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Data Access
FTPS from the MMS SDC (not with most browsers)
HTTPS from the MMS SDC
FTPS from SPDF (not with most browsers)
HTTPS from SPDF
CDAWeb
WebService:
CDAWeb Programmatic Data Access
HAPI: CDAWeb HAPI Server
MMS 2 Search Coil Magnetometer (SCM) AC Magnetic Field Level 2 (L2), Survey Mode, 32 Sample/s Data
var authors='Le Contel, Olivier; Torbert, Roy, B.; Mirioni, Laurent; Argall, Matthew, R.; Burch, James, L.';
document.write(authors);
(2022).
MMS 2 Search Coil Magnetometer (SCM) AC Magnetic Field Level 2 (L2), Survey Mode, 32 Sample/s Data.
[Data set].
Laboratory for Atmospheric and Space Physics; Space Physics Data Facility.
https://doi.org/10.48322/tscb-r537. Accessed on document.write(currentDateStr);.
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ResourceID
spase://NASA/NumericalData/MMS/2/FIELDS/SCM/Survey/Level2/PT0.03125S
Description
Search Coil Magnetometer (SCM) AC Magnetic Field (32 samples/s), Level 2, Survey Mode Data. The tri-axial Search-Coil Magnetometer with its associated preamplifier measures three-dimensional magnetic field fluctuations. The analog magnetic waveforms measured by the SCM are digitized and processed inside the Digital Signal Processor (DSP), collected and stored by the Central Instrument Data Processor (CIDP) via the Fields Central Electronics Box (CEB). Prior to launch, all SCM Flight models were calibrated by LPP team members at the National Magnetic Observatory, Chambon-la-Foret (Orleans). Once per orbit, each SCM transfer function is checked thanks to the onboard calibration signal provided by the DSP. The SCM is operated for the entire MMS orbit in survey mode. Within scientific Regions Of Interest (ROI), burst mode data are also acquired as well as high speed burst mode data. This SCM data set corresponds to the AC magnetic field waveforms in nanoTesla and in the GSE frame. The SCM instrument paper can be found at http://link.springer.com/article/10.1007/s11214-014-0096-9 and the SCM data product guide at https://lasp.colorado.edu/mms/sdc/public/datasets/fields/.
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/MMS/2/FIELDS/SCM/Survey/Level2/PT0.03125S
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
MMS 2 Search Coil Magnetometer (SCM) AC Magnetic Field Level 2 (L2), Survey Mode, 32 Sample/s Data
AlternateName
MMS2_SCM_SRVY_L2_SCSRVY
DOI
https://doi.org/10.48322/tscb-r537
ReleaseDate
2026-07-21 12:05:57Z
RevisionHistory
RevisionEvent
ReleaseDate
2021-04-27 15:38:11Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2022-08-04 12:34:56.789Z
Note
Added DOI and PublicationInfo minted by LFB, updated the RepositoryID, updated the SPDF MetadataContact Person to Robert M. Candey, metadata updated to SPASE 2.4.1, reviewed by LFB 20220803
RevisionEvent
ReleaseDate
2023-03-04 12:34:56.789Z
Note
Standardized the ResourceName Format, Set AlternateName equal to the ProductKey, Revised the Acknowledgement, PublicationInfo Authors, and Contact Person list per request of the MMS SCM team, metadata updated to SPASE 2.5.0, reviewed by LFB 20230304
RevisionEvent
ReleaseDate
2023-03-28 12:34:56.789Z
Note
Assign the CoInvestigator Role to Matt Argall per request of the MMS FIELDS/SCM team, revised by LFB 20230328
RevisionEvent
ReleaseDate
2025-10-03 10:41:05Z
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 13:30:04Z
Note
Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB
RevisionEvent
ReleaseDate
2026-06-26 13:24:50Z
Note
Add 'Z' to RevisionEvent:ReleaseDate(s), PublicationDate, TemporalDescription:TimeSpan:StartDate. ZCB
RevisionEvent
ReleaseDate
2026-07-21 12:05:57Z
Note
Added HelioData InformationURL. JWL
Description
Search Coil Magnetometer (SCM) AC Magnetic Field (32 samples/s), Level 2, Survey Mode Data. The tri-axial Search-Coil Magnetometer with its associated preamplifier measures three-dimensional magnetic field fluctuations. The analog magnetic waveforms measured by the SCM are digitized and processed inside the Digital Signal Processor (DSP), collected and stored by the Central Instrument Data Processor (CIDP) via the Fields Central Electronics Box (CEB). Prior to launch, all SCM Flight models were calibrated by LPP team members at the National Magnetic Observatory, Chambon-la-Foret (Orleans). Once per orbit, each SCM transfer function is checked thanks to the onboard calibration signal provided by the DSP. The SCM is operated for the entire MMS orbit in survey mode. Within scientific Regions Of Interest (ROI), burst mode data are also acquired as well as high speed burst mode data. This SCM data set corresponds to the AC magnetic field waveforms in nanoTesla and in the GSE frame. The SCM instrument paper can be found at http://link.springer.com/article/10.1007/s11214-014-0096-9 and the SCM data product guide at https://lasp.colorado.edu/mms/sdc/public/datasets/fields/.
