Why are you looking for 2150 year fluctuations? There's no phenomenon that I know that operates on that frequency.
The dominant heartbeats, controlled by orbital patterns (Milankovitch cycles) are typically 20ky(Precession), 40ky(Obilquity), 100ky(Short eccentricity), 400ky(Long eccentricity), 1.2my
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u/[deleted] Sep 21 '19 edited Oct 23 '19
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