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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
PSP FIELDS Merged Searchcoil Magnetometer, SCM, and Magnetometer, MAG, (SCAM) Waveform, Level 3 (L3), 7 s Data
var authors='Bale, Stuart D; Bowen, Trevor; Dudok de Wit, Thierry; Pulupa, Marc; Quinn, Timothy; Schroeder, Peter';
document.write(authors);
(2020).
PSP FIELDS Merged Searchcoil Magnetometer, SCM, and Magnetometer, MAG, (SCAM) Waveform, Level 3 (L3), 7 s Data.
[Data set].
NASA Space Physics Data Facility.
https://doi.org/10.48322/baqw-yt37. Accessed on document.write(currentDateStr);.
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ResourceID
spase://NASA/NumericalData/ParkerSolarProbe/FIELDS/Merged/SCAM/Waveform/Level3/PT7S
Description
PSP FIELDS Merged Search Coil Magnetometer and Fluxgate Magnetometer (SCaM), SCaM data.
Merged SCaM data is composed of SCM and MAG data from the FIELDS experiment on the Parker Solar Probe spacecraft [1]. For a full description of the FIELDS experiment, see [2]. The SCM is sampled by the Digital Fields Board (DFB), discussed in ref. [3]. For an overview of FIELDS/MAG calibration see ref. [4].
SCaM data consists of continuous time-series data from the SCM and MAG sensors. Merged SCaM data is a Level 3 (l3) product derived from the direct sum of weighted and time corrected l1 MAG and SCM data [4]. The weighting coefficients are designed to optimize the SCaM signal to the integrated instrumental noise floor.
The Level 3 SCaM product uses SCM data which has been calibrated for (i) DFB in-band gain, (ii) DFB analog filter gain/phase response, (iii) DFB digital filter gain/phase response, and (iv) the SCM preamplifier gain/phase response. The SCM data is empirically gain-matched to the MAG, with correction factors included in the metadata [4]. Information on SCM sample rate is provided at a 1 min cadence.
The Level 3 SCaM product uses orthogonalized MAG data with spacecraft zero offsets removed. Spacecraft zero offset data, along with the native MAG range and sample-rate meta-data is provided at a 1 minute cadence.
The Level 3 SCaM data product in this file may be in spacecraft coordinates (e.g. X,Y,Z), RTN coordinates (R,T,N), or SCM sensor coordinates (U,V,W). For large parts of the PSP mission, anomalous performance of the SCM sensor-X axis (in the U direction) precludes merging in SC or RTN coordinates. In these cases data is only provided for the SCM sensor coordinate system (V,W).
References:
1. Fox, N.J., Velli, M.C., Bale, S.D. et al. Space Sci Rev (2016) 204: 7. https://doi.org/10.1007/s1121401502116
2. Bale, S.D., Goetz, K., Harvey, P.R. et al. Space Sci Rev (2016) 204: 49. https://doi.org/10.1007/s1121401602445
3. Malaspina, D.M., Ergun, R.E., Bolton, M. et al. (2016) JGR Space Physics, 121, 5088-5096. https://doi.org/10.1002/2016JA022344
4. Bowen, T.A., Bale, S.D., Bonnell, J.W., Dudok DeWit, T. et al. (2020) JGR Space Physics, https://doi.org/10.1029/2020JA027813
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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Details
Version:2.7.1
NumericalData
ResourceID
spase://NASA/NumericalData/ParkerSolarProbe/FIELDS/Merged/SCAM/Waveform/Level3/PT7S
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
PSP FIELDS Merged Searchcoil Magnetometer, SCM, and Magnetometer, MAG, (SCAM) Waveform, Level 3 (L3), 7 s Data
DOI
https://doi.org/10.48322/baqw-yt37
ReleaseDate
2025-12-04 13:30:20Z
RevisionHistory
RevisionEvent
ReleaseDate
2023-07-26 12:34:56.789Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2025-10-06 09:05:33.881Z
Note
Initial SPASE XML resource description submission, metadata generated by SAB
RevisionEvent
ReleaseDate
2025-11-04 23:00:19Z
Note
Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. Added ResourceType and NamingAuthority. Added DOI. TLK
RevisionEvent
ReleaseDate
2025-12-04 13:30:20Z
Note
Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB
Description
PSP FIELDS Merged Search Coil Magnetometer and Fluxgate Magnetometer (SCaM), SCaM data.
