Усредение точек в проекции ГК

2025-12-01 09:54:22 +03:00
parent d521b6baad
commit 01871c3e13
7 changed files with 437 additions and 154 deletions
--- a/dbapp/mainapp/templates/mainapp/components/_navbar.html
+++ b/dbapp/mainapp/templates/mainapp/components/_navbar.html
@@ -40,9 +40,6 @@
                <li class="nav-item">
                    <a class="nav-link" href="{% url 'mainapp:kubsat' %}">Кубсат</a>
                </li>
-                <li class="nav-item">
-                    <a class="nav-link" href="{% url 'mainapp:points_averaging' %}">Усреднение</a>
-                </li>
                <!-- <li class="nav-item">
                    <a class="nav-link" href="{% url 'mapsapp:3dmap' %}">3D карта</a>
                </li> -->
--- a/dbapp/mainapp/templates/mainapp/points_averaging.html
+++ b/dbapp/mainapp/templates/mainapp/points_averaging.html
@@ -280,7 +280,6 @@ document.addEventListener('DOMContentLoaded', function() {
        headerWordWrap: true,
        columns: [
            {title: "Объект наблюдения", field: "source_name", minWidth: 180, widthGrow: 2},
-            {title: "Интервал", field: "interval_label", minWidth: 150, widthGrow: 1.5},
            {title: "Частота, МГц", field: "frequency", minWidth: 100, widthGrow: 1},
            {title: "Полоса, МГц", field: "freq_range", minWidth: 100, widthGrow: 1},
            {title: "Символьная скорость, БОД", field: "bod_velocity", minWidth: 120, widthGrow: 1.5},
@@ -288,20 +287,8 @@ document.addEventListener('DOMContentLoaded', function() {
            {title: "ОСШ", field: "snr", minWidth: 70, widthGrow: 0.8},
            {title: "Зеркала", field: "mirrors", minWidth: 130, widthGrow: 1.5},
            {title: "Усреднённые координаты", field: "avg_coordinates", minWidth: 150, widthGrow: 2},
+            {title: "Медианное время", field: "avg_time", minWidth: 120, widthGrow: 1},
            {title: "Кол-во точек", field: "total_points", minWidth: 80, widthGrow: 0.8, hozAlign: "center"},
-            {
-                title: "Статус", 
-                field: "status", 
-                minWidth: 120, 
-                widthGrow: 1,
-                formatter: function(cell, formatterParams, onRendered) {
-                    const data = cell.getRow().getData();
-                    if (data.has_outliers) {
-                        return `<span class="outlier-warning"><i class="bi bi-exclamation-triangle"></i> Выбросы (${data.outliers_count})</span>`;
-                    }
-                    return '<span class="text-success"><i class="bi bi-check-circle"></i> OK</span>';
-                }
-            },
            {
                title: "Действия",
                field: "actions",
@@ -504,7 +491,8 @@ document.addEventListener('DOMContentLoaded', function() {
    });
    
    // Show group details modal
-    function showGroupDetails(groupIndex) {
+    // skipShow=true means just update content without calling modal.show()
+    function showGroupDetails(groupIndex, skipShow = false) {
        currentGroupIndex = groupIndex;
        const group = allGroupsData[groupIndex];
        
@@ -637,10 +625,16 @@ document.addEventListener('DOMContentLoaded', function() {
            });
        });
        
-        // Show modal
-        const modal = new bootstrap.Modal(document.getElementById('groupDetailsModal'));
+        // Show modal - use getOrCreateInstance to avoid creating multiple instances
+        if (!skipShow) {
+            const modalElement = document.getElementById('groupDetailsModal');
+            let modal = bootstrap.Modal.getInstance(modalElement);
+            if (!modal) {
+                modal = new bootstrap.Modal(modalElement);
+            }
            modal.show();
        }
+    }
    
    // Remove point from group and recalculate
    async function removePointFromGroup(groupIndex, pointIndex) {
@@ -653,6 +647,10 @@ document.addEventListener('DOMContentLoaded', function() {
            return;
        }
        
+        if (!confirm('Удалить эту точку из выборки и пересчитать усреднение?')) {
+            return;
+        }
+        
        // Remove point
        group.points.splice(pointIndex, 1);
        
@@ -664,14 +662,12 @@ document.addEventListener('DOMContentLoaded', function() {
    async function recalculateGroup(groupIndex, includeAll) {
        const group = allGroupsData[groupIndex];
        if (!group) {
-            hideLoading();
            return;
        }
        
        // Check if there are points to process
        if (!group.points || group.points.length === 0) {
            alert('Нет точек для пересчёта');
-            hideLoading();
            return;
        }
        
