diff --git a/dbapp/mainapp/templates/mainapp/components/_navbar.html b/dbapp/mainapp/templates/mainapp/components/_navbar.html
index 9040d1b..c7848a3 100644
--- a/dbapp/mainapp/templates/mainapp/components/_navbar.html
+++ b/dbapp/mainapp/templates/mainapp/components/_navbar.html
@@ -32,7 +32,7 @@
                     <a class="nav-link" href="{% url 'mainapp:actions' %}">Действия</a>
                 </li>
                 <li class="nav-item">
-                    <a class="nav-link" href="{% url 'mainapp:object_marks' %}">Отметки</a>
+                    <a class="nav-link" href="{% url 'mainapp:object_marks' %}">Наличие сигнала</a>
                 </li>
                 <li class="nav-item">
                     <a class="nav-link" href="{% url 'mapsapp:3dmap' %}">3D карта</a>
diff --git a/dbapp/mainapp/templates/mainapp/object_marks.html b/dbapp/mainapp/templates/mainapp/object_marks.html
index a69c486..26fbc75 100644
--- a/dbapp/mainapp/templates/mainapp/object_marks.html
+++ b/dbapp/mainapp/templates/mainapp/object_marks.html
@@ -150,6 +150,7 @@
                         <tr data-source-id="{{ source.id }}">
                             <td class="source-info-cell" rowspan="{{ marks.count }}">
                                 <div><strong>ID:</strong> {{ source.id }}</div>
+                                <div><strong>Имя объекта:</strong> {{ source.objitem_name }}</div>
                                 <div><strong>Дата создания:</strong> {{ source.created_at|date:"d.m.Y H:i" }}</div>
                                 <div><strong>Кол-во объектов:</strong> {{ source.source_objitems.count }}</div>
                                 {% if source.coords_average %}
@@ -218,6 +219,7 @@
                         <tr data-source-id="{{ source.id }}">
                             <td class="source-info-cell">
                                 <div><strong>ID:</strong> {{ source.id }}</div>
+                                <div><strong>Имя объекта:</strong> {{ source.objitem_name }}</div>
                                 <div><strong>Дата создания:</strong> {{ source.created_at|date:"d.m.Y H:i" }}</div>
                                 <div><strong>Кол-во объектов:</strong> {{ source.source_objitems.count }}</div>
                                 {% if source.coords_average %}
diff --git a/dbapp/mainapp/views/api.py b/dbapp/mainapp/views/api.py
index 9c02782..b68fef0 100644
--- a/dbapp/mainapp/views/api.py
+++ b/dbapp/mainapp/views/api.py
@@ -209,7 +209,10 @@ class SourceObjItemsAPIView(LoginRequiredMixin, View):
             if geo_date_from:
                 try:
                     geo_date_from_obj = datetime.strptime(geo_date_from, "%Y-%m-%d")
-                    objitems = objitems.filter(geo_obj__timestamp__gte=geo_date_from_obj)
+                    objitems = objitems.filter(
+                        geo_obj__isnull=False,
+                        geo_obj__timestamp__gte=geo_date_from_obj
+                    )
                 except (ValueError, TypeError):
                     pass
             
@@ -218,7 +221,10 @@ class SourceObjItemsAPIView(LoginRequiredMixin, View):
                     geo_date_to_obj = datetime.strptime(geo_date_to, "%Y-%m-%d")
                     # Add one day to include entire end date
                     geo_date_to_obj = geo_date_to_obj + timedelta(days=1)
-                    objitems = objitems.filter(geo_obj__timestamp__lt=geo_date_to_obj)
+                    objitems = objitems.filter(
+                        geo_obj__isnull=False,
+                        geo_obj__timestamp__lt=geo_date_to_obj
+                    )
                 except (ValueError, TypeError):
                     pass
             
diff --git a/dbapp/mainapp/views/marks.py b/dbapp/mainapp/views/marks.py
index ba899b4..67d810e 100644
--- a/dbapp/mainapp/views/marks.py
+++ b/dbapp/mainapp/views/marks.py
@@ -46,13 +46,19 @@ class ObjectMarksListView(LoginRequiredMixin, ListView):
         context['satellites'] = Satellite.objects.all().order_by('name')
         
         # Добавить информацию о возможности редактирования для каждой отметки
+        # и получить имя первого объекта для каждого источника
         for source in context['sources']:
+            # Получить имя первого объекта
+            first_objitem = source.source_objitems.first()
+            source.objitem_name = first_objitem.name if first_objitem and first_objitem.name else '-'
+            
             for mark in source.marks.all():
                 mark.editable = mark.can_edit()
         
         return context
 
 
+
 class AddObjectMarkView(LoginRequiredMixin, View):
     """
     API endpoint для добавления отметки источника.