
1.
PrincipalInvestigator
spase://SMWG/Person/Natalia.E.Papitashvili
2.
MetadataContact
spase://SMWG/Person/Robert.M.Candey
3.
MetadataContact
spase://SMWG/Person/Lee.Frost.Bargatze
InformationURL
Name
COHOWeb Service and Data Documentation
URL
https://omniweb.gsfc.nasa.gov/coho/html/cw_data.html
Description
This web site provides a overview description of the data and services provided by the COHOWeb interface and includes spacecraft mission specific notes, the data format specification, and coordinate system descriptions.
InformationURL
Name
COHOWeb Deep Space Hourly and Daily Data and Service web site, GSFC, SPDF
URL
https://omniweb.gsfc.nasa.gov/coho/
Description
Data access and services for hourly and daily merged interplanetary magnetic field, plasma, proton fluxes, and ephemerides data from deep space satellite missions. The services include: 1) Graphical browse and listing, 2) Listing, and plotting with filtering, 3) Distribution functions, medians, averages, standard deviations, 4) Scatter plotting, linear regression fitting, 5) FTPS access to hourly data, and 6) FTPS access to high resolution data.
InformationURL
Name
OMNIWeb Plus Interface Description
URL
https://omniweb.gsfc.nasa.gov/html/about_interface.html
Description
The OMNIWeb Plus integrated interface provides access to the many interplanetary magnetic field, plasma, and energetic particle data sets hosted by the Goddard Space Flight Center, GSFC, Space Physics Data Facility, SPDF. OMNIWeb Plus services are available via several underlying interfaces including: OMNIWeb, COHOWeb, FTPBrowser, CDAWeb, HelioWeb, and direct HTTPS access that offering various functionalities.
InformationURL
Name
OMNIWeb Plus Deep Space Data and Service web site, GSFC, SPDF
URL
https://omniweb.gsfc.nasa.gov/
Description
Paths to magnetic field, plasma, energetic particle, and ephemeris data relevant to heliospheric studies resident at the Goddard Space Flight Center, GSFC, Space Physics Data Facility, SPDF
InformationURL
Name
OMNI Data Rules of the Road
URL
https://omniweb.gsfc.nasa.gov/html/citing.html
Description
OMNI Data Usage Citation Instructions
PriorIDs
spase://VSPO/NumericalData/ParkerSolarProbe/MAGandPLS/PT1H
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
FTPS from SPDF (not with most browsers)
URL
ftps://spdf.gsfc.nasa.gov/pub/data/psp/coho1hr_magplasma/cdf/
Description
Access to Data in CDF Format via ftp from SPDF
AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/psp/coho1hr_magplasma/cdf/
Description
Access to Data in CDF Format via http from SPDF
AccessURL
Name
CDAWeb
URL
https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=PSP_COHO1HR_MERGED_MAG_PLASMA&index=sp_phys
ProductKey
PSP_COHO1HR_MERGED_MAG_PLASMA
Description
Access to ASCII, CDF, and Plots via NASA/GSFC CDAWeb
Format
CDF
Encoding
None
AccessDirectoryTemplate
https://cdaweb.gsfc.nasa.gov/pub/data/psp/coho1hr_magplasma/cdf/$Y
AccessFilenameTemplate
psp_coho1hr_merged_mag_plasma_$Y$m$d_$v.cdf
Acknowledgement
Please acknowledge the Principal Investigator N.E. Papitashvili. Please acknowledge the Data Providers and CDAWeb when using these Data.
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/PSP_COHO1HR_MERGED_MAG_PLASMA/clientLibraryExample/
Style
WebService
ProductKey
PSP_COHO1HR_MERGED_MAG_PLASMA
Description
Access to this data from common programming environments. Note: this AccessInformation element was added by HDPWS.
Format
Binary
Acknowledgement
Please acknowledge the Principal Investigator N.E. Papitashvili. Please acknowledge the Data Providers and CDAWeb when using these Data.