@@ -694,7 +690,6 @@ document.addEventListener('DOMContentLoaded', function() {
            
            if (!response.ok) {
                alert(data.error || 'Ошибка при пересчёте');
-                hideLoading();
                return;
            }
            
@@ -705,6 +700,8 @@ document.addEventListener('DOMContentLoaded', function() {
            group.valid_points_count = data.valid_points_count;
            group.outliers_count = data.outliers_count;
            group.has_outliers = data.has_outliers;
+            group.mirrors = data.mirrors || group.mirrors;
+            group.avg_time = data.avg_time || group.avg_time;
            group.points = data.points;
            
            // Update table
@@ -716,9 +713,9 @@ document.addEventListener('DOMContentLoaded', function() {
            // Update all points table
            updateAllPointsTable();
            
-            // Update modal if open
+            // Update modal content without calling show() again
            if (currentGroupIndex === groupIndex) {
-                showGroupDetails(groupIndex);
+                showGroupDetails(groupIndex, true);
            }
            
        } catch (error) {
@@ -730,16 +727,16 @@ document.addEventListener('DOMContentLoaded', function() {
    }
    
    // Average all points button
-    document.getElementById('btn-average-all').addEventListener('click', function() {
+    document.getElementById('btn-average-all').addEventListener('click', async function() {
        if (currentGroupIndex !== null) {
-            recalculateGroup(currentGroupIndex, true);
+            await recalculateGroup(currentGroupIndex, true);
        }
    });
    
    // Average valid points button
-    document.getElementById('btn-average-valid').addEventListener('click', function() {
+    document.getElementById('btn-average-valid').addEventListener('click', async function() {
        if (currentGroupIndex !== null) {
-            recalculateGroup(currentGroupIndex, false);
+            await recalculateGroup(currentGroupIndex, false);
        }
    });
    
@@ -753,7 +750,6 @@ document.addEventListener('DOMContentLoaded', function() {
        // Prepare summary data for export
        const summaryData = allGroupsData.map(group => ({
            'Объект наблюдения': group.source_name,
-            'Интервал': group.interval_label,
            'Частота, МГц': group.frequency,
            'Полоса, МГц': group.freq_range,
            'Символьная скорость, БОД': group.bod_velocity,
@@ -761,9 +757,8 @@ document.addEventListener('DOMContentLoaded', function() {
            'ОСШ': group.snr,
            'Зеркала': group.mirrors,
            'Усреднённые координаты': group.avg_coordinates,
-            'Кол-во точек': group.total_points,
-            'Выбросов': group.outliers_count,
-            'Статус': group.has_outliers ? 'Есть выбросы' : 'OK'
+            'Медианное время': group.avg_time || '-',
+            'Кол-во точек': group.total_points
        }));
        
        // Prepare all points data for export
--- a/dbapp/mainapp/templates/mainapp/source_list.html
+++ b/dbapp/mainapp/templates/mainapp/source_list.html
@@ -98,6 +98,9 @@
                                onclick="showSelectedOnMap()">
                                <i class="bi bi-map"></i> Карта
                            </button>
+                            <a href="{% url 'mainapp:points_averaging' %}" class="btn btn-warning btn-sm" title="Усреднение точек">
+                                <i class="bi bi-calculator"></i> Усреднение
+                            </a>
                        </div>

                        <!-- Add to List Button -->
--- a/dbapp/mainapp/utils.py
+++ b/dbapp/mainapp/utils.py
@@ -7,6 +7,7 @@ from datetime import datetime, time
 # Django imports
 from django.contrib.gis.geos import Point
 from django.db.models import F
+from django.utils import timezone

 # Third-party imports
 import pandas as pd
@@ -691,6 +692,10 @@ def get_points_from_csv(file_content, current_user=None, is_automatic=False):
            "mir_1",
            "mir_2",
            "mir_3",
+            "mir_4",
+            "mir_5",
+            "mir_6",
+            "mir_7",
        ],
    )
    df[["lat", "lon", "freq", "f_range"]] = (
@@ -719,7 +724,7 @@ def get_points_from_csv(file_content, current_user=None, is_automatic=False):
            sat_name = row["sat"]
            
            # Извлекаем время для проверки дубликатов
-            timestamp = row["time"]
+            timestamp = timezone.make_aware(row["time"])
            
            # Проверяем дубликаты по координатам и времени
            if _is_duplicate_by_coords_and_time(coord_tuple, timestamp):
@@ -727,10 +732,13 @@ def get_points_from_csv(file_content, current_user=None, is_automatic=False):
                continue
            
