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Data Access

IBEX-Lo Histograms

(2025). IBEX-Lo Histograms [Data set]. Space Physics Data Facility.

ResourceID
spase://NASA/NumericalData/IBEX/Lo/Histograms

Description

Each record captures the number of arriving ENA's
of a specific energy band, coincidence type, species (hydrogen or
oxygen) and spin phase. Data for each full ~15s spacecraft spin
are given at each of 60 spin phases in sequential records, with
the J2000 right ascension and declination for look directions
corresponding to each spin phase being given in the corresponding
record. Also included in each record are a time tag (seconds since
00:00 UT of January 6, 1980), the IBEX location, ENA energy band,
species and coincidence type. Data files are given for each 8-day
orbit and for each of the 8 IBEX-Lo energy bands. The data files
are in ASCII.

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Details

Version:2.7.1

MetadataRightsList

Rights
SchemeURI
https://spdx.org/licenses/
RightsIdentifierScheme
SPDX
RightsIdentifier
CC0-1.0
RightsURI
https://spdx.org/licenses/CC0-1.0.html
RightsName
Creative Commons Zero v1.0 Universal
Note
CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions

Version:2.7.1

NumericalData

ResourceID
spase://NASA/NumericalData/IBEX/Lo/Histograms
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
IBEX-Lo Histograms
ReleaseDate
2025-12-04 13:29:29Z
RevisionHistory
RevisionEvent
ReleaseDate
2021-03-11 18:39:11Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2025-11-14 16:02:23Z
Note
Added PublicationInfo. Added ResourceType and NamingAuthority. Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. Matched version number in schemaLocation attribute to updated value in Version tag. ZCB
RevisionEvent
ReleaseDate
2025-12-04 13:29:29Z
Note
Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB
Description

Each record captures the number of arriving ENA's
of a specific energy band, coincidence type, species (hydrogen or
oxygen) and spin phase. Data for each full ~15s spacecraft spin
are given at each of 60 spin phases in sequential records, with
the J2000 right ascension and declination for look directions
corresponding to each spin phase being given in the corresponding
record. Also included in each record are a time tag (seconds since
00:00 UT of January 6, 1980), the IBEX location, ENA energy band,
species and coincidence type. Data files are given for each 8-day
orbit and for each of the 8 IBEX-Lo energy bands. The data files
are in ASCII.

Acknowledgement
The IBEX Team
PublicationInfo
Authors
McComas, David J.
PublicationDate
2025-11-14 16:02:23Z
PublishedBy
Space Physics Data Facility
Contacts
RolePersonStartDateStopDateNote
1.PrincipalInvestigatorspase://SMWG/Person/David.J.McComas
InformationURL
Name
Readme file at SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/ibex/release3/lo/time_series/TS_description.txt
Description

This file was created by the IBEX team.

PriorIDs
spase://VEPO/NumericalData/IBEX/Lo/Histograms
spase://VSPO/NumericalData/IBEX/Lo/Histograms
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF
Availability
Online
AccessRights
Open
RightsList
Rights
SchemeURI
https://spdx.org/licenses/
RightsIdentifierScheme
SPDX
RightsIdentifier
CC0-1.0
RightsURI
https://spdx.org/licenses/CC0-1.0.html
RightsName
Creative Commons Zero v1.0 Universal
Note
CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products
AccessURL
Name
FTPS from SPDF (not with most browsers)
URL
ftps://spdf.gsfc.nasa.gov/pub/data/ibex/release3/lo/time_series/histograms/
Description

Directory with energy-range-specific subdirectories

AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/ibex/release3/lo/time_series/histograms/
Description

In CDF via HTTP from SPDF

Format
Text
DataExtent
Quantity
5
Units
GB
Per
P1Y
Acknowledgement
The IBEX Team
InstrumentIDs
spase://SMWG/Instrument/IBEX/Lo
MeasurementType
NeutralAtomImages
TemporalDescription
TimeSpan
StartDate
2008-12-25 00:00:00
StopDate
2009-06-19 00:00:00
Note
Data are planned for 6-month releases. However, Release_2 contained only IBEX-Hi map data. Extensions to later times for this data set may be forthcoming in the future.
Cadence
PT6M
ObservedRegion
Heliosphere.Heliosheath
Parameter #1
Name
ENA arrival direction
Description

ENA arrival direction

Units
deg
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
J2000
Particle
ParticleType
Atom
ParticleQuantity
ArrivalDirection
AtomicNumber
1
AtomicNumber
8
EnergyRange
Low
0.01
High
2.0
Units
keV
Parameter #2
Name
ENA counts
Description

ENA counts of specific energy band, coincidence
type, and spin phase (look direction)

Particle
ParticleType
Atom
ParticleQuantity
Counts
AtomicNumber
1
AtomicNumber
8
EnergyRange
Low
0.01
High
2.0
Units
keV