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Van Allen Probe B DC-coupled EFW 1-second sensor potentials relative to spacecraft in volts

(2022). Van Allen Probe B DC-coupled EFW 1-second sensor potentials relative to spacecraft in volts. [Data set]. NASA Space Physics Data Facility. https://doi.org/10.48322/e9bt-8x09. 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/RBSP/B/EFW/L2/VSVY/PT1S

Description
This data set contains DC-coupled sensor potentials and negative of spacecraft potential relative to sensor floating potentials from the Electric Field and Waves Suite (EFW) onboard Van Allen Probe A. All six EFW sensor potentials are included. Also included are average potentials from opposing booms, i.e., (V1+V2)/2, (V3+V4)/2, and (V5+V6)/2, from autoscale and fixed scale (-15 to 5 V). These quantities are the negative of the spacecraft potential relative to the sensor floating potential, and have the contribution from the external electric field removed. Four spin-plane components of the electric field are measured at DC-12 Hz with 0.05 mV/m accuracy, and two spin-axis components, with ~3 mV/m accuracy. Spacecraft potentials cover cold plasma densities of 0.1 to ~100 cm-3 at 1-second cadence. The default sampling rate is 16 samp/s at 16-bit resolution, covering a +/- 225-V range. Further details on the EFW instrument in general or these data in particular can be found in the EFW Instrument paper, Wygant et al., 2013 (Space Science Reviews; submitted, 02/2013).

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Details

Version:2.4.1

NumericalData

ResourceID
spase://NASA/NumericalData/RBSP/B/EFW/L2/VSVY/PT1S
ResourceHeader
ResourceName
Van Allen Probe B DC-coupled EFW 1-second sensor potentials relative to spacecraft in volts
DOI
https://doi.org/10.48322/e9bt-8x09
ReleaseDate
2022-08-18 12:34:56.789
RevisionHistory
RevisionEvent
ReleaseDate
2021-04-27 15:38:11
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2022-08-18 12:34:56.789
Note
Added DOI and PublicationInfo minted by LFB, updated InformationURL URLs as needed, updated the SPDF MetadataContact Person to Robert M. Candey, metadata updated to SPASE 2.4.1, reviewed by LFB 20220818
Description
This data set contains DC-coupled sensor potentials and negative of spacecraft potential relative to sensor floating potentials from the Electric Field and Waves Suite (EFW) onboard Van Allen Probe A. All six EFW sensor potentials are included. Also included are average potentials from opposing booms, i.e., (V1+V2)/2, (V3+V4)/2, and (V5+V6)/2, from autoscale and fixed scale (-15 to 5 V). These quantities are the negative of the spacecraft potential relative to the sensor floating potential, and have the contribution from the external electric field removed. Four spin-plane components of the electric field are measured at DC-12 Hz with 0.05 mV/m accuracy, and two spin-axis components, with ~3 mV/m accuracy. Spacecraft potentials cover cold plasma densities of 0.1 to ~100 cm-3 at 1-second cadence. The default sampling rate is 16 samp/s at 16-bit resolution, covering a +/- 225-V range. Further details on the EFW instrument in general or these data in particular can be found in the EFW Instrument paper, Wygant et al., 2013 (Space Science Reviews; submitted, 02/2013).
Acknowledgement
NASA Space Physics Data Facility (SPDF) CDAWeb.
PublicationInfo
Authors
J.R. Wygant
PublicationDate
2022-01-01 00:00:00
PublishedBy
NASA Space Physics Data Facility
Contacts
Role Person StartDate StopDate Note
1. PrincipalInvestigator spase://SMWG/Person/John.R.Wygant
2. GeneralContact spase://SMWG/Person/Robert.M.Candey
3. MetadataContact spase://SMWG/Person/Lee.Frost.Bargatze