            # Получаем или создаем объект спутника
-            sat_obj, _ = Satellite.objects.get_or_create(
-                name=sat_name, defaults={"norad": row["norad_id"]}
-            )
+            # sat_obj, _ = Satellite.objects.get_or_create(
+            #     name=sat_name, defaults={"norad": row["norad_id"]}
+            # )
            
+            sat_obj, _ = Satellite.objects.get_or_create(
+                norad=row["norad_id"], defaults={"name": sat_name}
+            )
            source = None
            
            # Если is_automatic=False, работаем с Source
@@ -784,7 +792,7 @@ def get_points_from_csv(file_content, current_user=None, is_automatic=False):
    return new_sources_count


-def _is_duplicate_by_coords_and_time(coord_tuple, timestamp, tolerance_km=0.1):
+def _is_duplicate_by_coords_and_time(coord_tuple, timestamp, tolerance_km=0.001):
    """
    Проверяет, существует ли уже ObjItem с такими же координатами и временем ГЛ.
    
@@ -934,7 +942,7 @@ def _create_objitem_from_csv_row(row, source, user_to_use, is_automatic=False):

    # Создаем Geo объект
    geo_obj, _ = Geo.objects.get_or_create(
-        timestamp=row["time"],
+        timestamp=timezone.make_aware(row["time"]),
        coords=Point(row["lon"], row["lat"], srid=4326),
        defaults={
            "is_average": False,
@@ -1259,6 +1267,162 @@ def kub_report(data_in: io.StringIO) -> pd.DataFrame:
 # Утилиты для работы с координатами
 # ============================================================================

+# Импорт pyproj для работы с проекциями
+from pyproj import CRS, Transformer
+
+
+def get_gauss_kruger_zone(longitude: float) -> int:
+    """
+    Определяет номер зоны Гаусса-Крюгера по долготе.
+    
+    Зоны ГК нумеруются от 1 до 60, каждая зона охватывает 6° долготы.
+    Центральный меридиан зоны N: (6*N - 3)°
+    
+    Args:
+        longitude: Долгота в градусах (от -180 до 180)
+        
+    Returns:
+        int: Номер зоны ГК (1-60)
+    """
+    # Нормализуем долготу к диапазону 0-360
+    lon_normalized = longitude if longitude >= 0 else longitude + 360
+    # Вычисляем номер зоны (1-60)
+    zone = int((lon_normalized + 6) / 6)
+    if zone > 60:
+        zone = 60
+    if zone < 1:
+        zone = 1
+    return zone
+
+
+def get_gauss_kruger_epsg(zone: int) -> int:
+    """
+    Возвращает EPSG код для зоны Гаусса-Крюгера (Pulkovo 1942 / Gauss-Kruger).
+    
+    EPSG коды для Pulkovo 1942 GK зон:
+    - Зона 4: EPSG:28404
+    - Зона 5: EPSG:28405
+    - ...
+    - Зона N: EPSG:28400 + N
+    
+    Args:
+        zone: Номер зоны ГК (1-60)
+        
+    Returns:
+        int: EPSG код проекции
+    """
+    return 28400 + zone
+
+
+def transform_wgs84_to_gk(coord: tuple, zone: int = None) -> tuple:
+    """
+    Преобразует координаты из WGS84 (EPSG:4326) в проекцию Гаусса-Крюгера.
+    
+    Args:
+        coord: Координаты в формате (longitude, latitude) в WGS84
+        zone: Номер зоны ГК (если None, определяется автоматически по долготе)
+        
+    Returns:
+        tuple: Координаты (x, y) в метрах в проекции ГК
+    """
+    lon, lat = coord
+    
+    if zone is None:
+        zone = get_gauss_kruger_zone(lon)
+    
+    epsg_gk = get_gauss_kruger_epsg(zone)
+    
+    # Создаём трансформер WGS84 -> GK
+    transformer = Transformer.from_crs(
+        CRS.from_epsg(4326),
+        CRS.from_epsg(epsg_gk),
+        always_xy=True
+    )
+    
+    x, y = transformer.transform(lon, lat)
+    return (x, y)
+
+
+def transform_gk_to_wgs84(coord: tuple, zone: int) -> tuple:
+    """
+    Преобразует координаты из проекции Гаусса-Крюгера в WGS84 (EPSG:4326).
+    
+    Args:
+        coord: Координаты (x, y) в метрах в проекции ГК
+        zone: Номер зоны ГК
+        
+    Returns:
+        tuple: Координаты (longitude, latitude) в WGS84
+    """
+    x, y = coord
+    epsg_gk = get_gauss_kruger_epsg(zone)
+    
+    # Создаём трансформер GK -> WGS84
+    transformer = Transformer.from_crs(
+        CRS.from_epsg(epsg_gk),
+        CRS.from_epsg(4326),
+        always_xy=True
+    )
+    
+    lon, lat = transformer.transform(x, y)
+    return (lon, lat)
+
+
+def calculate_distance_gk(coord1_gk: tuple, coord2_gk: tuple) -> float:
+    """
+    Вычисляет расстояние между двумя точками в проекции ГК (в километрах).
+    
+    Args:
+        coord1_gk: Первая точка (x, y) в метрах
+        coord2_gk: Вторая точка (x, y) в метрах
+        
+    Returns:
+        float: Расстояние в километрах
+    """
+    import math
+    x1, y1 = coord1_gk
+    x2, y2 = coord2_gk
+    distance_m = math.sqrt((x2 - x1) ** 2 + (y2 - y1) ** 2)
+    return distance_m / 1000
+
+
+def average_coords_in_gk(coords: list[tuple], zone: int = None) -> tuple:
+    """
+    Вычисляет среднее арифметическое координат в проекции Гаусса-Крюгера.
+    
+    Алгоритм:
+    1. Определяет зону ГК по первой точке (если не указана)
+    2. Преобразует все координаты в проекцию ГК
+    3. Вычисляет среднее арифметическое X и Y
+    4. Преобразует результат обратно в WGS84
+    
+    Args:
+        coords: Список координат в формате [(lon1, lat1), (lon2, lat2), ...]
+        zone: Номер зоны ГК (если None, определяется по первой точке)
+        
+    Returns:
+        tuple: Средние координаты (longitude, latitude) в WGS84
+    """
+    if not coords:
+        return (0, 0)
+    
+    if len(coords) == 1:
+        return coords[0]
+    
+    # Определяем зону по первой точке
+    if zone is None:
+        zone = get_gauss_kruger_zone(coords[0][0])
+    
+    # Преобразуем все координаты в ГК
+    coords_gk = [transform_wgs84_to_gk(c, zone) for c in coords]
+    
+    # Вычисляем среднее арифметическое
+    avg_x = sum(c[0] for c in coords_gk) / len(coords_gk)
+    avg_y = sum(c[1] for c in coords_gk) / len(coords_gk)
+    
+    # Преобразуем обратно в WGS84
+    return transform_gk_to_wgs84((avg_x, avg_y), zone)
+

