
by the Jacchia's 70 and derived models. The gaussian mean uses a standard deviation of </span><span style="font-family: ms sans serif;">70
days </span><span style="font-family: ms sans serif;">and is computed on +/- 3 sd interval, or 420
days plus the computed day. The arithmetic mean is performed in +/- 3
solar rotations (27 days each), or 163 days, including the centered
day. Both were calculated with the observed flux.</span><span style="font-family: MS Sans Serif;"><br>
      <br>
      </span>
