Update ObsCoreExtensionForRadioData.tex

typo in tracking_type

Author: loumir

ObsCoreExtensionForRadioData.tex

@@ -468,7 +468,7 @@ \subsection{observational configuration and instrumental parameters}
 these modes. We include the same term here in the extension. The two 
 possible values for radio astronomy data are the following:
 \begin{itemize}
-	\item Sidereal : observations pointed on a fixed targeti, as defined in 
+	\item Sidereal : observations pointed on a fixed target, as defined in 
 		ObsLocTAP
 	\item Fixed-az-el-transit : observations fixed on a given elevation 
 		and azimuth, as in ObsLocTAP