 def calculate_mean_coords(coord1: tuple, coord2: tuple) -> tuple[tuple, float]:
    """
@@ -1279,6 +1443,23 @@ def calculate_mean_coords(coord1: tuple, coord2: tuple) -> tuple[tuple, float]:
    return (geod_direct['lon2'], geod_direct['lat2']), distance/1000


+def calculate_distance_wgs84(coord1: tuple, coord2: tuple) -> float:
+    """
+    Вычисляет расстояние между двумя точками в WGS84 (в километрах).
+    
+    Args:
+        coord1: Первая точка (longitude, latitude)
+        coord2: Вторая точка (longitude, latitude)
+        
+    Returns:
+        float: Расстояние в километрах
+    """
+    lon1, lat1 = coord1
+    lon2, lat2 = coord2
+    geod_inv = Geodesic.WGS84.Inverse(lat1, lon1, lat2, lon2)
+    return geod_inv['s12'] / 1000
+
+

 def calculate_average_coords_incremental(
    current_average: tuple, new_coord: tuple
--- a/dbapp/mainapp/views/points_averaging.py
+++ b/dbapp/mainapp/views/points_averaging.py
@@ -9,7 +9,18 @@ from django.views import View
 from django.utils import timezone

 from ..models import ObjItem, Satellite
-from ..utils import calculate_mean_coords, format_frequency, format_symbol_rate, format_coords_display, RANGE_DISTANCE
+from ..utils import (
+    calculate_mean_coords,
+    calculate_distance_wgs84,
+    format_frequency,
+    format_symbol_rate,
+    format_coords_display,
+    RANGE_DISTANCE,
+    get_gauss_kruger_zone,
+    transform_wgs84_to_gk,
+    transform_gk_to_wgs84,
+    average_coords_in_gk,
+)


 class PointsAveragingView(LoginRequiredMixin, View):
@@ -117,7 +128,8 @@ class PointsAveragingAPIView(LoginRequiredMixin, View):
            if not objitem.geo_obj or not objitem.geo_obj.timestamp:
                continue
            
-            timestamp = objitem.geo_obj.timestamp
+            timestamp = timezone.localtime(objitem.geo_obj.timestamp)
+            # timestamp = objitem.geo_obj.timestamp
            source_name = objitem.name or f"Объект #{objitem.id}"
            
