Data Description

This page summarizes information about the selected resource and its origin based on SPASE metadata.

Table of Contents

  1. Product
  2. Repository
  3. Instrument
  4. Observatory
  5. Persons

SPASE version 2.2.0

Numerical Data Product: IBEX-Hi digital maps every 6 months

Resource ID
spase://VEPO/NumericalData/IBEX/Hi/Maps-TXT Get XML
Name
IBEX-Hi digital maps every 6 months
Description

As of this writing (11/5/2010), this product had been issued by the IBEX team in two releases. Release 1 IBEX-Hi map data are superseded by Release 2 data which are more time-extensive (12 months vs. 6 months) and are richer in content. While Release 1 IBEX-Hi map data and their documentation remain accessible at ftp://spdf.gsfc.nasa.gov/pub/data/ibex/hi/maps/digital_data/release_1/ and ftp://spdf.gsfc.nasa.gov/pub/data/ibex/hi/maps/images/release_1/, this description supports the retrieval and use of Release 2 data only.

The Release_2 IBEX-Hi map data contain all-sky 6 deg x 6 deg resolution maps in J2000 ecliptic coordinates of energetic neutral fluxes reaching the near-Earth IBEX spacecraft from the distant heliosphere and heliosheath. Maps are in both a spacecraft frame and, via Compton-Getting corrections, a heliospheric frame. Basic maps are each accumulated over 6-months duration, so far for epochs 1 (12/2008-06/2009) and 2 (06/2009-12/2009). Maps are available for five of the energy bands of IBEX-Hi (0.52-0.95, 0.84-1.55, 1.36-2.50, 1.99-3.75, 3.13-6.00 keV) and, for the heliospheric frame only, also for six monoenergetic points (0.71, 1.11, 1.74, 2.73, 3.0, 4.29 keV). In addition, monoenergetic maps are available as summed over the data collected during epochs 1 and 2 combined. All maps are available in digital text format and in PNG image format (considered as separate data sets within VEPO).

Given that VHO/VEPO typically displays clickable granule (file) names for any given specification of data product and time span, and given that IBEX-Hi digital maps and PNG-formatted display maps are each considered single data products, a request for data from either product will yield .GE.20 names of files containing data spanning or within the requested time span. For IBEX, the names shown by VHO/VEPO actually have the form subdirectory/filename. The subdirectories are named map1, map1cg, map2, map2cg, and map-combined. Maps involving "1" ("2") are from the first (second) 6-month epoch, while "combined" means composed of data taken during epochs 1 and 2. Maps involving (not involving) "cg" means heliospheric frame (spacecraft frame). In the first four subdirectories, file names are of the forms ha60.hide-trp-flux100-hi-N-flux.ext and ha60.hide-trp-mono_80-P.PP-flux.ext, where "ext" is "png" or "txt" according to which product is requested, N is the energy step number for the IBEX-Hi instrument (2-6), P.PP is the energy level, in keV, of a monoenergetic flux. Files in the "combined" subdirectories are named "combined-P.PP-flux.ext, where P.PP has the same meaning as above.

In addition to the flux maps to which VEPO provides access, several map files whose data support the determination of the fluxes are also available in the underlying nssdcftp directories and are described by aareadme files there (and by IBEX web pages at SWRI: http://ibex.swri.edu/ibexpublicdata/Data_Release_2/)

Additional information
SWRI IBEX Site
SWRI IBEX Release 2 Page
Acknowledgement

The IBEX Team

Contact
Role Person
1. Principal investigator Dr. David J. McComas Get XML
Release date
2010-05-19 00:00:00
Repository
Name
SPDF Get XML
Availability
Online
Access rights
Open
URL
SPDF FTP area

Directory with energy-range-specific subdirectories

SPDF HTTP area

In CDF via HTTP from SPDF

Format
Text
File size
800 KB per 1 year
Acknowledgement

The IBEX Team

Instrument
IBEX-Hi Get XML
Measurement type
Neutral atom images
Temporal description
Start date
2008-12-25 00:00:00
Relative stop date
9 months
Note

Data are made public in 6-month batches, with a modest delay after the end of each 6 month interval.

Cadence
6 months
Observed regions
Heliosphere.Heliosheath

Parameters

Parameter #1

Name
ENA fluxes
Description

Array of neutral hydrogen fluxes

Cadence
6 months
Units
number/sec-cm**2-ster-keV
Coordinate system
Spherical J2000
Structure
Size
60 30
Description

The array has 30 rows and 60 columns. Row 1 (30) is for the north (south) ecliptic polar region. The columns start at zero ecliptic longitude and step through to ecliptic longitude 360. The first and last columns have the same values.

