VOYAGER RECENT 6-HOUR HISTORY

The Cosmic Ray Subsystem team has made available plots and listings of 6-hour averages of two counting rates, PGH and LA1. The PGH rate consists of greater than 70 MeV/nuc nuclei, primarily protons, and is a good indicator of the level of modulation of galactic cosmic rays. It can also respond to large solar flares. The LA1 rate consists of greater than 0.5 MeV/nuc nuclei, principally protons, and is sensitive to low-energy phenomena in interplanetary space (e.g., co-rotating interaction regions, associated enhancements and solar flares).

The most recent 6-hour averaged figures for the LA1 and IPGH Rates can be displayed by selecting the thumbnail images below.

These figures are usually updated Monday - Friday by 12:00 PM EST. If the creation date in the lower left corner is not today's or yesterday's date you may be viewing a cached copy. Reload the page to get the latest figures.

Voyager-1 3-Month >0.5 MeV/n Ions Rate Gif
Voyager-1 LA1 Rate
Voyager-1 3-Month >70 MeV/n Ions Rate Gif
Voyager-1 IPGH Rate
Voyager-2 3-Month >0.5 MeV/n Ions Rate Gif
Voyager-2 LA1 Rate
Voyager-2 3-Month >70 MeV/n Ions Rate Gif
Voyager-2 IPGH Rate

The time-history data listing of these two rates can be displayed by selecting the desired space craft, rate, time-period, and display mode in the following interface.

Voyager- Rate
Most Recent Output Type
Select Time Format for Listing

TIME FORMAT OPTIONS
ISO YYYY-MM-DDTHH:MM:SS 2001-01-31T00:00:00
Y DOY H YYYY DOY HH 2001 1 0
FLOAT_YEAR Fractional YEAR 2001.000000
YEAR FLOAT_DOY YYYY Fractional DOY 2001 1.000


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