Data Access

SDO/HMI Vector Magnetic Field

(2011). SDO/HMI Vector Magnetic Field. [Data set]. Joint Science Operations Center (JSOC), Stanford University. https://doi.org/10.48322/qa09-xp16. Accessed on .

Note: Proper references, including 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/SDO/HMI/Vector_Magnetic_Field/PT720S

Description

The vector magnetic field is derived from full-disk filtergrams collected in a 135-second sequence. (90 seconds after 13 April 2016). The observations are obtained in polarized light at several wavelengths across a spectral line. The filtergrams are calibrated and registered to account for solar rotation before being combined to provide Stokes polarization parameters. The parameters are used to determine the magnetic and other plasma parameters using VFISV, a Milne-Eddington inversion code. The final step is to disambiguate the data, that is to infer the azimuthal direction of the transverse field.

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Details

Version:2.6.1

NumericalData

ResourceID

spase://NASA/NumericalData/SDO/HMI/Vector_Magnetic_Field/PT720S

ResourceHeader

ResourceName

SDO/HMI Vector Magnetic Field

DOI

https://doi.org/10.48322/qa09-xp16

ReleaseDate

2024-11-01 00:08:46

RevisionHistory

RevisionEvent

ReleaseDate

2024-11-01 00:08:46

Note

Metadata created by SY

RevisionEvent

ReleaseDate

2024-11-18 00:08:46

Note

Added DOI by SY

Description

PublicationInfo

Authors

The HMI Consortium: Stanford University (USA); NASA Goddard Space Flight Center (USA); Lockheed Martin Solar and Astrophysics Laboratory (USA); National Center for Atmospheric Research (USA);

PublicationDate

2011-01-21 00:00:00

PublishedBy

Joint Science Operations Center (JSOC), Stanford University

Contacts

	Role	Person	StartDate	StopDate	Note
1.	PrincipalInvestigator	spase://SMWG/Person/Philip.H.Scherrer
2.	GeneralContact	spase://SMWG/Person/Rick.Bogart

InformationURL

Name

The HMI website at Stanford

URL

http://hmi.stanford.edu/

InformationURL

Name

The SDO/HMI Instrument paper

URL

https://doi.org/10.1007/s11207-011-9834-2

AccessInformation

RepositoryID

spase://SMWG/Repository/Stanford/HMI-AIA.JSOC

Availability

Online

AccessRights

Open

AccessURL

Name

JSOC Data Center

URL

http://jsoc.stanford.edu/ajax/lookdata.html?ds=hmi.B_720s[2020-01-01T00:00:00/60m]

Style

Description

Change the date and the time to find the HMI data.

AccessURL

Name

SDO/HMI Data Search via Virtual Solar Observatory

URL

https://sdac.virtualsolar.org/cgi/search?time=1&instrument=HMI&spectrum=1&version=current&build=1

Description

VSO path to JSOC-resident SDO HMI data files

Format

FITS

InstrumentIDs

spase://SMWG/Instrument/SDO/HMI

MeasurementType

Magnetogram

TemporalDescription

TimeSpan

StartDate

2010-05-01 00:00:00

RelativeStopDate

-P3D

Cadence

PT720S

ObservedRegion

Sun

ObservedRegion

Sun.Photosphere

Parameter #1

Name

FITS Data Array

Description

Vector magnetic field strength

Cadence

PT720S

Units

gauss

Field

Qualifier

Vector

FieldQuantity

Magnetic

SpatialCoverage

CoordinateSystem

CoordinateRepresentation

Cartesian

CoordinateSystemName

HPC

Description

Array size: 4096x4096 Pixel Resolution: 0.504 arcsec