Merged SCaM data is composed of SCM and MAG data from the FIELDS experiment on the Parker Solar Probe spacecraft [1]. For a full description of the FIELDS experiment, see [2]. The SCM is sampled by the Digital Fields Board (DFB), discussed in ref. [3]. For an overview of FIELDS/MAG calibration see ref. [4].
SCaM data consists of continuous time-series data from the SCM and MAG sensors. Merged SCaM data is a Level 3 (l3) product derived from the direct sum of weighted and time corrected l1 MAG and SCM data [4]. The weighting coefficients are designed to optimize the SCaM signal to the integrated instrumental noise floor.
The Level 3 SCaM product uses SCM data which has been calibrated for (i) DFB in-band gain, (ii) DFB analog filter gain/phase response, (iii) DFB digital filter gain/phase response, and (iv) the SCM preamplifier gain/phase response. The SCM data is empirically gain-matched to the MAG, with correction factors included in the metadata [4]. Information on SCM sample rate is provided at a 1 min cadence.
The Level 3 SCaM product uses orthogonalized MAG data with spacecraft zero offsets removed. Spacecraft zero offset data, along with the native MAG range and sample-rate meta-data is provided at a 1 minute cadence.
The Level 3 SCaM data product in this file may be in spacecraft coordinates (e.g. X,Y,Z), RTN coordinates (R,T,N), or SCM sensor coordinates (U,V,W). For large parts of the PSP mission, anomalous performance of the SCM sensor-X axis (in the U direction) precludes merging in SC or RTN coordinates. In these cases data is only provided for the SCM sensor coordinate system (V,W).
References:
1. Fox, N.J., Velli, M.C., Bale, S.D. et al. Space Sci Rev (2016) 204: 7. https://doi.org/10.1007/s1121401502116
2. Bale, S.D., Goetz, K., Harvey, P.R. et al. Space Sci Rev (2016) 204: 49. https://doi.org/10.1007/s1121401602445
3. Malaspina, D.M., Ergun, R.E., Bolton, M. et al. (2016) JGR Space Physics, 121, 5088-5096. https://doi.org/10.1002/2016JA022344
4. Bowen, T.A., Bale, S.D., Bonnell, J.W., Dudok DeWit, T. et al. (2020) JGR Space Physics, https://doi.org/10.1029/2020JA027813
Acknowledgement
Please acknowledge the Principal Investigator S. D. Bale for use of the Data
PublicationInfo
Authors
Bale, Stuart D; Bowen, Trevor; Dudok de Wit, Thierry; Pulupa, Marc; Quinn, Timothy; Schroeder, Peter
PublicationDate
2020-01-01 00:00:00
PublishedBy
NASA Space Physics Data Facility
Contacts
Role
Person
StartDate
StopDate
Note
1.
PrincipalInvestigator
spase://SMWG/Person/Stuart.D.Bale
2.
MetadataContact
spase://SMWG/Person/Robert.M.Candey
3.
MetadataContact
spase://SMWG/Person/Scott.Boardsen
InformationURL
Name
Data Link
URL
http://fields.ssl.berkeley.edu/data/
Description
PSP/FIELDS SOC
Language
en
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/fields/l3/merged_scam_wf/
Description
Access to Data in CDF Format via ftps from SPDF
AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/psp/fields/l3/merged_scam_wf/
Description
Access to Data in CDF Format via https from SPDF
AccessURL
Name
CDAWeb
URL
https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=PSP_FLD_L3_MERGED_SCAM_WF&index=sp_phys
ProductKey
PSP_FLD_L3_MERGED_SCAM_WF
Description
Access to ASCII, CDF, and Plots via NASA/GSFC CDAWeb
Format
CDF
Encoding
None
AccessDirectoryTemplate
https://cdaweb.gsfc.nasa.gov/pub/data/psp/fields/l3/merged_scam_wf/$Y
AccessFilenameTemplate
psp_fld_l3_merged_scam_wf_$Y$m$d$H_$v.cdf
Acknowledgement
Please acknowledge the Principal Investigator S. D. Bale. 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_FLD_L3_MERGED_SCAM_WF/clientLibraryExample/
Style
WebService
ProductKey
PSP_FLD_L3_MERGED_SCAM_WF
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 S. D. Bale. 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_FLD_L3_MERGED_SCAM_WF
Description
Web Service to this product using the HAPI interface.
