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

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:2.3.1

NumericalData

ResourceID
spase://NASA/NumericalData/STEREO-A/SWAVES/average_lfr/PT60S
ResourceHeader
ResourceName
STEREO-A SWAVES One minute averages of the low (lfr) frequency receiver data.
ReleaseDate
2021-04-04 00:00:00Z
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
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
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