Acknowledgement
Please acknowledge O. Le Contel, R.B. Torbert, L. Mirioni, M.R. Argall, and J.L. Burch for use of these data
PublicationInfo
Authors
Le Contel, Olivier; Torbert, Roy, B.; Mirioni, Laurent; Argall, Matthew, R.; Burch, James, L.
PublicationDate
2022-01-01 00:00:00Z
PublishedBy
Laboratory for Atmospheric and Space Physics; Space Physics Data Facility
Contacts
Role
Person
StartDate
StopDate
Note
1.
InstrumentLeadCoInvestigator
spase://SMWG/Person/Olivier.Le.Contel
2.
InstrumentLeadCoInvestigator
spase://SMWG/Person/Roy.B.Torbert
3.
MetadataContact
spase://SMWG/Person/Laurent.Mirioni
4.
CoInvestigatorScientist
spase://SMWG/Person/Matthew.R.Argall
5.
PrincipalInvestigator
spase://SMWG/Person/James.L.Burch
6.
HostContact
spase://SMWG/Person/MMS_SDC_POC
7.
MetadataContact
spase://SMWG/Person/Robert.M.Candey
8.
MetadataContact
spase://SMWG/Person/Lee.Frost.Bargatze
InformationURL
Name
at GFSC
URL
https://mms.gsfc.nasa.gov/
Description
The Magnetospheric Multiscale (MMS) Mission Home Page hosted by the Goddard Space Flight Center (GSFC).
InformationURL
Name
The MMS LPP SCM Team home page at LPP, CNRS École Polytechnique and Sorbonne Université
URL
https://www.lpp.polytechnique.fr/MMS-SCM-939?lang=en
Description
The Magnetospheric Multiscale (MMS) Search-Coil Magnetometer (SCM) home page hosted by the Laboratoire de Physique des Plasma (LPP), CNRS École Polytechnique and Sorbonne Université
InformationURL
Name
HelioData
URL
https://helio.data.nasa.gov/dataset/MMS_2_FIELDS_SCM_Survey_Level2_PT0.03125S
Description
The HelioData dataset page provides an overview of the dataset with access links, associated variables, and more.
PriorIDs
spase://VSPO/NumericalData/MMS/2/FIELDS/SCM/Survey/Level2/PT0.03125S
AccessInformation
RepositoryID
spase://SMWG/Repository/UCOLO/LASP/MMS_SDC
Availability
Online
AccessRights
Open
AccessURL
Name
FTPS from the MMS SDC (not with most browsers)
URL
ftps://lasp.colorado.edu/mms/sdc/public/data/mms2/scm/srvy/l2/scsrvy/
Description
In CDF via ftp from the MMS Science Data Center
AccessURL
Name
HTTPS from the MMS SDC
URL
https://lasp.colorado.edu/mms/sdc/public/data/mms2/scm/srvy/l2/scsrvy/
Description
In CDF via http from the MMS Science Data Center
Format
CDF
Encoding
None
Acknowledgement
Please acknowledge O. Le Contel, R.B. Torbert, L. Mirioni, M.R. Argall, and J.L. Burch. Also please acknowledge the data providers and CDAWeb when using these data.
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/mms/mms2/scm/srvy/l2/scsrvy/
Description
In CDF via ftp from SPDF
AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/mms/mms2/scm/srvy/l2/scsrvy/
Description
In CDF via http from SPDF
AccessURL
Name
CDAWeb
URL
https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=MMS2_SCM_SRVY_L2_SCSRVY&index=sp_phys
ProductKey
MMS2_SCM_SRVY_L2_SCSRVY
Description
Access to ASCII, CDF, and plots via NASA/GSFC CDAWeb
Format
CDF
Encoding
None
AccessDirectoryTemplate
https://cdaweb.gsfc.nasa.gov/pub/data/mms/mms2/scm/srvy/l2/scsrvy/$Y/$m
AccessFilenameTemplate
mms2_scm_srvy_l2_scsrvy_$Y$m$d_$v.cdf
Acknowledgement
Please acknowledge O. Le Contel, R.B. Torbert, L. Mirioni, M.R. Argall, and J.L. Burch. Also 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/MMS2_SCM_SRVY_L2_SCSRVY/clientLibraryExample/
Style
WebService
ProductKey
MMS2_SCM_SRVY_L2_SCSRVY
Description
Access to this data from common programming environments. Note: this AccessInformation element was added by HDPWS.