            # Determine interval
@@ -177,6 +189,7 @@ class PointsAveragingAPIView(LoginRequiredMixin, View):
        
        # Collect coordinates and build points_data
        points_data = []
+        timestamp_objects = []  # Store datetime objects separately
        
        for objitem in points:
            geo = objitem.geo_obj
@@ -191,9 +204,14 @@ class PointsAveragingAPIView(LoginRequiredMixin, View):
            
            # Format timestamp
            timestamp_str = '-'
+            timestamp_unix = None
            if geo.timestamp:
                local_time = timezone.localtime(geo.timestamp)
                timestamp_str = local_time.strftime("%d.%m.%Y %H:%M")
+                timestamp_unix = geo.timestamp.timestamp()
+                timestamp_objects.append(geo.timestamp)
+            else:
+                timestamp_objects.append(None)
            
            points_data.append({
                'id': objitem.id,
@@ -204,6 +222,7 @@ class PointsAveragingAPIView(LoginRequiredMixin, View):
                'modulation': param.modulation.name if param and param.modulation else '-',
                'snr': f"{param.snr:.0f}" if param and param.snr else '-',
                'timestamp': timestamp_str,
+                'timestamp_unix': timestamp_unix,
                'mirrors': mirrors,
                'location': geo.location or '-',
                'coordinates': format_coords_display(geo.coords),
@@ -221,7 +240,7 @@ class PointsAveragingAPIView(LoginRequiredMixin, View):
        
        for i, point_data in enumerate(points_data):
            coord = point_data['coord_tuple']
-            _, distance = calculate_mean_coords(avg_coord, coord)
+            distance = calculate_distance_wgs84(avg_coord, coord)
            point_data['distance_from_avg'] = round(distance, 2)
            
            if i in valid_indices:
@@ -241,6 +260,43 @@ class PointsAveragingAPIView(LoginRequiredMixin, View):
        # Get common parameters from first valid point (or first point if no valid)
        first_point = valid_points[0] if valid_points else (points_data[0] if points_data else {})
        
+        # Collect all unique mirrors from valid points
+        all_mirrors = set()
+        for point in valid_points:
+            mirrors_str = point.get('mirrors', '-')
+            if mirrors_str and mirrors_str != '-':
+                # Split by comma and add each mirror
+                for mirror in mirrors_str.split(','):
+                    mirror = mirror.strip()
+                    if mirror and mirror != '-':
+                        all_mirrors.add(mirror)
+        
+        combined_mirrors = ', '.join(sorted(all_mirrors)) if all_mirrors else '-'
+        
+        # Calculate median time from valid points using timestamp_objects array
+        valid_timestamps = []
+        for i in valid_indices:
+            if timestamp_objects[i]:
+                valid_timestamps.append(timestamp_objects[i])
+        
+        median_time_str = '-'
+        if valid_timestamps:
+            # Sort timestamps and get median
+            sorted_timestamps = sorted(valid_timestamps, key=lambda ts: ts.timestamp())
+            n = len(sorted_timestamps)
+            
+            if n % 2 == 1:
+                # Odd number of timestamps - take middle one
+                median_datetime = sorted_timestamps[n // 2]
+            else:
+                # Even number of timestamps - take average of two middle ones
+                mid1 = sorted_timestamps[n // 2 - 1]
+                mid2 = sorted_timestamps[n // 2]
+                avg_seconds = (mid1.timestamp() + mid2.timestamp()) / 2
+                median_datetime = datetime.fromtimestamp(avg_seconds, tz=mid1.tzinfo)
+            
+            median_time_str = timezone.localtime(median_datetime).strftime("%d.%m.%Y %H:%M")
+        
        return {
            'source_name': source_name,
            'interval_key': interval_key,
@@ -251,12 +307,13 @@ class PointsAveragingAPIView(LoginRequiredMixin, View):
            'has_outliers': len(outliers) > 0,
            'avg_coordinates': avg_coords_str,
            'avg_coord_tuple': avg_coord,
+            'avg_time': median_time_str,
            'frequency': first_point.get('frequency', '-'),
            'freq_range': first_point.get('freq_range', '-'),
            'bod_velocity': first_point.get('bod_velocity', '-'),
            'modulation': first_point.get('modulation', '-'),
            'snr': first_point.get('snr', '-'),
-            'mirrors': first_point.get('mirrors', '-'),
+            'mirrors': combined_mirrors,
            'points': points_data,
            'outliers': outliers,
            'valid_points': valid_points,
@@ -265,13 +322,12 @@ class PointsAveragingAPIView(LoginRequiredMixin, View):
    def _find_cluster_center(self, points_data):
        """
        Find cluster center using the following algorithm:
-        1. Find first pair of points within 56 km of each other
-        2. Calculate their average as initial center
-        3. Iteratively add points within 56 km of current average
+        1. Take the first point as reference
+        2. Find all points within 56 km of the first point
+        3. Calculate average of all found points using Gauss-Kruger projection
        4. Return final average and indices of valid points
        
        If only 1 point, return it as center.
-        If no pair found within 56 km, use first point as center.
        
