The Cosmic Ray Subsystem team has made available 6-hour, 24-hour and 26-day data listings and yearly plots for 14 Hydrogen and Helium intensities and two counting rates. The following links will take you to interfaces which will allow you to select the data of choice. The entire Voyager data base consisting of approximately 165 rates and intensities is also available as yearly data sets from the National Space Science Data Center through the Coordinated Heliospheric Observations (COHO) data base.

• Recent 6-hour average history of two counting rates: PGH and LA1
• 6-hour average history of 14 intensities and two counting rates (1977+).
• 24-hour average history of 14 intensities and two counting rates (1977+).
• 26-day average history of 14 intensities and two counting rates (1977+).
• Yearly 6-hour average plots of 14 intensities and two counting rates (1977 - 2012/05/31).
• Yearly 24-hour average plots of 14 intensities and two counting rates (1977 - 2012/05/31).
• Yearly 26-day average plots of 14 intensities and two counting rates (1977 - 2012/05/31).
• COHO data base

Information on data processing, data quality, and a description of the data files in the COHO archive can be reached through the following links:

Return to the Voyager Cosmic Ray Subsytem page.