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FAST AC Fields, ~5 sec resolution

(2023). FAST AC Fields, ~5 sec resolution [Data set]. NASA Space Physics Data Facility. https://doi.org/10.48322/23b9-6g23. Accessed on .

Note: Proper references, including those in BibTex 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/FAST/ACF/PT5S

Description

FAST AC Fields Key Parameter CDF files consists of AC Electric and Magnetic fields measurements spanning a range from approximately 32 Hz to 2 MHz. The time range of each file is roughly 24 hours and consists of several passes over the auroral zone of approximately 20 minute duration, the time resolution is one spin period (approximately 5s). The orbital period of FAST is 133 minutes.

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Details

Version:2.6.0

NumericalData

ResourceID
spase://NASA/NumericalData/FAST/ACF/PT5S
ResourceHeader
ResourceName
FAST AC Fields, ~5 sec resolution
AlternateName
FA_K0_ACF
DOI
https://doi.org/10.48322/23b9-6g23
ReleaseDate
2023-07-30 12:34:56.789
RevisionHistory
RevisionEvent
ReleaseDate
2021-04-27 15:38:11
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2023-07-30 12:34:56.789
Note
Added DOI and PublicationInfo minted by LFB, metadata versioned up to SPASE 2.6.0, reviewed by LFB 20230727
Description

FAST AC Fields Key Parameter CDF files consists of AC Electric and Magnetic fields measurements spanning a range from approximately 32 Hz to 2 MHz. The time range of each file is roughly 24 hours and consists of several passes over the auroral zone of approximately 20 minute duration, the time resolution is one spin period (approximately 5s). The orbital period of FAST is 133 minutes.

Acknowledgement
Users please acknowledge the Coordinated Data Analysis Web (CDAWeb) at the NASA Goddard Space Flight Center and FAST Principal Investigator Charles Carlson
PublicationInfo
Authors
Carlson, Charles, W.; Strangeway, Robert, J.; Ergun, Robert, E.
PublicationDate
2023-01-01 00:00:00
PublishedBy
NASA Space Physics Data Facility
Contacts
RolePersonStartDateStopDateNote
1.PrincipalInvestigatorspase://SMWG/Person/Charles.W.Carlson
2.GeneralContactspase://SMWG/Person/Robert.J.Strangeway
3.GeneralContactspase://SMWG/Person/Robert.E.Ergun
4.MetadataContactspase://SMWG/Person/Lee.Frost.Bargatze
InformationURL
Name
FAST home page at UC Berkeley
URL
http://sprg.ssl.berkeley.edu/fast/intro.html
Description

The FAST home page maintained at the University of California Berkeley with links to publications, documentation, access to data and software.

Language
en
PriorIDs
spase://VWO/NumericalData/FAST/ACF/FAST_ACFields_PT5S
spase://VWO/NumericalData/FAST/ACF/PT5S
spase://VSPO/NumericalData/FAST/ACF/PT5S
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/fast/acf/k0/
Description

In CDF via FTP from CDAWeb

AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/fast/acf/k0/
Description

In CDF via HTTP from CDAWeb

AccessURL
Name
CDAWeb
URL
https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=FA_K0_ACF&index=sp_phys
ProductKey
FA_K0_ACF
Description

Plots, lists, and data from CDAWeb. The resource name is: FA_K0_ACF

Format
CDF
Encoding
None
Acknowledgement
Users please acknowledge Coordinated Data Analysis Web (CDAWeb) at the NASA Goddard Space Flight Center and and FAST Principal Investigator Charles Carlson.
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
FA_K0_ACF
Description

Web Service to this product using the HAPI interface.

Format
CSV
Acknowledgement
Users please acknowledge Coordinated Data Analysis Web (CDAWeb) at the NASA Goddard Space Flight Center and and FAST Principal Investigator Charles Carlson.
InstrumentIDs
spase://SMWG/Instrument/FAST/EFLP
spase://SMWG/Instrument/FAST/MAG
MeasurementType
Waves.Passive
MeasurementType
Spectrum
MeasurementType
ElectricField
MeasurementType
MagneticField
TemporalDescription
TimeSpan
StartDate
1996-08-30 02:02:17
StopDate
2002-10-25 00:11:32
Cadence
PT5S
SpectralRange
RadioFrequency
ObservedRegion
Earth.Magnetosphere
ObservedRegion
Earth.NearSurface.Plasmasphere
ObservedRegion
Earth.NearSurface.AuroralRegion
ObservedRegion
Earth.NearSurface.PolarCap
Keywords
Dynamic Spectrogram
Spectrogram
AKR
Auroral Kilometric Radiation
ELF
Solitary Waves
Terrestrial Kilometric Radiation
TKR
VLF Saucers
Parameter #1
Name
Time
ParameterKey
Epoch
Description

