THEMIS-D: Solid State Telescope (SST): Energy flux spectrogram, electron/ion ground-calculated fluxes (30 keV - 300 keV).

(2023). THEMIS-D: Solid State Telescope (SST): Energy flux spectrogram, electron/ion ground-calculated fluxes (30 keV - 300 keV). [Data set]. NASA Space Physics Data Facility. https://doi.org/10.48322/7fcg-ej20. 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/THEMIS/D/SST/PT3S

Description

THEMIS-D: The Solid State Telescope (SST) measures the incoming intensity (flux per solid angle) of superthermal electrons and ions. The spacecraft is fitted with two units (heads), each SST unit has two pairs of opposing ion and electron sensors. Each single sensor covers an angle of 36 degrees. The units are oriented such that one pair is always centered in the rotation plane, the other oriented at a maximum angle of 54 degrees off the plane. Each pair of units are oriented opposite each other allowing both ion and electron sensors to sweep out a maximum of 92% of the sky (45x45 degree required Elevation by Azimuth FOV, 108x22 raw) . The ion and electron sensors primarily measure particles between 30-300 keV and 30-100 keV respectively with a maximum capability of 20-6000 keV and 25-1000 keV. Full distribution data is measured over 128 angles and 16 energy bins, reduced distribution uses 6 angles and 16 energy bins, and burst mode data has 64 angles in 16 energy bins. Matched and paired electron broom magnets produce quadrapole fields reducing magnetic contamination. A mechanical attenuator is used to increase the instruments dynamical range avoiding oversaturation near the plasma sheet edge.

View XML | View JSON | Edit

Details

Version:2.6.0

NumericalData

ResourceID

spase://NASA/NumericalData/THEMIS/D/SST/PT3S

ResourceHeader

ResourceName

THEMIS-D: Solid State Telescope (SST): Energy flux spectrogram, electron/ion ground-calculated fluxes (30 keV - 300 keV).

AlternateName

THEMIS-D SST

DOI

https://doi.org/10.48322/7fcg-ej20

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

Acknowledgement

NASA Contract NAS5-02099

PublicationInfo

Authors

Angelopoulos, Vassilis; Larson, Davin; Lin, Robert, P.

PublicationDate

2023-01-01 00:00:00

PublishedBy

NASA Space Physics Data Facility

Contacts

	Role	Person
1.	PrincipalInvestigator	spase://SMWG/Person/Vassilis.Angelopoulos
2.	CoInvestigator	spase://SMWG/Person/Davin.Larson
3.	CoInvestigator	spase://SMWG/Person/Robert.P.Lin
4.	MetadataContact	spase://SMWG/Person/Lee.Frost.Bargatze

InformationURL

Name

THEMIS website

URL

http://themis.ssl.berkeley.edu

PriorIDs

spase://VMO/NumericalData/THEMIS/D/SST/PT3S

spase://VSPO/NumericalData/THEMIS/D/SST/PT3S

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/themis/thd/l2/sst/

Description

NASA/GSFC CDAWeb ftp access to the data.

AccessURL

Name

HTTPS from SPDF

URL

https://spdf.gsfc.nasa.gov/pub/data/themis/thd/l2/sst/

Description

In CDF via HTTP from SPDF

AccessURL

Name

CDAWeb

URL

https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=THD_L2_SST&index=sp_phys

ProductKey

THD_L2_SST

Description

Access to ASCII, CDF, and plots via NASA/GSFC CDAWeb.

Format

CDF

Encoding

None

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

THD_L2_SST@0

ProductKey

THD_L2_SST@1

ProductKey

THD_L2_SST@2

ProductKey

THD_L2_SST@3

ProductKey

THD_L2_SST@4

ProductKey

THD_L2_SST@5

Description

Web Service to this product using the HAPI interface.

Format

CSV

ProcessingLevel

Calibrated

ProviderProcessingLevel

Level 2

ProviderVersion

xxxx

InstrumentIDs

spase://SMWG/Instrument/THEMIS/D/SST

MeasurementType

IonComposition

MeasurementType

EnergeticParticles

MeasurementType

Spectrum

TemporalDescription

TimeSpan

StartDate

2007-03-14 01:00:00

RelativeStopDate

-P7D

Cadence

PT3S

Caveats

Calibration for the SST is not complete. Currently there are no corrections for the dead layer. Other data products will be added later as calibration continues. Total list of expected data types can be found on the THEMIS website.

Parameter #1

Name

SST Ion energy spectrogram

ParameterKey

thd_psif_en_eflux

Description

SST Ion energy spectrogram in DSL (Despun Spacecraft) coordinates. Spectrogram data is averaged over solid angle.

Caveats

DSL coordinates: The Z-axis points towards the spacecraft spin axis and the Y-axis is obtained from the cross product of Z and the Spacecraft-Sun direction as viewed from the probe; X completes a right handed system.