Format
CSV
Acknowledgement
Please acknowledge the Principal Investigator S. D. Bale. Please acknowledge the Data Providers and CDAWeb when using these Data.
ProcessingLevel
Calibrated
InstrumentIDs
spase://SMWG/Instrument/ParkerSolarProbe/FIELDS/MAG
spase://SMWG/Instrument/ParkerSolarProbe/FIELDS/SCM
MeasurementType
InstrumentStatus
MeasurementType
MagneticField
TemporalDescription
TimeSpan
StartDate
2018-10-02 03:48:16.000
RelativeStopDate
-P6M
Cadence
PT7S
ObservedRegion
Heliosphere
ObservedRegion
Heliosphere.Inner
ObservedRegion
Heliosphere.NearEarth
ObservedRegion
Sun.Corona
Parameter #1
Name
Epoch Time, TT2000, SCAM Waveform Data
ParameterKey
epoch
Description
Epoch Time Tags in Terrestrial Time 2000, TT2000, for Search Coil and Fluxgate Magnetometer Waveform Data
Caveats
This Parameter exhibits an increasing Monotonic Progression
Units
ns
UnitsConversion
1.0e-9>s
RenderingHints
AxisLabel
epoch
ValueFormat
I22
ScaleMin
6.3708163419904e+13
ScaleMax
6.3708185019904e+13
ValidMin
2010-01-01T00:00:00.000000000
ValidMax
2050-01-01T00:00:00.000000000
FillValue
9999-12-31T23:59:59.999999999
Support
SupportQuantity
Temporal
Parameter #2
Name
psp_fld_l3_merged_scam_wf_uvw
Set
Time series defined by using: epoch
ParameterKey
psp_fld_l3_merged_scam_wf_uvw
Description
L3 Magnetic Field from Merged MAG and SCM in SCM sensor (uvw) coordinates
Cadence
PT7S
Units
nT
RenderingHints
DisplayType
TimeSeries
ValueFormat
F10.3
Structure
Size
3
Element
Name
B_U
Index
1
Element
Name
B_V
Index
2
Element
Name
B_W
Index
3
ValidMin
-65536.0
ValidMax
65536.0
FillValue
-1.0e+31
Field
Qualifier
Vector
FieldQuantity
Magnetic
Parameter #3
Name
Magnetic Field Vector, Merged Search Coil and Fluxgate Magnetometer, Spacecraft coordinates, L3 data
Set
Time series defined by using: epoch
ParameterKey
psp_fld_l3_merged_scam_wf_SC
Description
Magnetic Field Vector, from Merged Search Coil Magnetometer, SCM, and Fluxgate Magnetometer, MAG, Spacecraft, SC, coordinate, Level 3 data
Cadence
PT7S
Units
nT
UnitsConversion
1.0e-9>T
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SC
Field
Qualifier
Vector
FieldQuantity
Magnetic
Parameter #4
Name
psp_fld_l3_merged_scam_wf_RTN
Set
Time series defined by using: epoch
ParameterKey
psp_fld_l3_merged_scam_wf_RTN
Description
L3 Magnetic Field from Merged MAG and SCM in RTN coordinates
Cadence
PT7S
Units
nT
RenderingHints
DisplayType
TimeSeries
ValueFormat
F10.3
Structure
Size
3
Element
Name
B_R
Index
1
Element
Name
B_T
Index
2
Element
Name
B_N
Index
3
ValidMin
-65536.0
ValidMax
65536.0
FillValue
-1.0e+31
Field
Qualifier
Vector
FieldQuantity
Magnetic
Parameter #5
Name
Frequency Array, Search Coil and Fluxgate Magnetometer Noise Floor data
ParameterKey
f_noise
Description
Frequency Array for Search Coil, SCM, and Fluxgate Magnetometer, MAG, Noise Floor data
Caveats
This Parameter exhibits an increasing Monotonic Progression
Units
Hz
RenderingHints
AxisLabel
Frequency
ValueFormat
F10.3
ValidMin
0.0
ValidMax
293.0
FillValue
-1.0e+31
Support
SupportQuantity
Other
Parameter #6
Name
Trace Noise Floor, Fluxgate Magnetometer, Range 0
Set
Time series defined by using: f_noise
ParameterKey
mag_trace_noise_floor
Description
Trace Noise Floor for Fluxgate Magnetometer, MAG, Range 0, data
Cadence
PT7S
Units
nT^2/Hz
UnitsConversion
1.0e-18>T^2/Hz
RenderingHints
ValueFormat
E12.3
ValidMin
1.432e-05
