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ELFIN-A Predicted Ephemeris Data

(2024). ELFIN-A Predicted Ephemeris Data [Data set]. NASA Space Physics Data Facility.

ResourceID
spase://NASA/NumericalData/ELFIN/A/Ephemeris/PRED/PT1S

Description

The Electron Losses and Fields Investigation (ELFIN) mission is a space weather mission using three scientific instruments in a 3U+ CubeSat. The instruments measure wave and particle data. These ELFIN-A state files contain predicted position, attitude and orbit events.

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Details

Version:2.6.1

NumericalData

ResourceID
spase://NASA/NumericalData/ELFIN/A/Ephemeris/PRED/PT1S
ResourceHeader
ResourceName
ELFIN-A Predicted Ephemeris Data
ReleaseDate
2024-06-28 12:34:56.789
Description

The Electron Losses and Fields Investigation (ELFIN) mission is a space weather mission using three scientific instruments in a 3U+ CubeSat. The instruments measure wave and particle data. These ELFIN-A state files contain predicted position, attitude and orbit events.

Acknowledgement
Please acknowledge the Principal Investigator, V. Angelopoulos, NASA, and NSF for providing the Data. Open Data for Scientific Use.
PublicationInfo
Authors
Angelopoulos, V., Russell, C., Wu, J., Wilkins, C., Caron, R., Tsai, E., King, J., and Norris, A.
PublicationDate
2024-06-19 12:34:56.789Z
PublishedBy
NASA Space Physics Data Facility
Funding
Agency
NASA
Project
ELFIN funding
AwardNumber
NNX14AN68G
Funding
Agency
NSF
Project
ELFIN funding
AwardNumber
AGS-1242918
Funding
Agency
NSF
Project
ELFIN funding
AwardNumber
AGS-2019950
Contacts
RolePersonStartDateStopDateNote
1.PrincipalInvestigatorspase://SMWG/Person/Vassilis.Angelopoulos
2.Scientistspase://SMWG/Person/Cindy.Russell
3.Scientistspase://SMWG/Person/Jiashu.Wu
4.TechnicalContactspase://SMWG/Person/Colin.Wilkins
5.TechnicalContactspase://SMWG/Person/Ryan.Caron
6.ProjectManagerspase://SMWG/Person/Ethan.Tsai
7.DataProducerspase://SMWG/Person/James.King
8.DataProducerspase://SMWG/Person/Austin.Norris
9.MetadataContactspase://SMWG/Person/Robert.M.Candey
10.MetadataContactspase://SMWG/Person/Lee.Frost.Bargatze
11.MetadataContactspase://SMWG/Person/James.M.Weygand
InformationURL
Name
Electron Losses and Fields INvestigation-A state file
URL
https://elfin.igpp.ucla.edu
Description

Electron Losses and Fields INvestigation-A twin satellite mission University of California, Los Angeles homepage.

Language
en
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/elfin/elfina/ephemeris/pred/
Description

Access to Data in CDF Format via ftps from SPDF

AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/elfin/elfina/ephemeris/pred/
Description

Access to Data in CDF Format via https from SPDF

AccessURL
Name
CDAWeb
URL
https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=ELA_l1_STATE_PRED&index=sp_phys
ProductKey
ELA_l1_STATE_PRED
Description

Access to ASCII, CDF, and Plots via NASA/GSFC CDAWeb

Format
CDF
Encoding
None
Acknowledgement
Please acknowledge the Principal Investigator, V. Angelopoulos, NASA, and NSF. Please acknowledge the Data Providers and CDAWeb when using these Data.
ProcessingLevel
Calibrated
InstrumentIDs
spase://SMWG/Instrument/
MeasurementType
InstrumentStatus
TemporalDescription
TimeSpan
StartDate
2018-09-17 00:00:00.000
StopDate
2023-01-01 23:59:59.999
Cadence
PT1S
ObservedRegion
Earth.Magnetosphere
ObservedRegion
Earth.Magnetosphere.Polar
ObservedRegion
Earth.NearSurface
ObservedRegion
Earth.NearSurface.AuroralRegion
ObservedRegion
Earth.NearSurface.Atmosphere
ObservedRegion
Earth.NearSurface.Ionosphere
ObservedRegion
Earth.NearSurface.PolarCap
Parameter #1
Name
Time since Jan 1, 2000
ParameterKey
ela_state_time
Description

Coordinated universal time (UTC) in seconds.