Particle type
Atom
Quantity
Number flux
AtomicNumber
1
Energy range
Low energy
0.52
High energy
6.00
Units
keV

SPASE version 2.1.0

Instrument: IBEX-Hi

Instrument ID
spase://SMWG/Instrument/IBEX/Hi Get XML
Name
IBEX-Hi
Description

The IBEX-Hi instrument measures ENA's in six energy bands within the 0.38-6.0 keV range. The instrument is a single-pixel imager with a 6.5 x 6.5 deg field of view that images a 6.5 x 360 swath of the sky each 15-sec spacecraft spin about the sun-pointing spin axis. The six energy windows have FWHM ranges of 0.38-0.59, 0.52-0.95, 0.84-1.55, 1.36-2.50, 1.99-3.75, 3.13-6.00 keV. These are referred to as bands 1 to 6, respectively, in data products. In normal operation, 2 successive spins are devoted to each energy window every 12 spin (~3 min) periods.

Additional information
Space Science Reviews paper

Paper is by H.O. Funsten and 34 co-authors.

Contact
Role Person
1. Principal investigator Dr. David J. McComas Get XML
Release date
2010-05-20 00:26:46
Instrument type
Neutral Atom Imager
Investigation name
IBEX-Hi
Observatory
IBEX Get XML

SPASE version 2.2.0

Observatory: IBEX

Observatory ID
spase://SMWG/Observatory/IBEX Get XML
Name
IBEX
Description

NASA's IBEX (Interstellar Boundary Explorer) spacecraft was launched 19-Oct-2008 to discover the interaction between the solar wind and the interstellar medium. Its two energetic neutral atom (ENA) instruments measure 10 eV - 6 keV ENA's indicative of charged particle populations near and beyond the heliosphere's termination shock. The spacecraft is in a geocentric, 8-day orbit between 7000 km and 37 Re. Its spin axis is adjusted each orbit to point towards the sun. Its two ENA detectors look normal to the spin axis, thus measuring 360 deg swaths of the sky each 15-sec spacecraft spin. The full sky is measured every 6 months.

Additional information
IBEX web pages at SWRI

Section of overall IBEX pages at SWRI for researchers, with links to published descriptive and science-results papers

Space Science Reviews paper

Paper is by D.J. McComas and 28 co-authors.

Contact
Role Person
1. Principal investigator Dr. David J. McComas Get XML
Release date
2010-08-05 18:19:11
Location
Region
Heliosphere.NearEarth

SPASE version 2.2.0

Person: Dr. David J. McComas

Name
Dr. David J. McComas
Organization
Southwest Research Institute
Person ID
spase://SMWG/Person/David.J.McComas Get XML
Release date
2010-08-05 17:35:46

SPASE version 2.2.0

Person: Ms. Tamara J. Kovalick

Name
Ms. Tamara J. Kovalick
Organization
GSFC-Code 672
Email
Tamara.J.Kovalick@nasa.gov
Phone
+1-301-286-9422
Person ID
spase://SMWG/Person/Tamara.J.Kovalick Get XML
Release date
2010-08-05 17:35:47

SPASE version 2.2.0

Person: Mr. Robert M. Candey

Name
Mr. Robert M. Candey
Organization
NASA Goddard Space Flight Center
Address
Code 672, Greenbelt, MD 20771, USA
Email
robert.m.candey@nasa.gov
Phone
1-301-286-6707
Person ID
spase://SMWG/Person/Robert.M.Candey Get XML
Release date
2010-08-05 17:35:47

SPASE version 2.2.0

Person: Dr. Robert E. McGuire

Name
Dr. Robert E. McGuire
Organization
NASA Goddard Space Flight Center
Address
Code 672, Greenbelt, MD 20771, USA
Email
mcguire@mail630.gsfc.nasa.gov
Phone
+1 301 286 7794
Person ID
spase://SMWG/Person/Robert.E.McGuire Get XML
Release date
2010-08-05 17:35:47

SPASE version 1.3.0

Repository: SPDF

Repository ID
spase://SMWG/Repository/NASA/GSFC/SPDF Get XML
Name
SPDF
Description

Space Physics Data Facility

Additional information
SPDF

Space Physics Data Facility

Contact
Role Person
1. General contact Ms. Tamara J. Kovalick Get XML
2. Technical contact Mr. Robert M. Candey Get XML
3. Project scientist Dr. Robert E. McGuire Get XML
Release date
2008-08-26 21:02:30
Prior IDs
spase://vspo/repository/61
spase://SMWG/Repository/SPDF
Access URL