Time

Units
ms
RenderingHints
AxisLabel
Epoch
FillValue
-1.0e+31
Support
SupportQuantity
Temporal
Parameter #2
Name
Time (PB5)
ParameterKey
Time_PB5
Description

Time, in NSSDC Time_PB5 format: Units of year, day of year, msec of day

ValidMin
1992, 1, 0
ValidMax
2020, 366, 86399999
Support
SupportQuantity
Temporal
Parameter #3
Name
Data quality flag
ParameterKey
quality_flag
Description

Data quality flag (0:good, 255:bad or missing

Units
(0=good,255=bad or missing)
ValidMin
0
ValidMax
255
Support
SupportQuantity
Other
Parameter #4
Name
Post gap flag
ParameterKey
post_gap_flag
Description

Post gap flag (0:no gap, 1:gap)

Support
SupportQuantity
Other
Parameter #5
Name
Time (secs since 1970-01-01)
ParameterKey
unix_time
Description

Time in seconds since 1970-01-01/00:00:00.0 UT

Units
s
Support
SupportQuantity
Temporal
Parameter #6
Name
HF_E_SPEC Frequencies
ParameterKey
HF_E_FREQ
Description

59 frequencies for HF_E_SPEC, range: 37.54 - 1974 kHz

Units
kHz
Support
SupportQuantity
Other
Parameter #7
Name
HF Electric PSD (0-2 MHz)
ParameterKey
HF_E_SPEC
Description

Electric field power spectral density (0-2 MHz), in 59 frequency bins of width 32 kHz

Units
log10((V/m)**2/Hz)
ValidMin
-18.0
ValidMax
-4.0
FillValue
-1.0e+31
Wave
WaveType
PlasmaWaves
WaveQuantity
ACElectricField
FrequencyRange
SpectralRange
RadioFrequency
Low
37.54
High
1974
Units
kHz
Parameter #8
Name
VLF_E_SPEC Frequencies
ParameterKey
VLF_E_FREQ
Description

56 frequencies for VLF_E_SPEC variable, range 2.176 to 16.26 kHz

Units
kHz
ValidMin
0.0
ValidMax
16.4
Support
SupportQuantity
Other
Parameter #9
Name
VLF Electric PSD (0-16 kHz)
ParameterKey
VLF_E_SPEC
Description

Electric field power spectral density (0-16 kHz), in 56 frequency bins

Units
log10((V/m)**2/Hz)
ValidMin
-15.0
ValidMax
-3.0
Wave
WaveType
PlasmaWaves
WaveQuantity
ACElectricField
FrequencyRange
SpectralRange
RadioFrequency
Low
2.176
High
16.26
Units
kHz
Parameter #10
Name
ELF_E_SPEC Frequencies
ParameterKey
ELF_E_FREQ
Description

62 frequencies for ELF_E_SPEC variable, range 0.032 to 1.984 kHz

Units
kHz
Support
SupportQuantity
Other
Parameter #11
Name
ELF Electric PSD (0-2 kHz)
ParameterKey
ELF_E_SPEC
Description

Electric field power spectral density (0-2 kHz), in 62 frequency bins

Units
log10((V/m)**2/Hz)
Wave
WaveType
PlasmaWaves
WaveQuantity
ACElectricField
FrequencyRange
SpectralRange
RadioFrequency
Low
0.032
High
1.984
Units
kHz
Parameter #12
Name
HF_B_SPEC Frequencies
ParameterKey
HF_B_FREQ
Description

59 frequencies for HF_B_SPEC, range: 37.54 - 1974 kHz

Units
kHz
Support
SupportQuantity
Other
Parameter #13
Name
HF Magnetic PSD (0-2 MHz)
ParameterKey
HF_B_SPEC
Description

