diff --git a/src/ctfindvar/ctfindvar.cpp b/src/ctfindvar/ctfindvar.cpp
index 03ebdcb..dbb97ca 100644
--- a/src/ctfindvar/ctfindvar.cpp
+++ b/src/ctfindvar/ctfindvar.cpp
@@ -312,51 +312,6 @@ void ctfindvar::save(void)
 }
 
 
-/***********************************************************************//**
- * @brief Get the map index associated with a given time
- *
- * @param[in] time Time
- * @return Index of map in counts cube
- ***************************************************************************/
-int ctfindvar::time2inx(const GTime& time)
-{
-    // Set default return value
-    int map_index = -1;
-
-    // Loop over all GTIs
-    for (int i = 0; i < m_gti.size(); ++i) {
-
-        // If interval contains the time then break
-        if (m_gti[i].contains(time)) {
-            map_index = i;
-            break;
-        }
-
-    }
-
-    // Return map index
-    return map_index;
-}
-
-
-/***********************************************************************//**
- * @brief Return Good Time Interval for index
- *
- * @param[in] index Index
- * @return Good Time Interval
- ***************************************************************************/
-GGti ctfindvar::inx2gti(const int& index)
-{
-    // Throw an exception if index is invalid
-    if ((index < 0) || (index >= m_gti.size())) {
-        throw GException::out_of_range(G_INX2GTI, "Time index", index, m_gti.size());
-    }
-
-    // Return Good Time Interval
-    return m_gti[index];
-}
-
-
 /*==========================================================================
  =                                                                         =
  =                             Private methods                             =
@@ -1428,3 +1383,30 @@ void ctfindvar::write_source_histograms(GFits& fits)
     // Return
     return;
 }
+
+
+/***********************************************************************//**
+ * @brief Get the map index associated with a given time
+ *
+ * @param[in] time Time
+ * @return Index of map in counts cube
+ ***************************************************************************/
+int ctfindvar::time2inx(const GTime& time) const
+{
+    // Set default return value
+    int map_index = -1;
+
+    // Loop over all GTIs
+    for (int i = 0; i < m_gti.size(); ++i) {
+
+        // If interval contains the time then break
+        if (m_gti[i].contains(time)) {
+            map_index = i;
+            break;
+        }
+
+    }
+
+    // Return map index
+    return map_index;
+}
diff --git a/src/ctfindvar/ctfindvar.hpp b/src/ctfindvar/ctfindvar.hpp
index 08c18ab..6e4ffff 100644
--- a/src/ctfindvar/ctfindvar.hpp
+++ b/src/ctfindvar/ctfindvar.hpp
@@ -1,7 +1,7 @@
 /***************************************************************************
  *                ctfindvar - Time variability search tool                 *
  * ----------------------------------------------------------------------- *
- *  copyright (C) 2018 by Simon Bonnefoy                                   *
+ *  copyright (C) 2018-2019 by Simon Bonnefoy                              *
  * ----------------------------------------------------------------------- *
  *                                                                         *
  *  This program is free software: you can redistribute it and/or modify   *
@@ -61,11 +61,6 @@ public:
     void run(void);
     void save(void);
 
-    // Get the information on the time interval from 
-    int            time2inx(const GTime& time);
-    GGti           inx2gti(const int& indx);
-    const GSkyMap& counts(void);
-
 protected:
     // Protected methods
     void                init_members(void);
@@ -84,6 +79,7 @@ protected:
     GTime               get_tstop(void);
     GModelSky           sky_model(const GSkyDir& dir) const;
     void                write_source_histograms(GFits& fits);
+    int                 time2inx(const GTime& time) const;
 
     // Protected members
     GSkyMap           m_counts;          //!< Counts for each time interval
@@ -103,17 +99,4 @@ protected:
 
 };
 
-
-/***********************************************************************//**
- * @brief Return reference to significance cube object
- * 
- * @return Reference to counts cube
- ***************************************************************************/
-inline
-const GSkyMap& ctfindvar::counts(void)
-{
-    return m_counts;
-}
-
-
 #endif /* CTFINDVAR_HPP */