        Returns:
            tuple: (avg_coord, set of valid point indices)
@@ -282,69 +338,46 @@ class PointsAveragingAPIView(LoginRequiredMixin, View):
        if len(points_data) == 1:
            return points_data[0]['coord_tuple'], {0}
        
-        # Step 1: Find first pair of points within 56 km
-        initial_pair = None
-        for i in range(len(points_data)):
-            for j in range(i + 1, len(points_data)):
+        # Step 1: Take first point as reference
+        first_coord = points_data[0]['coord_tuple']
+        valid_indices = {0}
+        
+        # Step 2: Find all points within 56 km of the first point
+        for i in range(1, len(points_data)):
            coord_i = points_data[i]['coord_tuple']
-                coord_j = points_data[j]['coord_tuple']
-                _, distance = calculate_mean_coords(coord_i, coord_j)
+            distance = calculate_distance_wgs84(first_coord, coord_i)
            
            if distance <= RANGE_DISTANCE:
-                    initial_pair = (i, j)
-                    break
-            if initial_pair:
-                break
+                valid_indices.add(i)
        
-        # If no pair found within 56 km, use first point as center
-        if not initial_pair:
-            # All points are outliers except the first one
-            return points_data[0]['coord_tuple'], {0}
-        
-        # Step 2: Calculate initial average from the pair
-        i, j = initial_pair
-        coord_i = points_data[i]['coord_tuple']
-        coord_j = points_data[j]['coord_tuple']
-        avg_coord, _ = calculate_mean_coords(coord_i, coord_j)
-        
-        valid_indices = {i, j}
-        
-        # Step 3: Iteratively add points within 56 km of current average
-        # Keep iterating until no new points are added
-        changed = True
-        while changed:
-            changed = False
-            for k in range(len(points_data)):
-                if k in valid_indices:
-                    continue
-                
-                coord_k = points_data[k]['coord_tuple']
-                _, distance = calculate_mean_coords(avg_coord, coord_k)
-                
-                if distance <= RANGE_DISTANCE:
-                    # Add point to cluster and recalculate average
-                    valid_indices.add(k)
-                    
-                    # Recalculate average with all valid points
+        # Step 3: Calculate average of all valid points using Gauss-Kruger projection
        avg_coord = self._calculate_average_from_indices(points_data, valid_indices)
-                    changed = True
        
        return avg_coord, valid_indices
    
    def _calculate_average_from_indices(self, points_data, indices):
        """
        Calculate average coordinate from points at given indices.
-        Uses incremental averaging.
+        Uses arithmetic averaging in Gauss-Kruger projection.
+        
+        Algorithm:
+        1. Determine GK zone from the first point
+        2. Transform all coordinates to GK projection
+        3. Calculate arithmetic mean of X and Y
+        4. Transform result back to WGS84
        """
        indices_list = sorted(indices)
        if not indices_list:
            return (0, 0)
        
-        avg_coord = points_data[indices_list[0]]['coord_tuple']
+        if len(indices_list) == 1:
+            return points_data[indices_list[0]]['coord_tuple']
        
-        for idx in indices_list[1:]:
-            coord = points_data[idx]['coord_tuple']
-            avg_coord, _ = calculate_mean_coords(avg_coord, coord)
+        # Collect coordinates for averaging
+        coords = [points_data[idx]['coord_tuple'] for idx in indices_list]
+        
+        # Use Gauss-Kruger projection for averaging
+        avg_coord = average_coords_in_gk(coords)
        
        return avg_coord

@@ -368,9 +401,14 @@ class RecalculateGroupAPIView(LoginRequiredMixin, View):
        if not points:
            return JsonResponse({'error': 'No points provided'}, status=400)
        