Magnetic field power spectral density (0-2 MHz), in 59 frequency bins of width 32 kHz

Units
log10(nT**2/Hz)
ValidMin
-13.0
ValidMax
0.0
FillValue
-1.0e+31
Wave
WaveType
PlasmaWaves
WaveQuantity
ACMagneticField
FrequencyRange
SpectralRange
RadioFrequency
Low
37.54
High
1974
Units
kHz
Parameter #14
Name
VLF_B_SPEC Frequencies
ParameterKey
VLF_B_FREQ
Description

56 frequencies for VLF_B_SPEC variable, range 2.176 to 16.26 kHz

Units
kHz
ValidMin
0.0
ValidMax
16.4
Support
SupportQuantity
Other
Parameter #15
Name
VLF B PSD (0-16 kHz)
ParameterKey
VLF_B_SPEC
Description

Magnetic field power spectral density (0-16 kHz), in 56 frequency bins

Units
log10(nT**2/Hz)
ValidMin
-21.0
ValidMax
-8.0
Wave
WaveType
PlasmaWaves
WaveQuantity
ACMagneticField
FrequencyRange
SpectralRange
RadioFrequency
Low
2.176
High
16.26
Units
kHz
Parameter #16
Name
ELF_B_SPEC Frequencies
ParameterKey
ELF_B_FREQ
Description

62 frequencies for ELF_B_SPEC variable, range 0.032 to 1.984 kHz

Units
kHz
Support
SupportQuantity
Other
Parameter #17
Name
ELF Magnetic PSD (0-2 kHz)
ParameterKey
ELF_B_SPEC
Description

Magnetic field power spectral density (0-2 kHz), in 62 frequency bins

Units
log10(nT**2/Hz)
Wave
WaveType
PlasmaWaves
WaveQuantity
ACMagneticField
FrequencyRange
SpectralRange
RadioFrequency
Low
0.032
High
1.984
Units
kHz
Parameter #18
Name
HF E and B Power (0-2 MHz)
ParameterKey
HF_PWR
Description

array containing HF Electric Power and HF Magnetic Power (0-2 MHz)

Structure
Size
2
Element
Name
HF Electric Power
Index
1
ParameterKey
HF E PWR
Units
(V/m)**2
ValidMin
1.0e-14
ValidMax
1.0e-05
FillValue
-1.0e+31
Field
FieldQuantity
Electric
Parameter #19
Name
HF E and B Power (0-2 MHz)
ParameterKey
HF_PWR
Description

array containing HF Electric Power and HF Magnetic Power (0-2 MHz)

Structure
Size
2
Element
Name
HF Magnetic Power
Index
2
ParameterKey
HF B PWR
Units
nT**2
ValidMin
1.0e-12
ValidMax
0.001
FillValue
-1.0e+31
Field
FieldQuantity
Magnetic
Parameter #20
Name
VLF E and B Power (0-16 kHz)
ParameterKey
VLF_PWR
Description

array containing VLF Electric Power and VLF Magnetic Power (0-16 kHz)

Structure
Size
2
Element
Name
VLF Electric Power
Index
1
ParameterKey
VLF E PWR
Units
(V/m)**2
ValidMin
1.0e-17
ValidMax
1.0e+07
FillValue
-1.0e+31
Field
FieldQuantity
Electric
Parameter #21
Name
VLF E and B Power (0-16 kHz)
ParameterKey
VLF_PWR
Description

array containing VLF Electric Power and VLF Magnetic Power (0-16 kHz)

Structure
Size
2
Element
Name
VLF Magnetic Power
Index
2
ParameterKey
VLF B PWR
Units
nT**2
ValidMin
1.0e-15
ValidMax
1.0e+09
FillValue
-1.0e+31
Field
FieldQuantity
Magnetic
Parameter #22
Name
ELF E and B Power (0-2 kHz)
ParameterKey
ELF_PWR
Description

array containing ELF Electric Power and ELF Magnetic Power (0-2 kHz)

Structure
Size
2
Element
Name
ELF Electric Power
Index
1
ParameterKey
ELF E PWR
Units
(V/m)**2
ValidMin
1.0e-12
ValidMax
100.0
FillValue
-1.0e+31
Field
FieldQuantity
Electric
Parameter #23
Name
ELF E and B Power (0-2 kHz)
ParameterKey
ELF_PWR
Description

array containing ELF Electric Power and ELF Magnetic Power (0-2 kHz)

