[RandomBacon]

> daily Earth rotation and even yearly Earth rotation.

Minor FYI: the earth rotates daily, but it revolves around the sun yearly.

    revolve /rĭ-vŏlv′/
    intransitive verb
    To orbit a central point.
    "The planets revolve around the sun."

[HPsquared]

I took it to mean "able to measure a rotation rate of 1 turn per year".