 class="classifier">two element ndarray</span></dt><dd><p>Allowed range for fitting of the kinematic centre. Dec in degrees [Default: minimum and maximum Dec within the input cube]
vsys_range : two element ndarray
Allowed range for fitting of the systemic velocity. km/s. [Default: minimum and maximum velocity contained within the input cube]</p>
</dd>
<dt>totflux_range<span class="classifier">two element ndarray</span></dt><dd><p>Allowed range for fitting of the total flux. Units the same as input cube. [De