NASA Logo, National Aeronautics and Space Administration
NASA Space Science Data Coordinated Archive Header

Advanced Composition Explorer Level 2 SWICS/SWIMS Daily Solar Wind, HDF

NSSDCA ID: SPHE-00806

Availability: Archived at NSSDC, accessible from elsewhere

Time span: 1998-01-23 to 2001-01-06

Description

This data collection contains daily averaged Level 2 data in binary Hierarchical Data Format (HDF) format from the Solar Wind Ion Composition Spectrometer (SWICS) and Solar Wind Ion Mass Spectrometer (SWIMS) experiments on the Advanced Composition Explorer (ACE) spacecraft. Each data record contains bulk and thermal speeds (km/s) for selected ions (1H+1, He+2, O+6, Mg+10, and Fe+11), abundance ratios of selected elements (4He+2/O, 20Ne+8/O, 24Mg+10/O, and 56Fe+(7 to 12)/O), ratios of charge states for the same elements (C+5/C+6, O+7/O+6, and Fe+11/Fe+9), and ratios of isotopes for the same elements (3He+2/4He+2, 22Ne+8/20Ne+8, and 26Mg+10/24Mg+10). A data value of -999.9 indicates bad or missing data for the given time period. One data file covers the entire data set and others include only data from consecutive 27-day Bartel periods. Release notes on Level 2 processing are given in the text file swics_swims_release_notes.txt. The SWIMS and SWICS versions of this data set are identical.

This collection is available on-line at: https://spdf.gsfc.nasa.gov/pub/data/ace/swics_swims/level_2/

Alternate Names

  • SWICS/SWIMS L2 1-Day Plasma,HDF

Discipline

  • Space Physics: Heliospheric Studies

Old NSSDCA IDs

  • 97-045A-01B
  • 97-045A-02B

Additional Information

Spacecraft

Experiments

Questions and comments about this data collection can be directed to: Dr. John F. Cooper

 

Personnel

NameRoleOriginal AffiliationE-mail
Dr. Andrew J. DavisGeneral ContactCalifornia Institute of Technologyasc@srl.caltech.edu
Mr. Robert M. CandeyGeneral ContactNASA Goddard Space Flight Centerrobert.m.candey@nasa.gov
[USA.gov] NASA Logo - nasa.gov