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ACE Definitive Attitude, Hourly Values, Direction Cosines in RTN, GSE, and J2000 GCI Coordinates

ResourceID
spase://NASA/NumericalData/ACE/Attitude/Definitive/PT1H

Description

ACE Definitive Attitude, Direction Cosines in Radial-Tangential-Normal, RTN, Geocentric Solar Ecliptic, GSE, and J2000 Geocentric Ecliptic, GCI, Coordinates. Data in GCI and RTN Coordinates are received Daily by the ACE Science Center, ASC, from the ACE Flight Dynamics Facility, FDF, at GSFC. ASC transforms the Data into the other Coordinate Systems. The Data are reported for the Beginning and End of each DSN Telemetry Pass, and also for the Beginning and End of each Spacecraft Maneuver during a DSN Pass. Because the Attitude and Orbit of the ACE Spacecraft change relatively slowly, the FDF does not provide the Data on finer Time Scales.

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Details

Version:2.2.8

NumericalData

ResourceID
spase://NASA/NumericalData/ACE/Attitude/Definitive/PT1H
ResourceHeader
ResourceName
ACE Definitive Attitude, Hourly Values, Direction Cosines in RTN, GSE, and J2000 GCI Coordinates
ReleaseDate
2020-07-07 21:14:06Z
Description

ACE Definitive Attitude, Direction Cosines in Radial-Tangential-Normal, RTN, Geocentric Solar Ecliptic, GSE, and J2000 Geocentric Ecliptic, GCI, Coordinates. Data in GCI and RTN Coordinates are received Daily by the ACE Science Center, ASC, from the ACE Flight Dynamics Facility, FDF, at GSFC. ASC transforms the Data into the other Coordinate Systems. The Data are reported for the Beginning and End of each DSN Telemetry Pass, and also for the Beginning and End of each Spacecraft Maneuver during a DSN Pass. Because the Attitude and Orbit of the ACE Spacecraft change relatively slowly, the FDF does not provide the Data on finer Time Scales.

Acknowledgement
E.C. Stone, Please acknowledge the Principal Investigator, E. C. Stone, California Institute of Technology, Pasadena, USA. See the Rules of Use available from the ACE Science Center, ASC, at: http://www.srl.caltech.edu/ACE/ASC/level2/policy_lvl2.html.
Contacts
RolePerson
1.PrincipalInvestigatorspase://SMWG/Person/Edward.C.Stone.Jr
2.MetadataContactspase://SMWG/Person/Robert.E.McGuire
3.MetadataContactspase://SMWG/Person/Lee.Frost.Bargatze
InformationURL
Name
ACE Attitude and Orbit Data Website
URL
http://www.srl.caltech.edu/ACE/ASC/orbit.html
Description

ACE Attitude and Orbit Data Release Notes and Information

InformationURL
Name
Satellite Situation Center, SSCWeb, System and Services
URL
https://sscweb.gsfc.nasa.gov
Description

The Satellite Situation Center Web, SSCWeb, Service has been developed and is operated jointly by the NASA/GSFC Space Physics Data Facility, SPDF, and the National Space Science Data Center, NSSDC, to support a Range of NASA Science Programs and to fulfill Key International NASA Responsibilities including those of NSSDC and the World Data Center-A for Rockets and Satellites. The Software and associated Database of SSCWeb together form a System to cast Geocentric Spacecraft Location Information into a Framework of Empirical Geophysical Regions and Mappings of Spacecraft Locations along Lines of the Earth's Magnetic Field. This Capability is one Key to Mission Science Planning, both Single Missions and Coordinated Observations of Multiple Spacecraft with Ground-Based Investigations, and to subsequent Multi-Mission Data Analysis.

