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STEREO-A SWAVES One minute averages of the low (lfr) frequency receiver data.

(2025). STEREO-A SWAVES One minute averages of the low (lfr) frequency receiver data. [Data set]. Space Physics Data Facility.

ResourceID
spase://NASA/NumericalData/STEREO-A/SWAVES/average_lfr/PT60S

Description

The two STEREO radio receivers measure wave intensity, source direction and angular size in the frequency
range 40 kHz to 16 MHz, corresponding to heliocentric source distances of about 1 Rs to 1 AU. One 10-40 kHz
receiver measures radio and plasma waves near the 1 AU electron plasma frequency. One receiver makes high
time resolution measurements at 50 MHz. Time Domain Samplers make simultaneous wideband waveform measurements
on three electric components. Antenna systems include three mutually orthogonal 6-meter monopoles.

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Details

Version:2.7.1

MetadataRightsList

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 SPASE metadata descriptions

Version:2.7.1

NumericalData

ResourceID
spase://NASA/NumericalData/STEREO-A/SWAVES/average_lfr/PT60S
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
STEREO-A SWAVES One minute averages of the low (lfr) frequency receiver data.
ReleaseDate
2025-12-04 13:31:36Z
RevisionHistory
RevisionEvent
ReleaseDate
2021-04-04 00:00:00Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2025-11-14 16:02:55Z
Note
Added PublicationInfo. 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 13:31:36Z
Note
Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB
Description

The two STEREO radio receivers measure wave intensity, source direction and angular size in the frequency
range 40 kHz to 16 MHz, corresponding to heliocentric source distances of about 1 Rs to 1 AU. One 10-40 kHz
receiver measures radio and plasma waves near the 1 AU electron plasma frequency. One receiver makes high
time resolution measurements at 50 MHz. Time Domain Samplers make simultaneous wideband waveform measurements
on three electric components. Antenna systems include three mutually orthogonal 6-meter monopoles.

Acknowledgement
National Aeronautics and Space Administration; Dr. Jean-Louis Henry Bougeret
PublicationInfo
Authors
Bougeret, Jean-Louis H.
PublicationDate
2025-11-14 16:02:55Z
PublishedBy
Space Physics Data Facility
Contacts
RolePersonStartDateStopDateNote
1.PrincipalInvestigatorspase://SMWG/Person/Jean-Louis.Henry.Bougeret
2.MetadataContactspase://SMWG/Person/James.M.Weygand
InformationURL
Name
SWAVES Resources page
URL
https://stereo-ssc.nascom.nasa.gov/ins_resources/swaves_resources.shtml
Description

NASA STEREO SWAVE resources information.

InformationURL
Name
NASA Master Catalog SWAVES Instrument page
URL
https://nssdc.gsfc.nasa.gov/nmc/experiment/display.action?id=2006-047A-02
Description

NASA STEREO SWAVE instrument information.

InformationURL
Name
STREREO SWAVES homepage
URL
https://swaves.gsfc.nasa.gov/
Description

WAVES Experiment on the STEREO Mission.

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/stereo/ahead/swaves/average_lfr_ascii/
Description

FTPS access to SWAVES ASCII data

AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/stereo/ahead/swaves/average_lfr_ascii/
Description

HTTPS access to SWAVES ASCII data

Format
Text.ASCII
Acknowledgement
Space Physics Data Facility of the NASA Goddard Space Flight Center; Robert E McGuire
ProcessingLevel
Calibrated
ProviderName
STEREO-A
ProviderResourceName
STEREO-A SWAVES
ProviderProcessingLevel
Level 2
InstrumentIDs
spase://SMWG/Instrument/STEREO-A/SWAVES
MeasurementType
Waves
TemporalDescription
TimeSpan
StartDate
2006-10-27 00:00:00
RelativeStopDate
-P2D
Cadence
PT60S
ObservedRegion
Heliosphere.Remote1AU
Keywords
low frequency receiver
STEREO-A
SWAVES
Parameter #1
Name
Low Frequency Data
Description

High frequency data in 48 channels.

Caveats
This is the first 48 values in the daily file. Missing data is indicated by a value less than 0.
Cadence
PT60S
Units
kHz
Structure
Size
1 48
Description

This is the first 48 values in the daily file.

Wave
WaveType
Electromagnetic
Qualifier
Average
WaveQuantity
Frequency
FrequencyRange
Low
2.6
High
153.4
Units
kHz
Parameter #2
Name
Background Value
Description

The 48 background value used in (currently) arbitrary decibel (dB) units.

Caveats
This is the second 48 values in the daily file. Missing data is indicated by a value less than 0.
Cadence
PT60S
Units
dB
Structure
Size
1 48
Description

The 48 background value used in (currently) arbitrary decibel (dB) units.

Wave
WaveType
Electromagnetic
WaveQuantity
Intensity
FrequencyRange
Low
2.6
High
153.4
Units
kHz
Parameter #3
Name
Average Intensity
Description

The 2-dimensional (# of frequencies X 1440 minutes per day) array of averages in dB above the average (i.e. value-average in dB). Missing data is indicated by a value less than 0.

Caveats
This is the next 1440 by 320 values in the daily file. Missing data is indicated by a value less than 0.
Cadence
PT60S
Structure
Size
1 49
Description

This is the next 1440 by 320 values in the daily file.

Element
Name
Minute of the day
Qualifier
Average
Index
1
Units
minutes
ValidMin
0
ValidMax
1439
Element
Name
49 values of Average Intensity
Qualifier
Array
Index
2
Units
dB
ValidMin
0
Wave
WaveType
Electromagnetic
WaveQuantity
Intensity
FrequencyRange
Low
2.6
High
153.4
Units
kHz