Index: trunk/archive/pslib/include/psDateTime.h
===================================================================
--- trunk/archive/pslib/include/psDateTime.h	(revision 256)
+++ trunk/archive/pslib/include/psDateTime.h	(revision 257)
@@ -11,9 +11,13 @@
  */
 
-/** Get current MJD, for a timestamp */
+/** \addtogroup AstroGroup Astronomy-Specific Utilities
+ *  \{
+ */
+
+/** Get current MJD, for a timestamp \ingroup AstroGroup */
 double
 psGetMJD(void);
 
-/** Get current sidereal time at longitude */
+/** Get current sidereal time at longitude \ingroup AstroGroup */
 double
 psGetSidereal(float mjd,		//!< MJD
@@ -53,5 +57,5 @@
 
 /***** convert to psTime *****/
-/** Convert ISOTime (Human-readable date/time string YYYY/MM/DD,HH:MM:SS.SSS) to psTime */
+/** Convert ISOTime (Human-readable date/time string YYYY/MM/DD,HH:MM:SS.SSS) to psTime \ingroup AstroGroup */
 psTime *
 psISOTimeToTime (char *input)		//!< Input ISOTime time
@@ -83,4 +87,6 @@
 ;
 
+/* \} end of AstroGroup */
+
 #endif