Structure
Size
2
Element
Name
ELF Magnetic Power
Index
2
ParameterKey
ELF B PWR
Units
nT**2
ValidMin
1.0e-10
ValidMax
10000.0
FillValue
-1.0e+31
Field
FieldQuantity
Magnetic
Parameter #24
Name
FAST orbit number
ParameterKey
orbit
Description

FAST orbit number--normally increments by one for each successive orbit

ValidMin
0
ValidMax
100000
FillValue
-2147483648
Support
SupportQuantity
Other
Parameter #25
Name
Right Ascension of Spin Axis
ParameterKey
fa_spin_ra
Description

Right Ascension of Spin Axis, degrees, GEI coords

Units
deg
ValidMin
0.0
ValidMax
360.0
FillValue
-1.0e+31
Support
SupportQuantity
Positional
Parameter #26
Name
Declination of Spin Axis
ParameterKey
fa_spin_dec
Description

Declination of Spin Axis, degrees, GEI coords

Units
deg
ValidMin
-90.0
ValidMax
90.0
FillValue
-1.0e+31
Support
SupportQuantity
Positional
Parameter #27
Name
FAST Spacecraft Position
ParameterKey
r
Description

FAST Spacecraft position, cartesian 3 vector, GEI coords, km

Units
km
Structure
Size
3
Element
Name
x GEI
Index
1
ParameterKey
x_GEI
Units
km
ValidMin
-12000.0
ValidMax
12000.0
FillValue
-1.0e+31
Element
Name
y GEI
Index
2
ParameterKey
y_GEI
Units
km
ValidMin
-12000.0
ValidMax
12000.0
FillValue
-1.0e+31
Element
Name
z GEI
Index
3
ParameterKey
z_GEI
Units
km
ValidMin
-12000.0
ValidMax
12000.0
FillValue
-1.0e+31
Support
SupportQuantity
Positional
Parameter #28
Name
FAST Spacecraft Velocity
ParameterKey
v
Description

FAST Spacecraft velocity, cartesian 3 vector, GEI coords, km/s

Units
km/s
Structure
Size
3
Element
Name
Vx GEI
Index
1
ParameterKey
Vx_GEI
Units
km/s
ValidMin
-12.0
ValidMax
12.0
FillValue
-1.0e+31
Element
Name
Vy GEI
Index
2
ParameterKey
Vy_GEI
Units
km/s
ValidMin
-12.0
ValidMax
12.0
FillValue
-1.0e+31
Element
Name
Vz GEI
Index
3
ParameterKey
Vz_GEI
Units
km/s
ValidMin
-12.0
ValidMax
12.0
FillValue
-1.0e+31
Support
SupportQuantity
Velocity
Parameter #29
Name
Spacecraft Altitude
ParameterKey
alt
Description

Spacecraft altitude above an equatorial earth radius of 6378.14 km, km

Units
km
ValidMin
0.0
ValidMax
5000.0
FillValue
-1.0e+31
Support
SupportQuantity
Positional
Parameter #30
Name
Footprint Latitude
ParameterKey
flat
Description

Geodetic latitude of magnetic footprint at 100 km above the oblate earth, deg

Units
deg
ValidMin
-90.0
ValidMax
90.0
FillValue
-1.0e+31
Support
SupportQuantity
Positional
Parameter #31
Name
Footprint Longitude
ParameterKey
flng
Description

Geodetic longitude of magnetic footprint at 100 km above the oblate earth, deg

Units
deg
ValidMin
-180.0
ValidMax
180.0
FillValue
-1.0e+31
Support
SupportQuantity
Positional
Parameter #32
Name
Magnetic Local Time
ParameterKey
mlt
Description

Magnetic Local Time, hours

Units
hour
ValidMin
0.0
ValidMax
24.0
FillValue
-1.0e+31
Support
SupportQuantity
Positional
Parameter #33
Name
Invariant Latitude
ParameterKey
ilat
Description

Invariant Latitude, degrees

Units
deg
ValidMin
-90.0
ValidMax
90.0
FillValue
-1.0e+31
Support
SupportQuantity
Positional