Version:2.4.1
NumericalData
ResourceID
spase://NASA/NumericalData/RBSP/B/EFW/L2/SPEC/PT4S
ResourceHeader
ResourceName
Van Allen Probe B Spectrogram Data
DOI
https://doi.org/10.48322/hdnm-mh60
ReleaseDate
2022-08-18 12:34:56.789
RevisionHistory
RevisionEvent
ReleaseDate
2022-05-25 12:34:56.789
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 Level 2 wave electric field and search coil wave magnetic fields spectral data from the Electric Field and Waves Suite (EFW) onboard Van Allen Probe B. Spectrograms between ~40 Hz and ~8 kHz are calculated on-board the EFW instrument every 4 seconds. These data include one component of the ac-coupled electric field from the rotating V12 sensors (V12ac). The electric field quantity is labeled EFW/L2. Also included are two components of the wave magnetic field from the University of Iowa EMFISIS sensors. The search coil quantities are labeled EFW/L2 spec64 smu. In the labels "smu" and "smv", the suffixes "u" and "v" refer to the u and v sensor coordinates rotating with the spacecraft. All these quantities, the nature of the on board signal processing, their filtering, time resolution and their respective coordinate systems are described in the EFW instrument paper (Wygant et al. 2013). When the spectral CDF is opened, many other possible quantities are listed which have no data in them. Possible sources include: * E12dc * E34dc * E56dc * E12ac * E34ac * E56ac * E DC parallel * E DC perpendicular 1 * E DC perpendicular 2 * E AC parallel * E AC perpendicular 1 * E AC perpendicular 2 * V1+V2+V3+V4/4AC * SCMu * SCMv * SCMw * SCM parallel * SCM perpendicular 1 * SCM perpendicular 2 Those without data are "place holder quantities" which are used by other instrument modes not currently selected. Examples of the spectral data may be found in Principal Investigator's on-line survey data plots. EMFISIS instrument wave data may be found on the University of Iowa website. This includes valuable spectral electric field data up to 400 kHz and magnetic field data up to about ~6 kHz.
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
InformationURL
Name
EFW home page at the University of Minnesota
URL
Description
EFW Data Required Reading
InformationURL
Name
The Van Allen Probes Home Page
URL
Description
Science Gateway (including Mission Rules of the Road for Data Usage)
PriorIDs
spase://VSPO/NumericalData/RBSP/B/EFW/L2_SPEC/PT4S
spase://ViRBO/NumericalData/RBSP/B/EFW/L2/SPEC/UTC
spase://VSPO/NumericalData/RBSP/B/EFW/L2/SPEC/PT4S
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
FTPS from SPDF (not with most browsers)
URL
Description
In CDF via ftp from CDAWeb
AccessURL
Name
HTTPS from SPDF
URL
Description
In CDF via HTTP from SPDF
Format
CDF
Acknowledgement
Please acknowledge the PI and the CDAWeb team at GSFC/SPDF.
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
CDAWeb
URL
ProductKey
RBSPB_EFW-L2_SPEC
Format
Text
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
CDAWeb HAPI Server
URL
Style
HAPI
ProductKey
RBSPB_EFW-L2_SPEC@0
ProductKey
RBSPB_EFW-L2_SPEC@1
Description
Web Service to this product using the HAPI interface.
Format
CSV
InstrumentIDs
MeasurementType
ElectricField
MeasurementType
Waves
MeasurementType
Spectrum
TemporalDescription
TimeSpan
StartDate
2012-09-05 23:21:36.000Z
StopDate
2019-10-18 16:30:00Z
Parameter #1
Name
spec64_fcenter
ParameterKey
spec64_fcenter
Description
Caveats
Center frequency for the SPEC 64 bins
Units
Hz
Structure
Mixed
Parameter #2
Name
spec32_fcenter
ParameterKey
spec36_fcenter
Description
Caveats
Center frequency for the SPEC 36 bins
Units
Hz
Structure
Mixed
Parameter #3
Name
spec112_fcenter
ParameterKey
spec112_fcenter
Description
Caveats
Center frequency for the SPEC 112 bins
Units
Hz
Structure
Mixed
Parameter #4
Name
spec64_compno
ParameterKey
spec64_compno
Description
Structure
Mixed