ValidMax
7.883e-05
Field
Qualifier
Minimum
FieldQuantity
Magnetic
Parameter #7
Name
Trace Noise Floor, Search Coil Magnetometer, High Gain
Set
Time series defined by using: f_noise
ParameterKey
scm_trace_noise_floor
Description
Trace Noise Floor for Search Coil Magnetometer, SCM, High Gain, HG, data
Cadence
PT7S
Units
nT^2/Hz
UnitsConversion
1.0e-18>T^2/Hz
RenderingHints
ValueFormat
E12.3
ValidMin
3.173e-08
ValidMax
0.00206
Field
Qualifier
Minimum
FieldQuantity
Magnetic
Parameter #8
Name
Meta-Data Timestamp, SCAM
ParameterKey
meta_epoch
Description
Meta-Data Timestamp, Time Base for combined Search Coil Magnetometer, SCM, and Fluxgate Magnetometer, MAG, data, 1 s cadence
Caveats
This Parameter exhibits an increasing Monotonic Progression
Units
ns
UnitsConversion
1.0e-9>s
RenderingHints
AxisLabel
meta_epoch
ValueFormat
I22
ScaleMin
6.3708163419904e+13
ScaleMax
6.3708185020904e+13
ValidMin
2010-01-01T00:00:00.000000000
ValidMax
2050-01-01T00:00:00.000000000
FillValue
9999-12-31T23:59:59.999999999
Support
SupportQuantity
Temporal
Parameter #9
Name
Sample Rate for DFB, SCM, HG Data
Set
Time series defined by using: meta_epoch
ParameterKey
psp_fld_l3_merged_scam_scm_sample_rate
Description
Sample Rate assigned to Digital Filter Bank, DFB, Search Coil Magnetometer, SCM, High Gain, HG, Data
Cadence
PT7S
Units
s^-1
RenderingHints
DisplayType
TimeSeries
ValueFormat
F10.3
Structure
Size
3
Element
Name
B_X
Index
1
Element
Name
B_Y
Index
2
Element
Name
B_Z
Index
3
ValidMin
1.144
ValidMax
18750.0
FillValue
-1.0e+31
Support
Qualifier
Array
SupportQuantity
InstrumentMode
Parameter #10
Name
Sample Rate for MAGo Data
Set
Time series defined by using: meta_epoch
ParameterKey
psp_fld_l3_merged_scam_mag_sample_rate
Description
Sample Rate assigned to Digital Filter Bank, DFB, Outboard Fluxgate Magnetometer, MAGo, Data
Cadence
PT7S
Units
s^-1
RenderingHints
DisplayType
TimeSeries
ValueFormat
F10.3
ValidMin
1.144
ValidMax
18750.0
FillValue
-1.0e+31
Support
Qualifier
Scalar
SupportQuantity
InstrumentMode
Parameter #11
Name
Reaction Wheel Frequencies
Set
Time series defined by using: meta_epoch
ParameterKey
psp_fld_l3_merged_scam_rxn_whl
Description
Reaction Wheel Frequencies, from Spacecraft Housekeeping
Cadence
PT7S
Units
Hz
RenderingHints
DisplayType
TimeSeries
ValueFormat
F10.3
Structure
Size
4
Element
Name
0
Index
1
Element
Name
1
Index
2
Element
Name
2
Index
3
Element
Name
3
Index
4
ValidMin
0.0
ValidMax
512.0
FillValue
-1.0e+31
Support
Qualifier
Array
SupportQuantity
InstrumentMode
Parameter #12
Name
Outboard Fluxgate Magnetometer Sample Range setting
Set
Time series defined by using: meta_epoch
ParameterKey
psp_fld_l3_merged_scam_mag_range
Description
Outboard Fluxgate Magnetometer, MAGo, Sample Range setting, Range values: [0,1,2,3]
Cadence
PT7S
RenderingHints
DisplayType
TimeSeries
ValueFormat
F10.3
ValidMin
0.0
ValidMax
4.0
FillValue
-1.0e+31
Support
Qualifier
Scalar
SupportQuantity
InstrumentMode
Parameter #13
Name
Fluxgate Magnetometer Zero Offsets, Spacecraft coordinates
Set
Time series defined by using: meta_epoch
ParameterKey
psp_fld_l3_merged_scam_mag_offset_SC
Description
Fluxgate Magnetometer, MAG, Zero Offset values, Spacecraft, SC, Cartesian coordinates, [u,v,w]
Cadence
PT7S
Units
nT
UnitsConversion
1.0e-9>T
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SC
Field
Qualifier
Vector