InformationURL
Name
EFW home page at the University of Minnesota
URL
http://rbsp.space.umn.edu
Description
Daily Summary Plots and additional L2 data
InformationURL
Name
The Van Allen Probes Home Page
URL
https://vanallenprobes.jhuapl.edu
Description
Science Gateway (including Mission Rules of the Road for Data Usage)
PriorIDs
spase://VSPO/NumericalData/RBSP/B/EFW/VSVY/PT1S
spase://VSPO/NumericalData/RBSP/B/EFW/VSVY/PT1S
spase://ViRBO/NumericalData/RBSP/B/EFW/L2/VSVY-HIRES/
spase://ViRBO/NumericalData/RBSPB_EFW-L2/
spase://VSPO/NumericalData/RBSP/B/EFW/L2/VSVY/PT1S
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWEB
Availability
Online
AccessRights
Open
AccessURL
Name
FTPS from SPDF (not with most browsers)
URL
ftps://spdf.gsfc.nasa.gov/pub/data/rbsp/rbspb/l2/efw/vsvy-highres/
Description
In CDF via ftp from CDAWeb
AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/rbsp/rbspb/l2/efw/vsvy-highres/
Description
In CDF via HTTP from SPDF
Format
CDF
Acknowledgement
Please acknowledge the CDAWeb team at GSFC/SPDF.
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWEB
Availability
Online
AccessRights
Open
AccessURL
Name
CDAWeb
URL
https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=RBSPB_EFW-L2_VSVY-HIRES&index=sp_phys
ProductKey
RBSPB_EFW-L2_VSVY-HIRES
Format
Text
AccessDirectoryTemplate
https://cdaweb.gsfc.nasa.gov/pub/data/rbsp/rbspb/l2/efw/vsvy-highres/$Y
AccessFilenameTemplate
rbspb_efw-l2_vsvy-hires_$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/RBSPB_EFW-L2_VSVY-HIRES/clientLibraryExample/
Style
WebService
ProductKey
RBSPB_EFW-L2_VSVY-HIRES
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
AccessURL
Name
CDAWeb HAPI Server
URL
https://cdaweb.gsfc.nasa.gov/hapi
Style
HAPI
ProductKey
RBSPB_EFW-L2_VSVY-HIRES@0
ProductKey
RBSPB_EFW-L2_VSVY-HIRES@1
Description
Web Service to this product using the HAPI interface.
Format
CSV
InstrumentIDs
spase://SMWG/Instrument/RBSP/B/EFW
MeasurementType
ElectricField
TemporalDescription
TimeSpan
StartDate
2012-09-05 23:21:36.000Z
StopDate
2019-10-18 16:30:00Z
Cadence
PT1S
Parameter #1
Name
Time, UTC
ParameterKey
epoch
Description
Time, UTC
Caveats
Time tags for the survey quantities
Units
UTC
Mixed
MixedQuantity
Other
Parameter #2
Name
EFW Sensor Voltages, V1..V6.
ParameterKey
vsvy
Description
EFW Sensor Voltages, V1..V6.
Caveats
EFW Sensor voltages relative to spacecraft ground.
Structure
Size
6
Mixed
MixedQuantity
Other
Parameter #3
Name
Average potential from opposing booms
ParameterKey
vsvy_vavg
Description
Average potential from opposing booms (autoscale)
Structure
Size
3
Mixed
MixedQuantity
Other
Parameter #4
Name
Average potential from opposing booms
ParameterKey
vsvy_vavg_fixedscale
Description
Average potential from opposing booms (fixed scale -15 to 5 V)
Structure
Size
3
Mixed
MixedQuantity
Other
Parameter #5
Name
Configuration (HSK) timetags, UTC
ParameterKey
epoch_hsk
Description
Configuration (HSK) timetags, UTC.
Caveats
Configuration timetags. Used for BEB and DFB config values..
Units
UTC
Mixed
MixedQuantity
Other
Parameter #6
Name
EFW BEB Configuration
ParameterKey
vsvy_BEB_config
Description
EFW Boom Electronics Board (BEB) configuration code (sensor biases)
Caveats
Indicates the configuration of the EFW Boom Electronics Board (BEB). Encodes the following information: for each sensor, sensor current bias, usher and guard voltage bias. See TBD_URL for details of mapping between code value and instrument configuration (not crucial for L2 data interpretation).
Mixed
MixedQuantity
Other
Parameter #7
Name
EFW DFB Configuration
ParameterKey
vsvy_DFB_config
Description
EFW Digital Fields Board (DFB) configuration code (on-board spectral and waveform processing configuration)
Caveats
Indicates the configuration of the EFW Digital Filter Board (DFB). Encodes the following information: assignment of analog input channels to the various on-board spectral processors (FBK, SPEC, XSPEC); parameters of the on-board B-field-aligned data processing; nominal or contingency multiplexer programming. See TBD URL for detailed mapping from code value to instrument configuration (not crucial for L2 data interpretation).
Mixed
MixedQuantity
Other
Parameter #8
Name
Time, UTC
ParameterKey
epoch_qual
Description
Timetags for elements of efw_qual.
Caveats
The elements of efw_qual are determined on a fixed cadence regardless of the nominal cadence of the individual L2 data products, and epoch_qual provides storage for those fixed-cadence time tags..
Units
UTC
Mixed
MixedQuantity
Other
Parameter #9
Name
EFW Data Quality Flags
ParameterKey
efw_qual
Description
EFW quality array (global estimate of EFW data quality, plus 13 underlying observatory and instrument-level data quality factors)
Structure
Size
20
Mixed
MixedQuantity
Other
Parameter #10
Name
EFW Quality Flags Components
ParameterKey
efw_qual_compno
Description
Component numbers for EFW data quality flags, efw_qual.
Caveats
none.
Structure
Size
20
Mixed
MixedQuantity
Other
NASA Insignia
Contact SPDF: NASA-SPDF Feedback/Support
Responsible NASA Official: Robert M. Candey
Site Editor: Tami Kovalick
SPDF ROR ID
SPDF re3data ID
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Last Updated: 2022-08-18