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Ionospheric Values (Daily Work Sheets), F-Plots, Tabulations, Booklets, Catalogs,
and Log Books
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These ionospheric data consist of scaling notes, equipment usage logs, and ionospheric
values in the form of daily work sheets, F-Plots, tabulations, and booklets. The station
notes list the equipment used, power settings, frequencies used, equipment problems,
and other information about the equipment. The daily work sheets, commonly referred
to an 7E's, are the paper forms used for recording the scaled values values of the
ionospheric parameters. Tabulations and booklets contain the published values by ionospheric
parameter. If publication errors arise or are suspected, the daily work sheets are
usually consulted, if they are available.These data are available from the NOAA National
Centers for Environmental Information (formerly National Geophysical Data Center)
as electrostatic copies and some as imaged files. Most of the data are in the form
of daily work sheets, tabulations, and booklets. The booklets and tabulations have
each ionospheric parameter listed on one or two pages, depending upon the format.
The daily work sheets have one day (24 hours) of scaled ionospheric parameters on
each sheet.
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