Caveats
Unleaped seconds
Cadence
PT1S
Units
s
RenderingHints
AxisLabel
ela_state_time
ValueFormat
E12.2
ScaleType
LinearScale
ValidMin
2010-01-01T00:00:00.000000000
ValidMax
2029-12-31T23:59:58.999000000
FillValue
9999-12-31T23:59:59.999999999
Support
SupportQuantity
Temporal
Parameter #2
Name
Position XYZ
Set
Time series defined by using: ela_state_time
ParameterKey
ela_pos_gei
Description

Spacecraft Position XYZ in GEI-J2000

Cadence
PT1S
Units
km
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GEI
Support
Qualifier
Vector
SupportQuantity
Positional
Parameter #3
Name
Velocity
Set
Time series defined by using: ela_state_time
ParameterKey
ela_vel_gei
Description

Spacecraft Velocity Vxyz

Cadence
PT1S
Units
km/s
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GEI
Support
Qualifier
Vector
SupportQuantity
Velocity
Parameter #4
Name
Time since Jan 1, 2000
ParameterKey
ela_att_time
Description

Attitude time, UTC, in seconds.

Caveats
Unleaped seconds
Cadence
PT60S
Units
s
RenderingHints
AxisLabel
ela_att_time
ValueFormat
E12.2
ScaleType
LinearScale
ValidMin
2010-01-01T00:00:00.000000000
ValidMax
2029-12-31T23:59:58.999000000
FillValue
9999-12-31T23:59:59.999999999
Support
SupportQuantity
Temporal
Parameter #5
Name
Attitude XYZ
Set
Time series defined by using: ela_att_time
ParameterKey
ela_att_gei
Description

Spacecraft Attitude XYZ

Cadence
PT60S
Units
km
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
GEI
Support
Qualifier
Vector
SupportQuantity
Positional
Parameter #6
Name
Time since Jan 1, 2000
Set
Time series defined by using: ela_att_time
ParameterKey
ela_att_solution_date
Description

Date of attitude solution, UTC, in seconds

Cadence
PT60S
Units
s
RenderingHints
AxisLabel
att_solution_date
ValueFormat
E12.2
ValidMin
2010-01-01T00:00:00.000000000
ValidMax
2029-12-31T23:59:58.999000000
FillValue
9999-12-31T23:59:59.999999999
Support
SupportQuantity
Temporal
Parameter #7
Name
ela_att_uncertainty
Set
Time series defined by using: ela_att_time
ParameterKey
ela_att_uncertainty
Description

Uncertainty of att

Cadence
PT60S
Units
°
RenderingHints
AxisLabel
att_uncertainty
ValueFormat
F12.8
ValidMin
0.0
ValidMax
360.0
FillValue
NaN
Support
SupportQuantity
Housekeeping
Parameter #8
Name
Attitude Flag
Set
Time series defined by using: ela_att_time
ParameterKey
ela_att_flag
Description

Flag indicating if the attitude is interpolated=0, modeled=1.

Cadence
PT60S
RenderingHints
AxisLabel
attitude flag
ValueFormat
i1
ValidMin
0
ValidMax
1
FillValue
-1
Support
SupportQuantity
Housekeeping
Parameter #9
Name
Calculated Spin Period
Set
Time series defined by using: ela_att_time
ParameterKey
ela_att_spinper
Description

Calculated spin period.

Cadence
PT60S
Units
sec
RenderingHints
AxisLabel
spinper
ValueFormat
F12.8
ValidMin
0
ValidMax
40
FillValue
-128
Support
SupportQuantity
Housekeeping
Parameter #10
Name
ela_spin_orbnorm_angle
Set
Time series defined by using: ela_att_time
ParameterKey
ela_spin_orbnorm_angle
Description

Angle between spin vector and orbit normal.

Cadence
PT160S
Units
°
RenderingHints
AxisLabel
spin_orbnorm_angle
ValueFormat
F12.8
ValidMin
0.0
ValidMax
360.0
FillValue
NaN
Support
SupportQuantity
Orientation
Parameter #11
Name
ela_spin_sun_angle
Set
Time series defined by using: ela_att_time
ParameterKey
ela_spin_sun_angle
Description

Angle between spin vector and sun.

Cadence
PT60S
Units
°
RenderingHints
AxisLabel
spin_sun_angle
ValueFormat
F12.8
ValidMin
0.0
ValidMax
360.0
FillValue
NaN
Support
SupportQuantity
Orientation
Parameter #12
Name
ELFIN A Sun Flag
Set
Time series defined by using: ela_state_time
ParameterKey
ela_sun
Description

ELFIN A sun flag. Spacecraft in sun = 1.

Cadence
PT1S
RenderingHints
AxisLabel
spacecraft in sun
ValueFormat
I1
ValidMin
0.0
ValidMax
1.0
FillValue
NaN
Support
SupportQuantity
Housekeeping