Parameter #5
Name
spec36_compno
ParameterKey
spec36_compno
Description
Structure
Mixed
Parameter #6
Name
spec112_compno
ParameterKey
spec112_compno
Description
Structure
Mixed
Parameter #7
Name
Time, UTC
ParameterKey
epoch
Description
Caveats
Time tags for the survey quantities
Units
ps
Mixed
Parameter #8
Name
spec64_e12dc
ParameterKey
spec64_e12dc
Description
Caveats
64 bin spectrogram for E12DC
Structure
Mixed
Parameter #9
Name
spec64_e12ac
ParameterKey
spec64_e12ac
Description
Caveats
64 bin spectrogram for E12AC
Structure
Mixed
Parameter #10
Name
spec64_e34dc
ParameterKey
spec64_e34dc
Description
Caveats
64 bin spectrogram for E34DC
Structure
Mixed
Parameter #11
Name
spec64_e34ac
ParameterKey
spec64_e34ac
Description
Caveats
64 bin spectrogram for E34AC
Structure
Mixed
Parameter #12
Name
spec64_e56dc
ParameterKey
spec64_e56dc
Description
Caveats
64 bin spectrogram for E56DC
Structure
Mixed
Parameter #13
Name
spec64_e56ac
ParameterKey
spec64_e56ac
Description
Caveats
64 bin spectrogram for E56AC
Structure
Mixed
Parameter #14
Name
spec64_epar_dc
ParameterKey
spec64_epardc
Description
[64 FREQUENCIES] E-parallel DC
Caveats
64 bin spectrogram for Eparallel DC
Structure
Mixed
Parameter #15
Name
spec64_eperp1dc
ParameterKey
spec64_eperp1dc
Description
Caveats
64 bin spectrogram for Eperp1 DC
Structure
Mixed
Parameter #16
Name
spec64_eparac
ParameterKey
spec64_eparac
Description
Caveats
64 bin spectrogram for Eparallel AC
Structure
Mixed
Parameter #17
Name
spec64_eperp1ac
ParameterKey
spec64_eperp1ac
Description
Caveats
64 bin spectrogram for Eperp1 AC
Structure
Mixed
Parameter #18
Name
spec64_eperp2dc
ParameterKey
spec64_eperp2dc
Description
Caveats
64 bin spectrogram for Eperp2 DC
Structure
Mixed
Parameter #19
Name
spec64_eperp2ac
ParameterKey
spec64_eperp2ac
Description
Caveats
64 bin spectrogram for Eperp2 AC
Structure
Mixed
Parameter #20
Name
spec64_v1ac
ParameterKey
spec64_v1ac
Description
Caveats
64 bin spectrogram for V1AC
Structure
Mixed
Parameter #21
Name
spec64_v2ac
ParameterKey
spec64_v2ac
Description
Caveats
64 bin spectrogram for V2AC
Structure
Mixed
Parameter #22
Name
spec64_v3ac
ParameterKey
spec64_v3ac
Description
Caveats
64 bin spectrogram for V3AC
Structure
Mixed
Parameter #23
Name
spec64_v4ac
ParameterKey
spec64_v4ac
Description
Caveats
64 bin spectrogram for V4AC
Structure
Mixed
Parameter #24
Name
spec64_v5ac
ParameterKey
spec64_v5ac
Description
Caveats
64 bin spectrogram for V5AC
Structure
Mixed
Parameter #25
Name
spec64_v6ac
ParameterKey
spec64_v6ac
Description
Caveats
64 bin spectrogram for V6AC
Structure
Mixed
Parameter #26
Name
spec64_v1234_avg
ParameterKey
spec64_v1234_avg
Description
Caveats
64 bin spectrogram for (v1+v2+v3+v4)/4
Structure
Mixed
Parameter #27
Name
spec64_scmu
ParameterKey
spec64_scmu
Description
Caveats
64 bin spectrogram for SCMu
Structure
Mixed
Parameter #28
Name
spec64_scmv
ParameterKey
spec64_scmv
Description
Caveats
64 bin spectrogram for SCMv
Structure
Mixed
Parameter #29
Name
spec64_scmw
ParameterKey
spec64_scmw
Description
Caveats
64 bin spectrogram for SCMw
Structure
Mixed
Parameter #30
Name
spec64_scmpar
ParameterKey
spec64_scmpar
Description
Caveats
64 bin spectrogram for SCMpar
Structure
Mixed
Parameter #31
Name
spec64_scmperp1
ParameterKey
spec64_scmperp1
Description
Caveats
64 bin spectrogram for SCMperp1
Structure
Mixed
Parameter #32
Name
spec64_scmperp2
ParameterKey
spec64_scmperp2
Description
Caveats
64 bin spectrogram for SCMperp2
Structure
Mixed
Parameter #33
Name
spec36_e12dc
ParameterKey
spec36_e12dc
Description
Caveats
36 bin spectrogram for E12DC
Structure
Mixed
Parameter #34
Name
spec36_e12ac
ParameterKey
spec36_e12ac
Description
Caveats
36 bin spectrogram for E12AC
Structure
Mixed
Parameter #35
Name
spec36_e34dc
ParameterKey
spec36_e34dc
Description
Caveats
36 bin spectrogram for E34DC
Structure
Mixed
Parameter #36