Format
Binary
Acknowledgement
Please acknowledge O. Le Contel, R.B. Torbert, L. Mirioni, M.R. Argall, and J.L. Burch. Also please acknowledge the data providers and CDAWeb when using these data.
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
MMS2_SCM_SRVY_L2_SCSRVY
Description
Web Service to this product using the HAPI interface
Format
CSV
Acknowledgement
Please acknowledge O. Le Contel, R.B. Torbert, L. Mirioni, M.R. Argall, and J.L. Burch. Also please acknowledge the data providers and CDAWeb when using these data.
ProcessingLevel
Calibrated
InstrumentIDs
spase://SMWG/Instrument/MMS/2/FIELDS/SCM
MeasurementType
MagneticField
MeasurementType
Waves.Passive
TemporalDescription
TimeSpan
StartDate
2015-09-02 00:00:00Z
RelativeStopDate
-P2M
Cadence
PT0.03125S
ObservedRegion
Earth.Magnetosheath
ObservedRegion
Earth.Magnetosphere
ObservedRegion
Earth.Magnetosphere.Magnetotail
ObservedRegion
Earth.Magnetosphere.Main
ObservedRegion
Earth.Magnetosphere.RadiationBelt
ObservedRegion
Earth.NearSurface.EquatorialRegion
ObservedRegion
Earth.NearSurface.Plasmasphere
ObservedRegion
Heliosphere.NearEarth
Parameter #1
Name
AC Magnetic Field
Set
Time series defined by using: EPOCH
ParameterKey
mms2_scm_acb_gse_scsrvy_srvy_l2
Description
Search Coil AC magnetic vector components in GSE coordinates.
Caveats
These calibrated (nT) AC magnetic field waveform data are sampled at 32 samples/s. They are high-pass filtered above 0.5 Hz but not low-pass filtered. See global attributes for details. For more information, see the SCM data product guide at https://lasp.colorado.edu/mms/sdc/public/datasets/fields/.
Cadence
PT0.03125S
Units
nT
UnitsConversion
1.0e-9>T
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GSE
RenderingHints
DisplayType
TimeSeries
ValueFormat
e13.5
ScaleType
LinearScale
Structure
Size
3
Element
Name
Bx GSE
Index
1
Units
nT
Element
Name
By GSE
Index
2
Units
nT
Element
Name
Bz GSE
Index
3
Units
nT
ValidMin
-30000.0
ValidMax
30000.0
FillValue
NaN
Wave
WaveType
PlasmaWaves
Qualifier
Vector
WaveQuantity
ACMagneticField
Parameter #2
Name
Epoch
ParameterKey
Epoch
Description
Center time of the magnetic field sample
Caveats
This parameter exhibits an increasing monotonic progression.
Cadence
PT0.03125S
Units
ns
UnitsConversion
1.0e-9>s
RenderingHints
AxisLabel
Time
ValueFormat
i20
ScaleType
LinearScale
ValidMin
2010-01-01T00:00:00.000000000
ValidMax
2030-01-01T00:00:00.999999999
FillValue
9999-12-31T23:59:59.999999999
Support
SupportQuantity
Temporal
Parameter #3
Name
Epoch delta
ParameterKey
Epoch_delta
Description
Epoch_delta
Units
ns
UnitsConversion
1.0e-9>s
RenderingHints
ValueFormat
e13.5
ValidMin
0.0
ValidMax
3.125e+07
Support
SupportQuantity
Temporal
Parameter #4
Name
Quality Factor
Set
Time series defined by using: EPOCH
ParameterKey
mms2_scm_qf_scm123_scsrvy_srvy_l2
Description
Magnetic field vector component quality flags, three letter format.
Caveats
Each letter refers to one SCM physical antenna in the SCM123 order. G stands for good data, Z for data that are affected or set to zero by convolution boundary effect, S for saturated data, X for out of range data, B for fillvalue/bad data.
Cadence
PT0.03125S
RenderingHints
ValueFormat
a3
FillValue
XXX
Support
SupportQuantity
Other