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
CDAWeb HAPI Server
URL
https://cdaweb.gsfc.nasa.gov/hapi
Style
HAPI
ProductKey
PSP_COHO1HR_MERGED_MAG_PLASMA
Description
Web Service to this product using the HAPI interface.
Format
CSV
Acknowledgement
Please acknowledge the Principal Investigator N.E. Papitashvili. Please acknowledge the Data Providers and CDAWeb when using these Data.
ProcessingLevel
Calibrated
InstrumentIDs
spase://SMWG/Instrument/ParkerSolarProbe/Ephemeris
spase://SMWG/Instrument/ParkerSolarProbe/FIELDS/MAG
spase://SMWG/Instrument/ParkerSolarProbe/SWEAP/SPC
MeasurementType
Ephemeris
MeasurementType
MagneticField
MeasurementType
ThermalPlasma
TemporalDescription
TimeSpan
StartDate
2018-01-01 00:00:00.000Z
StopDate
2019-12-01 23:59:59.999Z
Cadence
PT1H
ObservedRegion
Heliosphere
ObservedRegion
Heliosphere.Inner
ObservedRegion
Heliosphere.NearEarth
ObservedRegion
Sun.Corona
Parameter #1
Name
Epoch Time
ParameterKey
Epoch
Description
Epoch Time Tags
Caveats
This Parameter exhibits an increasing Monotonic Progression
Cadence
PT1H
Units
ms
UnitsConversion
1.0e-3>s
RenderingHints
AxisLabel
Epoch
ValueFormat
E14.8
ScaleMin
6.3681962619904e+13
ScaleMax
6.4060653819904e+13
ScaleType
LinearScale
ValidMin
01-Jan-2018 00:00:00.000
ValidMax
01-Jan-2030 00:00:00.000
FillValue
31-Dec-9999 23:59:59.999
Support
SupportQuantity
Temporal
Parameter #2
Name
PSP Spacecraft Position, Heliocentric Radial Distance
Set
Time series defined by using: EPOCH
ParameterKey
radialDistance
Description
Parker Solar Probe Spacecraft Position, Heliocentric Radial Distance
Cadence
PT1H
Units
ua
UnitsConversion
1.495978706961e11>m
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
HGI
RenderingHints
DisplayType
TimeSeries
AxisLabel
Radial Distance
ValueFormat
F7.2
ValidMin
0.1
ValidMax
10.0
FillValue
-1.0e+31
Support
Qualifier
Scalar
Qualifier
Magnitude
SupportQuantity
Positional
Parameter #3
Name
PSP Spacecraft Position, Latitude, HGI Coordinates
Set
Time series defined by using: EPOCH
ParameterKey
heliographicLatitude
Description
Parker Solar Probe Spacecraft Position, Latitude, Heliographic, HGI, Spherical Coordinates
Cadence
PT1H
Units
°
UnitsConversion
0.0174532925>rad
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
HGI
RenderingHints
DisplayType
TimeSeries
AxisLabel
HGI_Lat
ValueFormat
F7.1
ValidMin
-90.0
ValidMax
90.0
FillValue
-1.0e+31
Support
Qualifier
DirectionAngle.ElevationAngle
SupportQuantity
Positional
Parameter #4
Name
PSP Spacecraft Position, Longitude, HGI Coordinates
Set
Time series defined by using: EPOCH
ParameterKey
heliographicLongitude
Description
Parker Solar Probe Spacecraft Position, Longitude, Heliographic, HGI, Spherical Coordinates
Cadence
PT1H
Units
°
UnitsConversion
0.0174532925>rad
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
HGI
RenderingHints
DisplayType
TimeSeries
AxisLabel
HGI_Long
ValueFormat
F7.1
ValidMin
0.0
ValidMax
360.0
FillValue
-1.0e+31
Support
Qualifier
DirectionAngle.AzimuthAngle
SupportQuantity
Positional
Parameter #5
Name
Interplanetary Magnetic Field, R-component, RTN Coordinates
Set