Name
spec36_e34ac
ParameterKey
spec36_e34ac
Description
Caveats
36 bin spectrogram for E34AC
Structure
Mixed
Parameter #37
Name
spec36_e56dc
ParameterKey
spec36_e56dc
Description
Caveats
36 bin spectrogram for E56DC
Structure
Mixed
Parameter #38
Name
spec36_e56ac
ParameterKey
spec36_e56ac
Description
Caveats
36 bin spectrogram for E56AC
Structure
Mixed
Parameter #39
Name
spec36_epar_dc
ParameterKey
spec36_epardc
Description
[36 FREQUENCIES] E-parallel DC
Caveats
36 bin spectrogram for Eparallel DC
Structure
Mixed
Parameter #40
Name
spec36_eperp1dc
ParameterKey
spec36_eperp1dc
Description
Caveats
36 bin spectrogram for Eperp1 DC
Structure
Mixed
Parameter #41
Name
spec36_eparac
ParameterKey
spec36_eparac
Description
Caveats
36 bin spectrogram for Eparallel AC
Structure
Mixed
Parameter #42
Name
spec36_eperp1ac
ParameterKey
spec36_eperp1ac
Description
Caveats
36 bin spectrogram for Eperp1 AC
Structure
Mixed
Parameter #43
Name
spec36_eperp2dc
ParameterKey
spec36_eperp2dc
Description
Caveats
36 bin spectrogram for Eperp2 DC
Structure
Mixed
Parameter #44
Name
spec36_eperp2ac
ParameterKey
spec36_eperp2ac
Description
Caveats
36 bin spectrogram for Eperp2 AC
Structure
Mixed
Parameter #45
Name
spec36_v1ac
ParameterKey
spec36_v1ac
Description
Caveats
36 bin spectrogram for V1AC
Structure
Mixed
Parameter #46
Name
spec36_v2ac
ParameterKey
spec36_v2ac
Description
Caveats
36 bin spectrogram for V2AC
Structure
Mixed
Parameter #47
Name
spec36_v3ac
ParameterKey
spec36_v3ac
Description
Caveats
36 bin spectrogram for V3AC
Structure
Mixed
Parameter #48
Name
spec36_v4ac
ParameterKey
spec36_v4ac
Description
Caveats
36 bin spectrogram for V4AC
Structure
Mixed
Parameter #49
Name
spec36_v5ac
ParameterKey
spec36_v5ac
Description
Caveats
36 bin spectrogram for V5AC
Structure
Mixed
Parameter #50
Name
spec36_v6ac
ParameterKey
spec36_v6ac
Description
Caveats
36 bin spectrogram for V6AC
Structure
Mixed
Parameter #51
Name
spec36_v1234_avg
ParameterKey
spec36_v1234_avg
Description
Caveats
36 bin spectrogram for (v1+v2+v3+v4)/4
Structure
Mixed
Parameter #52
Name
spec36_scmu
ParameterKey
spec36_scmu
Description
Caveats
36 bin spectrogram for SCMu
Structure
Mixed
Parameter #53
Name
spec36_scmv
ParameterKey
spec36_scmv
Description
Caveats
36 bin spectrogram for SCMv
Structure
Mixed
Parameter #54
Name
spec36_scmw
ParameterKey
spec36_scmw
Description
Caveats
36 bin spectrogram for SCMw
Structure
Mixed
Parameter #55
Name
spec36_scmpar
ParameterKey
spec36_scmpar
Description
Caveats
36 bin spectrogram for SCMpar
Structure
Mixed
Parameter #56
Name
spec36_scmperp1
ParameterKey
spec36_scmperp1
Description
Caveats
36 bin spectrogram for SCMperp1
Structure
Mixed
Parameter #57
Name
spec36_scmperp2
ParameterKey
spec36_scmperp2
Description
Caveats
36 bin spectrogram for SCMperp2
Structure
Mixed
Parameter #58
Name
spec112_e12dc
ParameterKey
spec112_e12dc
Description
Caveats
112 bin spectrogram for E12DC
Structure
Mixed
Parameter #59
Name
spec112_e12ac
ParameterKey
spec112_e12ac
Description
Caveats
112 bin spectrogram for E12AC
Structure
Mixed
Parameter #60
Name
spec112_e34dc
ParameterKey
spec112_e34dc
Description
Caveats
112 bin spectrogram for E34DC
Structure
Mixed
Parameter #61
Name
spec112_e34ac
ParameterKey
spec112_e34ac
Description
Caveats
112 bin spectrogram for E34AC
Structure
Mixed
Parameter #62
Name
spec112_e56dc
ParameterKey
spec112_e56dc
Description
Caveats
112 bin spectrogram for E56DC
Structure
Mixed
Parameter #63
Name
spec112_e56ac
ParameterKey
spec112_e56ac
Description
Caveats
112 bin spectrogram for E56AC
Structure
Mixed
Parameter #64
Name
spec112_epar_dc
ParameterKey
spec112_epardc
Description
[112 FREQUENCIES] E-parallel DC
Caveats
112 bin spectrogram for Eparallel DC
Structure
Mixed
Parameter #65
Name
spec112_eperp1dc
ParameterKey
spec112_eperp1dc
Description
Caveats
112 bin spectrogram for Eperp1 DC
