deletions | additions       diff --git a/subsubsection_Choice_of_row_separation__.tex b/subsubsection_Choice_of_row_separation__.tex  index 63901f9..1b110d0 100644  --- a/subsubsection_Choice_of_row_separation__.tex  +++ b/subsubsection_Choice_of_row_separation__.tex 
...
The nominal separation given in the TIP of $\theta_{row}=7.25^\prime$ was derived by setting a uniformity specification of 1\% or better at 3.6GHz. However, this value does not produced an integer number of rows over a convenient span (say integer number of degrees). It would be beneficial for the tiling if it were to do so. Obvious options are to use $7.2^\prime$ or $7.5^\prime$ instead. Implications of these changes on the scan speed (using \S~\ref{sec:otfsetup}) and other parameters are:  \begin{itemize}  \item $\theta_{row}=7.25^\prime$ : The nominal value. This doesn't does not  divide into anything useful (there are 40 rows in $29^\circ$). There are a total of 744 rows (formally 744.83) in the 90 degrees of the North, and an additional 331 (formally 331.03) rows in the South to get to $\delta = -40^\circ$ plus one at the equator, giving a total of 1076 rows in the survey. The scan rate would be $\dot{\theta}=3.287^\prime$/sec.  \item $\theta_{row}=7.2^\prime$ : There are 25 rows in $3^\circ$ for a total of 750 rows in the 90 degrees of the North, and an  additional 333 (formally 333.33) rows in the South to get to $\delta = -40^\circ$ plus one at the equator, giving a total of 1084 rows in the survey. The scan rate would be $\dot{\theta}=3.310^\prime$/sec.