-        # If include_all is True, recalculate with all points using clustering algorithm
-        # If include_all is False, use only non-outlier points
-        if not include_all:
+        # If include_all is True, average ALL points without clustering (no outliers)
+        # If include_all is False, use only non-outlier points and apply clustering
+        if include_all:
+            # Average all points - no outliers, all points are valid
+            avg_coord = self._calculate_average_from_indices(points, set(range(len(points))))
+            valid_indices = set(range(len(points)))
+        else:
+            # Filter out outliers first
            points = [p for p in points if not p.get('is_outlier', False)]
            
            if not points:
@@ -382,7 +420,7 @@ class RecalculateGroupAPIView(LoginRequiredMixin, View):
        # Mark outliers and calculate distances
        for i, point in enumerate(points):
            coord = tuple(point['coord_tuple'])
-            _, distance = calculate_mean_coords(avg_coord, coord)
+            distance = calculate_distance_wgs84(avg_coord, coord)
            point['distance_from_avg'] = round(distance, 2)
            point['is_outlier'] = i not in valid_indices
        
@@ -396,6 +434,44 @@ class RecalculateGroupAPIView(LoginRequiredMixin, View):
        outliers = [p for p in points if p.get('is_outlier', False)]
        valid_points = [p for p in points if not p.get('is_outlier', False)]
        
+        # Collect all unique mirrors from valid points
+        all_mirrors = set()
+        for point in valid_points:
+            mirrors_str = point.get('mirrors', '-')
+            if mirrors_str and mirrors_str != '-':
+                for mirror in mirrors_str.split(','):
+                    mirror = mirror.strip()
+                    if mirror and mirror != '-':
+                        all_mirrors.add(mirror)
+        
+        combined_mirrors = ', '.join(sorted(all_mirrors)) if all_mirrors else '-'
+        
+        # Calculate median time from valid points using timestamp_unix
+        valid_timestamps_unix = []
+        for point in valid_points:
+            if point.get('timestamp_unix'):
+                valid_timestamps_unix.append(point['timestamp_unix'])
+        
+        median_time_str = '-'
+        if valid_timestamps_unix:
+            from datetime import datetime
+            # Sort timestamps and get median
+            sorted_timestamps = sorted(valid_timestamps_unix)
+            n = len(sorted_timestamps)
+            
+            if n % 2 == 1:
+                # Odd number of timestamps - take middle one
+                median_unix = sorted_timestamps[n // 2]
+            else:
+                # Even number of timestamps - take average of two middle ones
+                mid1 = sorted_timestamps[n // 2 - 1]
+                mid2 = sorted_timestamps[n // 2]
+                median_unix = (mid1 + mid2) / 2
+            
+            # Convert Unix timestamp to datetime
+            median_datetime = datetime.fromtimestamp(median_unix, tz=timezone.get_current_timezone())
+            median_time_str = timezone.localtime(median_datetime).strftime("%d.%m.%Y %H:%M")
+        
        return JsonResponse({
            'success': True,
            'avg_coordinates': avg_coords_str,
@@ -404,15 +480,17 @@ class RecalculateGroupAPIView(LoginRequiredMixin, View):
            'valid_points_count': len(valid_points),
            'outliers_count': len(outliers),
            'has_outliers': len(outliers) > 0,
+            'mirrors': combined_mirrors,
+            'avg_time': median_time_str,
            'points': points,
        })
    
    def _find_cluster_center(self, points):
        """
        Find cluster center using the following algorithm:
-        1. Find first pair of points within 56 km of each other
-        2. Calculate their average as initial center
-        3. Iteratively add points within 56 km of current average
+        1. Take the first point as reference
+        2. Find all points within 56 km of the first point
+        3. Calculate average of all found points using Gauss-Kruger projection
        4. Return final average and indices of valid points
        """
        if len(points) == 0:
@@ -421,60 +499,39 @@ class RecalculateGroupAPIView(LoginRequiredMixin, View):
        if len(points) == 1:
            return tuple(points[0]['coord_tuple']), {0}
        
-        # Step 1: Find first pair of points within 56 km
-        initial_pair = None
-        for i in range(len(points)):
-            for j in range(i + 1, len(points)):
+        # Step 1: Take first point as reference
+        first_coord = tuple(points[0]['coord_tuple'])
+        valid_indices = {0}
+        
+        # Step 2: Find all points within 56 km of the first point
+        for i in range(1, len(points)):
            coord_i = tuple(points[i]['coord_tuple'])
-                coord_j = tuple(points[j]['coord_tuple'])
-                _, distance = calculate_mean_coords(coord_i, coord_j)
+            distance = calculate_distance_wgs84(first_coord, coord_i)
            
            if distance <= RANGE_DISTANCE:
-                    initial_pair = (i, j)
-                    break
-            if initial_pair:
-                break
+                valid_indices.add(i)
        