Structure
Mixed
Parameter #66
Name
spec112_eparac
ParameterKey
spec112_eparac
Description
Caveats
112 bin spectrogram for Eparallel AC
Structure
Mixed
Parameter #67
Name
spec112_eperp1ac
ParameterKey
spec112_eperp1ac
Description
Caveats
112 bin spectrogram for Eperp1 AC
Structure
Mixed
Parameter #68
Name
spec112_eperp2dc
ParameterKey
spec112_eperp2dc
Description
Caveats
112 bin spectrogram for Eperp2 DC
Structure
Mixed
Parameter #69
Name
spec112_eperp2ac
ParameterKey
spec112_eperp2ac
Description
Caveats
112 bin spectrogram for Eperp2 AC
Structure
Mixed
Parameter #70
Name
spec112_v1ac
ParameterKey
spec112_v1ac
Description
Caveats
112 bin spectrogram for V1AC
Structure
Mixed
Parameter #71
Name
spec112_v2ac
ParameterKey
spec112_v2ac
Description
Caveats
112 bin spectrogram for V2AC
Structure
Mixed
Parameter #72
Name
spec112_v3ac
ParameterKey
spec112_v3ac
Description
Caveats
112 bin spectrogram for V3AC
Structure
Mixed
Parameter #73
Name
spec112_v4ac
ParameterKey
spec112_v4ac
Description
Caveats
112 bin spectrogram for V4AC
Structure
Mixed
Parameter #74
Name
spec112_v5ac
ParameterKey
spec112_v5ac
Description
Caveats
112 bin spectrogram for V5AC
Structure
Mixed
Parameter #75
Name
spec112_v6ac
ParameterKey
spec112_v6ac
Description
Caveats
112 bin spectrogram for V6AC
Structure
Mixed
Parameter #76
Name
spec112_v1234_avg
ParameterKey
spec112_v1234_avg
Description
Caveats
112 bin spectrogram for (v1+v2+v3+v4)/4
Structure
Mixed
Parameter #77
Name
spec112_scmu
ParameterKey
spec112_scmu
Description
Caveats
112 bin spectrogram for SCMu
Structure
Mixed
Parameter #78
Name
spec112_scmv
ParameterKey
spec112_scmv
Description
Caveats
112 bin spectrogram for SCMv
Structure
Mixed
Parameter #79
Name
spec112_scmw
ParameterKey
spec112_scmw
Description
Caveats
112 bin spectrogram for SCMw
Structure
Mixed
Parameter #80
Name
spec112_scmpar
ParameterKey
spec112_scmpar
Description
Caveats
112 bin spectrogram for SCMpar
Structure
Mixed
Parameter #81
Name
spec112_scmperp1
ParameterKey
spec112_scmperp1
Description
Caveats
112 bin spectrogram for SCMperp1
Structure
Mixed
Parameter #82
Name
spec112_scmperp2
ParameterKey
spec112_scmperp2
Description
Caveats
112 bin spectrogram for SCMperp2
Structure
Mixed
Parameter #83
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
ps
Mixed
Parameter #84
Name
EFW Data Quality Flags
ParameterKey
efw_qual
Description
An array that indicates a global estimate of EFW data quality, as well as a breakdown of observatory and instrument-level data quality issues that impact the global quality estimate..
Caveats
The quality of EFW data products can be affected by a variety of observatory and instrument-level conditions. efw_qual is a collection of flags that show the estimate of each of these contributors over time. ..See the EFW-FAQ (http://rbsp.space.umn.edu/efw_faq.html) for a detailed description of the determination and meaning of each of the elements of efw_qual. If the value of a particular element of efw_qual is not relevant to the quality of a particular data product, it shall receive the value EFW_QUAL_NR (typ. -2). If the value of a particular element of efw_qual is relevant to the quality of a particular data product but is not known at the time lf L2 data production, it shall receive the value EFW_QUAL_UNK (typ. -1). A quality value of EFW_QUAL_GOOD (typ. 0) indicates that there are no known issues with the data product due to that particular element of efw_qual. The quality values are meant to be conservative, and values other than EFW_QUAL_GOOD should lead the user back to a member of the EFW instrument team for discussion and advice on the nature of the data quality as needed.
Structure
Mixed
Parameter #85
Name
EFW Quality Flags Components
ParameterKey
epoch_qual_compno
Description
Component numbers for EFW data quality flags, efw_qual.
Caveats
none.
Structure
Mixed