FieldQuantity
Magnetic
Parameter #14
Name
Search Coil Magnetometer Gain match to Fluxgate Magnetometer Coefficients
ParameterKey
psp_fld_scm_gain_match
Description
Search Coil Magnetometer, SCM, Gain match to Fluxgate Magnetometer, MAG, Coefficients
RenderingHints
ValueFormat
F10.3
Structure
Size
3
ValidMin
0.0
ValidMax
10.0
FillValue
-1.0e+31
Support
Qualifier
Array
SupportQuantity
InstrumentMode
Parameter #15
Name
Epoch Time, TT2000, FIELDS Data Quality Flags
ParameterKey
epoch_quality_flags
Description
Epoch Time Tags in Terrestrial Time 2000, TT2000, for FIELDS Instrument Suite Data Quality Flags
Caveats
This Parameter exhibits an increasing Monotonic Progression
Units
ns
UnitsConversion
1.0e-9>s
RenderingHints
AxisLabel
epoch
ValueFormat
I22
ScaleMin
6.3708163419904e+13
ScaleMax
6.3708185019904e+13
ValidMin
2010-01-01T00:00:00.000000000
ValidMax
2050-01-01T00:00:00.000000000
FillValue
9999-12-31T23:59:59.999999999
Support
SupportQuantity
Temporal
Parameter #16
Name
quality_flags
Set
Time series defined by using: epoch_quality_flags
ParameterKey
psp_fld_l2_quality_flags
Description
FIELDS quality flag
Caveats
FIELDS quality flags. This is a bitwise variable, meaning that multiple flags can be set for a single time, by adding flag values. Current flagged values are: 1: FIELDS antenna bias sweep, 2: PSP thruster firing, 4: SCM Calibration, 8: PSP rotations for MAG calibration (MAG rolls), 16: FIELDS MAG calibration sequence, 32: SWEAP SPC in electron mode, 64: PSP Solar limb sensor (SLS) test. 128: PSP spacecraft is off umbra pointing. 256: High frequency noise affecting RFS and TDS receivers. 512: Antennas driven towards the FIELDS power supply rails. A value of zero corresponds to no set flags. Not all flags are relevant to all FIELDS data products, refer to notes in the CDF metadata and on the FIELDS SOC website for information on how the various flags impact FIELDS data. For more information on the quality flags describing high frequency noise and antennas driven to the rails, see release notes for PSP/FIELDS releases 8 and 9. Additional flagged items may be added in the future.
Cadence
PT7S
RenderingHints
AxisLabel
flag
ValueFormat
I10
ValidMin
0
ValidMax
255
FillValue
4294967295
Support
Qualifier
Scalar
SupportQuantity
DataQuality
Parameter #17
Name
FIELDS Data Quality Flags
Set
Time series defined by using: epoch_quality_flags
ParameterKey
psp_fld_l3_quality_flags
Description
FIELDS Instrument Suite Data Quality Flags
Caveats
FIELDS quality flags. This is a bitwise variable, meaning that multiple flags can be set for a single time, by adding flag values. Current flagged values are: 1: FIELDS antenna bias sweep, 2: PSP thruster firing, 4: SCM Calibration, 8: PSP rotations for MAG calibration (MAG rolls), 16: FIELDS MAG calibration sequence, 32: SWEAP SPC in electron mode, 64: PSP Solar limb sensor (SLS) test. 128: PSP spacecraft is off umbra pointing. A value of zero corresponds to no set flags. Not all flags are relevant to all FIELDS data products, refer to notes in the CDF metadata and on the FIELDS SOC website for information on how the various flags impact FIELDS data. Additional flagged items may be added in the future.
Cadence
PT7S
RenderingHints
AxisLabel
flag
ValueFormat
I10
ValidMin
0
ValidMax
255
FillValue
4294967295
Support
Qualifier
Scalar
SupportQuantity
InstrumentMode