-        # If no pair found within 56 km, use first point as center
-        if not initial_pair:
-            return tuple(points[0]['coord_tuple']), {0}
-        
-        # Step 2: Calculate initial average from the pair
-        i, j = initial_pair
-        coord_i = tuple(points[i]['coord_tuple'])
-        coord_j = tuple(points[j]['coord_tuple'])
-        avg_coord, _ = calculate_mean_coords(coord_i, coord_j)
-        
-        valid_indices = {i, j}
-        
-        # Step 3: Iteratively add points within 56 km of current average
-        changed = True
-        while changed:
-            changed = False
-            for k in range(len(points)):
-                if k in valid_indices:
-                    continue
-                
-                coord_k = tuple(points[k]['coord_tuple'])
-                _, distance = calculate_mean_coords(avg_coord, coord_k)
-                
-                if distance <= RANGE_DISTANCE:
-                    valid_indices.add(k)
+        # Step 3: Calculate average of all valid points using Gauss-Kruger projection
        avg_coord = self._calculate_average_from_indices(points, valid_indices)
-                    changed = True
        
        return avg_coord, valid_indices
    
    def _calculate_average_from_indices(self, points, indices):
-        """Calculate average coordinate from points at given indices."""
+        """
+        Calculate average coordinate from points at given indices.
+        Uses arithmetic averaging in Gauss-Kruger projection.
+        """
        indices_list = sorted(indices)
        if not indices_list:
            return (0, 0)
        
-        avg_coord = tuple(points[indices_list[0]]['coord_tuple'])
+        if len(indices_list) == 1:
+            return tuple(points[indices_list[0]]['coord_tuple'])
        
-        for idx in indices_list[1:]:
-            coord = tuple(points[idx]['coord_tuple'])
-            avg_coord, _ = calculate_mean_coords(avg_coord, coord)
+        # Collect coordinates for averaging
+        coords = [tuple(points[idx]['coord_tuple']) for idx in indices_list]
+        
+        # Use Gauss-Kruger projection for averaging
+        avg_coord = average_coords_in_gk(coords)
        
        return avg_coord
--- a/dbapp/pyproject.toml
+++ b/dbapp/pyproject.toml
@@ -30,6 +30,7 @@ dependencies = [
    "pandas>=2.3.3",
    "psycopg>=3.2.10",
    "psycopg2-binary>=2.9.11",
+    "pyproj>=3.6.0",
    "redis>=6.4.0",
    "django-redis>=5.4.0",
    "requests>=2.32.5",
--- a/dbapp/uv.lock
+++ b/dbapp/uv.lock
@@ -312,6 +312,7 @@ dependencies = [
    { name = "pandas" },
    { name = "psycopg" },
    { name = "psycopg2-binary" },
+    { name = "pyproj" },
    { name = "redis" },
    { name = "requests" },
    { name = "selenium" },
@@ -347,6 +348,7 @@ requires-dist = [
    { name = "pandas", specifier = ">=2.3.3" },
    { name = "psycopg", specifier = ">=3.2.10" },
    { name = "psycopg2-binary", specifier = ">=2.9.11" },
+    { name = "pyproj", specifier = ">=3.6.0" },
    { name = "redis", specifier = ">=6.4.0" },
    { name = "requests", specifier = ">=2.32.5" },
    { name = "selenium", specifier = ">=4.38.0" },
@@ -938,6 +940,53 @@ wheels = [
    { url = "https://files.pythonhosted.org/packages/a0/e3/59cd50310fc9b59512193629e1984c1f95e5c8ae6e5d8c69532ccc65a7fe/pycparser-2.23-py3-none-any.whl", hash = "sha256:e5c6e8d3fbad53479cab09ac03729e0a9faf2bee3db8208a550daf5af81a5934", size = 118140, upload-time = "2025-09-09T13:23:46.651Z" },
 ]

+[[package]]
+name = "pyproj"
+version = "3.7.2"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "certifi" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/04/90/67bd7260b4ea9b8b20b4f58afef6c223ecb3abf368eb4ec5bc2cdef81b49/pyproj-3.7.2.tar.gz", hash = "sha256:39a0cf1ecc7e282d1d30f36594ebd55c9fae1fda8a2622cee5d100430628f88c", size = 226279, upload-time = "2025-08-14T12:05:42.18Z" }
+wheels = [
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+    { url = "https://files.pythonhosted.org/packages/35/48/da9a45b184d375f62667f62eba0ca68569b0bd980a0bb7ffcc1d50440520/pyproj-3.7.2-cp313-cp313-macosx_14_0_arm64.whl", hash = "sha256:c79b9b84c4a626c5dc324c0d666be0bfcebd99f7538d66e8898c2444221b3da7", size = 4615388, upload-time = "2025-08-14T12:04:30.553Z" },
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