## 3 Results and Discussion
### Results
#### 3.1.2 Step 2
\begin{table}
\begin{tabular}{c c c c c c c c c c} \hline  & \multicolumn{3}{c}{**Mean XYZ [m]**} & \multicolumn{3}{c}{**Mean XY [m]**} & \multicolumn{3}{c}{**Mean Z [m]**} \\ \cline{2-10}
**Elev. Angle** & **10\({}^{\circ}\)** & **30\({}^{\circ}\)** & **40\({}^{\circ}\)** & **10\({}^{\circ}\)** & **30\({}^{\circ}\)** & **40\({}^{\circ}\)** & **10\({}^{\circ}\)** & **30\({}^{\circ}\)** & **40\({}^{\circ}\)** \\ \hline Method \(A\) & 0.00 & 0.02 & 0.05 & 0.00 & 0.01 & 0.01 & 0.00 & 0.01 & 0.05 \\ Method \(B\) & 0.01 & 0.66 & 0.53 & 0.01 & 0.36 & 0.16 & 0.01 & 0.55 & 0.49 \\ Method \(C\) & 0.01 & 0.44 & 0.54 & 0.01 & 0.32 & 0.39 & 0.01 & 0.30 & 0.37 \\ Method \(D\) & 0.90 & 0.54 & - & 0.48 & 0.20 & - & 0.73 & 0.43 & - \\ \hline \multicolumn{10}{c}{**Median XYZ [m]**} & \multicolumn{3}{c}{**Median XY [m]**} & \multicolumn{3}{c}{**Median Z [m]**} \\ \cline{2-10}
**Elev. Angle** & **10\({}^{\circ}\)** & **30\({}^{\circ}\)** & **40\({}^{\circ}\)** & **10\({}^{\circ}\)** & **30\({}^{\circ}\)** & **40\({}^{\circ}\)** & **10\({}^{\circ}\)** & **30\({}^{\circ}\)** & **40\({}^{\circ}\)** \\ \hline Method \(A\) & 0.00 & 0.01 & 0.04 & 0.00 & 0.00 & 0.01 & 0.00 & 0.01 & 0.04 \\ Method \(B\) & 0.01 & 0.02 & 0.00 & 0.00 & 0.01 & 0.00 & 0.00 & 0.01 & 0.00 \\ Method \(C\) & 0.01 & 0.01 & 0.02 & 0.00 & 0.01 & 0.01 & 0.00 & 0.01 & 0.02 \\ Method \(D\) & 0.01 & 0.00 & - & 0.01 & 0.00 & - & 0.01 & 0.00 & - \\ \hline \end{tabular}
\end{table} 
Table 10: Mean, Median, SD and Maximum of the spatial differences between the skier trajectories _fixed_ solutions for method \(A_{2}\)–\(D_{2}\) and the solution of method \(A\) in the condition 10\({}^{\circ}\). XYZ represents the difference norm in 3 dimensions, XY the difference norm in the horizontal plane and Z in the vertical direction. \begin{table}
\begin{tabular}{c c c c c c c c c c} \hline  & \multicolumn{3}{c}{**Median XYZ [m]**} & \multicolumn{3}{c}{**Median XY [m]**} & \multicolumn{3}{c}{**Median Z [m]**} \\ \cline{2-10}
**Elev. Angle** & **10\({}^{\circ}\)** & **30\({}^{\circ}\)** & **40\({}^{\circ}\)** & **10\({}^{\circ}\)** & **30\({}^{\circ}\)** & **40\({}^{\circ}\)** & **10\({}^{\circ}\)** & **30\({}^{\circ}\)** & **40\({}^{\circ}\)** \\ \hline Method \(A\) & - & 0.02 & 0.05 &  
\begin{table}
\begin{tabular}{c c c c c c c c c c} \hline  & \multicolumn{3}{c}{**Mean XYZ [m]**} & \multicolumn{3}{c}{**Mean XY [m]**} & \multicolumn{3}{c}{**Mean Z [m]**} \\ \cline{2-10}
**Elev. Angle** & **10\({}^{\circ}\)** & **30\({}^{\circ}\)** & **40\({}^{\circ}\)** & **10\({}^{\circ}\)** & **30\({}^{\circ}\)** & **40\({}^{\circ}\)** & **10\({}^{\circ}\)** & **30\({}^{\circ}\)** & **40\({}^{\circ}\)** \\ \hline Method \(A\) & - & 0.01 & 0.63 & - & 0.00 & 0.19 & - & 0.01 & 0.59 \\ Method \(B\) & 0.01 & 0.44 & 3.70 & 0.00 & 0.23 & 1.06 & 0.01 & 0.33 & 3.48 \\ Method \(C\) & 0.00 & 0.08 & 0.75 & 0.00 & 0.04 & 0.25 & 0.00 & 0.07 & 0.70 \\ Method \(D\) & 0.17 & 0.89 & - & 0.10 & 0.39 & - & 0.12 & 0.76 & - \\ \hline \multicolumn{10}{c}{**Median XYZ [m]**} & \multicolumn{3}{c}{**Median XY [m]**} & \multicolumn{3}{c}{**Median Z [m]**} \\ \cline{2-10}
**Elev. Angle** & **10\({}^{\circ}\)** & **30\({}^{\circ}\)** & **40\({}^{\circ}\)** & **10\({}^{\circ}\)** & **30\({}^{\circ}\)** & **40\({}^{\circ}\)** & **10\({}^{\circ}\)** & **30\({}^{\circ}\)** & **40\({}^{\circ}\)** \\ \hline Method \(A\) & - & 0.00 & 0.00 & - & 0.00 & 0.00 & - & 0.00 & 0.00 \\ Method \(B\) & 0.00 & 0.00 & 0.89 & 0.00 & 0.00 & 2.67 & 0.00 & 0.00 & 2.51 \\ Method \(C\) & 0.00 & 0.00 & 0.00 & 0.00 & 0.00 & 0.00 & 0.00 & 0.00 & 0.00 \\ Method \(D\) & 0.00 & 0.18 & - & 0.00 & 0.47 & - & 0.00 & 0.13 & - \\ \hline \multicolumn{10}{c}{**SD XYZ [m]**} & \multicolumn{3}{c}{**SD XY [m]**} & \multicolumn{3}{c}{**SD Z [m]**} \\ \cline{2-10}
**Elev.