Units

eV/(cm^2*s*sr*eV)

UnitsConversion

1e4>1/(m^2*s*sr)

CoordinateSystem

CoordinateRepresentation

Cartesian

CoordinateSystemName

SR2

Structure

Size

Element

Name

thd_psif_en_eflux_1

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_2

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_3

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_4

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_5

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_6

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_7

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_8

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_9

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_10

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_11

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_12

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_13

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_14

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_15

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_16

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Particle

ParticleType

Ion

Qualifier

Differential

Qualifier

Anisotropy

ParticleQuantity

NumberFlux

Parameter #2

Name

SST Ion energy spectrogram Y-axis (energy).

ParameterKey

thd_psif_en_eflux_yaxis

Description

Ion energy spectrogram: Number intensity is graphed against energy on the Y-axis; ranges from 30-300 keV.

Units

UnitsConversion

1.60217653e-19>J

Structure

Size

Element

Name

thd_psif_en_eflux_yaxis_1

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_yaxis_2

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_yaxis_3

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_yaxis_4

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_yaxis_5

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_yaxis_6

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_yaxis_7

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_yaxis_8

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_yaxis_9

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_yaxis_10

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_yaxis_11

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_yaxis_12

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_yaxis_13

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_yaxis_14

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_yaxis_15

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psif_en_eflux_yaxis_16

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Particle

ParticleType

Ion

Qualifier

Scalar

ParticleQuantity

Energy

Parameter #3

Name

thd_psif_en_eflux_time

ParameterKey

thd_psif_en_eflux_time

Description

thd_psif_en_eflux_time, UTC, in seconds since 01-Jan-1970 00:00:00; marks center time of data sample

Caveats

Unleaped seconds. Sample start and end time can be calculated from thd_peif_delta_time (sample duration).

Units

sec

ValidMin

0.0

ValidMax

5.0E9

FillValue

NaN

Support

SupportQuantity

Temporal

Parameter #4

Name

thd_psif_en_eflux_delta_time

ParameterKey

thd_psif_en_eflux_delta_time

Description

Duration in seconds of sample.

Units

sec

ValidMin

0.0

ValidMax

0.0

FillValue

NaN

Support

SupportQuantity

Temporal

Parameter #5

Name

thd_psif_en_eflux_mode

ParameterKey

thd_psif_en_eflux_mode

Description

SST survey mode

ValidMin

ValidMax

FillValue

-128

Support

SupportQuantity

Other

Parameter #6

Name

SST Electron energy spectrogram

ParameterKey

thd_psef_en_eflux

Description

SST Electron energy spectrogram in DSL (Despun Spacecraft) coordinates. Spectrogram data is averaged over solid angle.

Caveats

Units

eV/(cm^2-s-sr-eV)

UnitsConversion

1e4>1/(m^2*s*sr)

CoordinateSystem

CoordinateRepresentation

Cartesian

CoordinateSystemName

SR2

Structure

Size

Element

Name

thd_psef_en_eflux_1

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_2

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_3

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_4

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_5

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_6

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_7

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_8

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_9

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_10

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_11

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_12

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_13

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_14

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_15

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_16

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Particle

ParticleType

Electron

Qualifier

Differential

Qualifier

Anisotropy

ParticleQuantity

NumberFlux

Parameter #7

Name

SST Electron energy spectrogram Y-axis (Energy).

ParameterKey

thd_psef_en_eflux_yaxis

Description

Electron energy spectrogram: Number intensity is graphed against energy on the Y-axis; ranges from 30-300 keV.

Units

UnitsConversion

1.60217653e-19>J

Structure

Size

Element

Name

thd_psef_en_eflux_yaxis_1

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_yaxis_2

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_yaxis_3

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_yaxis_4

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_yaxis_5

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_yaxis_6

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_yaxis_7

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_yaxis_8

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_yaxis_9

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_yaxis_10

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_yaxis_11

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_yaxis_12

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_yaxis_13

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_yaxis_14

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_yaxis_15

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Element

Name

thd_psef_en_eflux_yaxis_16

Index

ValidMin

0.0

ValidMax

1.0E10

FillValue

NaN

Particle

ParticleType

Ion

Qualifier

Scalar

ParticleQuantity

Energy

Parameter #8

Name

thd_psef_en_eflux_time

ParameterKey

thd_psef_en_eflux_time

Description

thd_psef_en_eflux_time, UTC, in seconds since 01-Jan-1970 00:00:00; marks center time of data sample

Caveats

Unleaped seconds. Sample start and end time can be calculated from thd_peif_delta_time (sample duration).

Units

sec

ValidMin

0.0

ValidMax

5.0E9

FillValue

NaN

Support

SupportQuantity

Temporal

Parameter #9

Name

thd_psif_en_flux_delta_time

ParameterKey

thd_psef_en_eflux_delta_time

Description

Sample duration in seconds.

Units

sec

ValidMin

0.0

ValidMax

0.0

FillValue

NaN

Support

SupportQuantity

Temporal

Parameter #10

Name

thd_psef_en_eflux_mode

ParameterKey

thd_psef_en_eflux_mode

Description

SST survey mode

ValidMin

ValidMax

FillValue

-128

Support

SupportQuantity

Other