Time series defined by using: EPOCH
ParameterKey
BR
Description
Interplanetary Magnetic Field, IMF, Radial component, BR, Radial-Tangential-Normal, RTN, Cartesian Coordinates
Cadence
PT1H
Units
nT
UnitsConversion
1.0e-9>T
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
RTN
RenderingHints
DisplayType
TimeSeries
AxisLabel
BR_(RTN)
ValueFormat
F9.2
ValidMin
-10000.0
ValidMax
10000.0
FillValue
-1.0e+31
Field
Qualifier
Component.I
FieldQuantity
Magnetic
Parameter #6
Name
Interplanetary Magnetic Field, T-component, RTN Coordinates
Set
Time series defined by using: EPOCH
ParameterKey
BT
Description
Interplanetary Magnetic Field, IMF, Tangential component, BT, Radial-Tangential-Normal, RTN, Cartesian Coordinates
Cadence
PT1H
Units
nT
UnitsConversion
1.0e-9>T
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
RTN
RenderingHints
DisplayType
TimeSeries
AxisLabel
BT_(RTN)
ValueFormat
F9.2
ValidMin
-1000.0
ValidMax
1000.0
FillValue
-1.0e+31
Field
Qualifier
Component.J
FieldQuantity
Magnetic
Parameter #7
Name
Interplanetary Magnetic Field, N-component, RTN Coordinates
Set
Time series defined by using: EPOCH
ParameterKey
BN
Description
Interplanetary Magnetic Field, IMF, Normal component, BN, Radial-Tangential-Normal, RTN, Cartesian Coordinates
Cadence
PT1H
Units
nT
UnitsConversion
1.0e-9>T
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
RTN
RenderingHints
DisplayType
TimeSeries
AxisLabel
BN_(RTN)
ValueFormat
F9.2
ValidMin
-10000.0
ValidMax
10000.0
FillValue
-1.0e+31
Field
Qualifier
Component.K
FieldQuantity
Magnetic
Parameter #8
Name
Interplanetary Magnetic Field, B, Vector Magnitude
Set
Time series defined by using: EPOCH
ParameterKey
B
Description
Interplanetary Magnetic Field, IMF, Vector Magnitude, B, average of fine time scale magnitudes
Cadence
PT1H
Units
nT
UnitsConversion
1.0e-9>T
RenderingHints
DisplayType
TimeSeries
AxisLabel
B
ValueFormat
F9.2
ValidMin
0.0
ValidMax
10000.0
FillValue
-1.0e+31
Field
Qualifier
Scalar
Qualifier
Magnitude
FieldQuantity
Magnetic
Parameter #9
Name
Proton Velocity, R-component, RTN Coordinates
Set
Time series defined by using: EPOCH
ParameterKey
VR
Description
Proton Velocity Vector, Radial component, VR, Radial-Tangential-Normal, RTN, Cartesian Coordinates
Cadence
PT1H
Units
km/s
UnitsConversion
1.0e3>m/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
RTN
RenderingHints
DisplayType
TimeSeries
AxisLabel
VR_(RTN)
ValueFormat
F8.1
ValidMin
-10000.0
ValidMax
10000.0
FillValue
-1.0e+31
Particle
ParticleType
Proton
Qualifier
Component.I
ParticleQuantity
Velocity
AtomicNumber
1
Parameter #10
Name
Proton Velocity, T-component, RTN Coordinates
Set
Time series defined by using: EPOCH
ParameterKey
VT
Description
Proton Velocity Vector, Tangential component, VT, Radial-Tangential-Normal, RTN, Cartesian Coordinates
Cadence
PT1H
Units
km/s
UnitsConversion
1.0e3>m/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
RTN
RenderingHints
DisplayType
TimeSeries
AxisLabel
VT_(RTN)
ValueFormat
F8.1
ValidMin
-10000.0
ValidMax
10000.0
FillValue
-1.0e+31
Particle
ParticleType
Proton
Qualifier
Component.J
ParticleQuantity
Velocity