PriorIDs
spase://VSPO/NumericalData/ACE/Attitude/Definitive/PT1H
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/ace/orbit/level_2_cdaweb/def_at/
Description

Access to Data in CDF Format via ftp from SPDF

AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/ace/orbit/level_2_cdaweb/def_at/
Description

Access to Data in CDF Format via http from SPDF

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

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

Format
CDF
Encoding
None
Acknowledgement
E.C. Stone, Please acknowledge the Principal Investigator, E. C. Stone, California Institute of Technology, Pasadena, USA. See the Rules of use available from the ACE Science Center, ASC, at: http://www.srl.caltech.edu/ACE/ASC/level2/policy_lvl2.html. Please acknowledge the data providers and CDAWeb when using these data.
ProcessingLevel
Calibrated
InstrumentIDs
spase://SMWG/Instrument/ACE/Ephemeris
MeasurementType
Ephemeris
TemporalDescription
TimeSpan
StartDate
1997-08-26 00:00:00.000
RelativeStopDate
-P1D
Cadence
PT1H
ObservedRegion
Heliosphere
ObservedRegion
Heliosphere.NearEarth
ObservedRegion
Heliosphere.Inner
Parameter #1
Name
Epoch Time
ParameterKey
Epoch
Description

Time, Beginning of Interval

Caveats
Average Type: standard This parameter exhibits an increasing monotonic progression.
Cadence
PT1H
Units
ms
UnitsConversion
1e-3>s
RenderingHints
AxisLabel
Epoch
ValueFormat
E14.8
ScaleMin
6.2987652219904e+13
ScaleMax
6.3745034619904e+13
ScaleType
LinearScale
ValidMin
01-Jan-1996 00:00:00.000
ValidMax
01-Jan-2020 00:00:00.000
FillValue
-1.0e+31
Support
SupportQuantity
Temporal
Parameter #2
Name
Spacecraft Attitude, Direction Cosines, RTN
Set
Time series defined by using: EPOCH
ParameterKey
RTN_ATT
Description

ACE Spacecraft Attitude, Direction Cosines, Radial-Tangential-Normal, RTN, Coordinates

Caveats
ACE Spacecraft Attitude, Direction Cosines in RTN Coordinates Average Type: standard
Cadence
PT1H
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
RTN
RenderingHints
DisplayType
TimeSeries
ValueFormat
F9.5
ScaleMin
-1.0
ScaleMax
1.0
Structure
Size
3
Element
Name
r_RTN
Index
1
Element
Name
t_RTN
Index
2
Element
Name
n_RTN
Index
3
ValidMin
-1.0
ValidMax
1.0
FillValue
-1.0e+31
Support
Qualifier
DirectionAngle
SupportQuantity
Positional
Parameter #3
Name
Spacecraft Attitude, Direction Cosines, J2000 GCI
Set
Time series defined by using: EPOCH
ParameterKey
GCI_ATT
Description

ACE Spacecraft Attitude, Direction Cosines, J2000 GCI Coordinates

Caveats
ACE Spacecraft Attitude, Direction Cosines in J2000 GCI Coordinates Average Type: standard
Cadence
PT1H
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
GEI
RenderingHints
DisplayType
TimeSeries
ValueFormat
F9.5
ScaleMin
-1.0
ScaleMax
1.0
Structure
Size
3
Element
Name
x_GCI
Index
1
Element
Name
y_GCI
Index
2
Element
Name
z_GCI
Index
3
ValidMin
-1.0
ValidMax
1.0
FillValue
-1.0e+31
Support
Qualifier
DirectionAngle
SupportQuantity
Positional
Parameter #4
Name
Spacecraft Attitude, Direction Cosines, GSE
Set
Time series defined by using: EPOCH
ParameterKey
GSE_ATT
Description

ACE Spacecraft Attitude, Direction Cosines, GSE Coordinates

Caveats
ACE Spacecraft Attitude, Direction Cosines in GSE Coordinates Average Type: standard
Cadence
PT1H
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
GSE
RenderingHints
DisplayType
TimeSeries
ValueFormat
F9.5
ScaleMin
-1.0
ScaleMax
1.0
Structure
Size
3
Element
Name
x_GSE
Index
1
Element
Name
y_GSE
Index
2
Element
Name
z_GSE
Index
3
ValidMin
-1.0
ValidMax
1.0
FillValue
-1.0e+31
Support
Qualifier
DirectionAngle
SupportQuantity
Positional