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0 pointsJumpCrisscross2y ago0 comments

The IERS reference median is “the weighted average (in the least squares sense) of the reference meridians of the hundreds of ground stations contributing to the IERS network” [1].

[1] https://en.m.wikipedia.org/wiki/IERS_Reference_Meridian

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moffkalast2y ago

Ah so it's just averaged out, that's a decent solution I suppose. But that still makes it fixed to the surface for the most part.

JumpCrisscrossOP2y ago

> still makes it fixed to the surface for the most part

Which makes sense. That’s what we’re trying to measure. You could fix it to a point on the core’s surface, but what wouldn’t be practically useful.

j / k navigate · click thread line to collapse

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moffkalast2y ago

Ah so it's just averaged out, that's a decent solution I suppose. But that still makes it fixed to the surface for the most part.

JumpCrisscrossOP2y ago

> still makes it fixed to the surface for the most part

Which makes sense. That’s what we’re trying to measure. You could fix it to a point on the core’s surface, but what wouldn’t be practically useful.

j / k navigate · click thread line to collapse