AtomicNumber
1
Parameter #11
Name
Proton Velocity, N-component, RTN Coordinates
Set
Time series defined by using: EPOCH
ParameterKey
VN
Description
Proton Velocity Vector, Normal component, VN, Radial-Tangential-Normal, RTN, Cartesian Coordinates
Cadence
PT1H
Units
km/s
UnitsConversion
1.0e3>m/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
RTN
RenderingHints
DisplayType
TimeSeries
AxisLabel
VN_(RTN)
ValueFormat
F8.1
ValidMin
-10000.0
ValidMax
10000.0
FillValue
-1.0e+31
Particle
ParticleType
Proton
Qualifier
Component.K
ParticleQuantity
Velocity
AtomicNumber
1
Parameter #12
Name
Proton Bulk Speed, V
Set
Time series defined by using: EPOCH
ParameterKey
ProtonSpeed
Description
Proton Bulk Speed, V, average of fine time scale magnitudes
Cadence
PT1H
Units
km/s
UnitsConversion
1.0e3>m/s
RenderingHints
DisplayType
TimeSeries
AxisLabel
proton_speed
ValueFormat
F8.1
ValidMin
100.0
ValidMax
90000.0
FillValue
-1.0e+31
Particle
ParticleType
Proton
Qualifier
Scalar
Qualifier
Magnitude
ParticleQuantity
Velocity
AtomicNumber
1
Parameter #13
Name
Proton Flow Elevation Angle, θ, RTN Coordinates
Set
Time series defined by using: EPOCH
ParameterKey
flow_theta
Description
Proton Flow Elevation/Latitude Angle, θ, Radial-Tangential-Normal, RTN, Spherical Coordinates
Cadence
PT1H
Units
°
UnitsConversion
0.0174532925>rad
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
RTN
RenderingHints
DisplayType
TimeSeries
AxisLabel
flow_Lat_(RTN)
ValueFormat
F8.1
ValidMin
-89.0
ValidMax
89.0
FillValue
-1.0e+31
Particle
ParticleType
Proton
Qualifier
DirectionAngle.ElevationAngle
ParticleQuantity
Velocity
AtomicNumber
1
Parameter #14
Name
Proton Flow Azimuth Angle, ϕ, RTN Coordinates
Set
Time series defined by using: EPOCH
ParameterKey
flow_lon
Description
Proton Flow Azimuth/Longitude Angle, ϕ, Radial-Tangential-Normal, RTN, Spherical Coordinates
Cadence
PT1H
Units
°
UnitsConversion
0.0174532925>rad
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
RTN
RenderingHints
DisplayType
TimeSeries
AxisLabel
SW_Lon_(RTN)
ValueFormat
F8.1
ValidMin
-180.0
ValidMax
180.0
FillValue
-1.0e+31
Particle
ParticleType
Proton
Qualifier
DirectionAngle.AzimuthAngle
ParticleQuantity
Velocity
AtomicNumber
1
Parameter #15
Name
Proton Density, n
Set
Time series defined by using: EPOCH
ParameterKey
protonDensity
Description
Proton Number Density, n, Total
Cadence
PT1H
Units
cm^-3
UnitsConversion
1.0e6>m^-3
RenderingHints
DisplayType
TimeSeries
AxisLabel
proton_dens
ValueFormat
F8.1
ValidMin
0.0
ValidMax
10000.0
FillValue
-1.0e+31
Particle
ParticleType
Proton
Qualifier
Total
ParticleQuantity
NumberDensity
AtomicNumber
1
Parameter #16
Name
Proton Temperature, T
Set
Time series defined by using: EPOCH
ParameterKey
protonTemp
Description
Proton Temperature, T, scalar radial component
Cadence
PT1H
Units
°K
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
RTN
RenderingHints
DisplayType
TimeSeries
AxisLabel
Proton_temp
ValueFormat
F10.0
ValidMin
1000.0
ValidMax
9.0e+07
FillValue
-1.0e+31
Particle
ParticleType
Proton
Qualifier
Scalar
Qualifier
Component.I
ParticleQuantity
Temperature
AtomicNumber
1