\begin{table}%t1
 %\centering
\par
\caption{\label{tab1}Area-weighted mean tilt angles in degrees for each cycle for MW and KK records.}             % title of Table
 %\centering
                          % used for centering table
 \begin{tabular}{c c c}        % centered columns (4 columns)
 \hline\hline                 % inserts double horizontal lines
 Cycle & MW $\pm$ $1\sigma$ & KK $\pm$ $1\sigma$  \\    % table heading 
 \hline                        % inserts single horizontal line
    15 & 5.69 $\pm$ 0.57 & 5.00 $\pm$ 0.50 \\      % inserting body of the table
    16 & 5.08 $\pm$ 0.46 & 5.91 $\pm$ 0.43 \\
    17 & 5.83 $\pm$ 0.42 & 6.41 $\pm$ 0.41 \\
    18 & 5.69 $\pm$ 0.35 & 4.97 $\pm$ 0.38 \\
    19 & 3.84 $\pm$ 0.33 & 4.59 $\pm$ 0.38 \\
    20 & 4.63 $\pm$ 0.38 & 5.73 $\pm$ 0.36 \\
    21 & 5.30 $\pm$ 0.40 & 5.37 $\pm$ 0.42 \\
 \hline                                   %inserts single line
 \end{tabular}
 \end{table}