Use the current rotcor readings as the zero point of future rotcor corrections.

Arguments:

(none)

Example:

The following example tells the tracker to read the current rotational corrections, record them in tracker.zero[0..1] and use them subsequently as the zero points of the tracker.rotcor register.

  zero_rotcor

Context:

As documented for the rotcor command, the rotcor correction is composed of two components, measured from rotation meters. These meters have arbitrary zero points which potentially change with time and temperature. This command allows one to zero them relative to the current readings. We plan to do this at a standard elevation. Note that if this command is used when the rotcor correction has been disabled with the rotcor command, the zero points will themselves be set to zero.