- FIX: Fix several issues with S2 STAC products:

  - Add missing `_has_mask` method
  - Fix `get_mean_sun_angles` and imports for MPC products

Author: remi-braun

CHANGES.md

@@ -8,6 +8,9 @@
 - FIX: Get correct buffer for windows in geographic CRS when subsetting SAR data
 - FIX: Fix SNAP fallback issue
 - FIX: Workaround for calibration polarisation issue: don't specify any polarisation in case of single-polarisation product.
+- FIX: Fix several issues with S2 STAC products:
+  - Add missing `_has_mask` method
+  - Fix `get_mean_sun_angles` and imports for MPC products
 - DOC: Update copyright to 2026
 
 ## 0.23.0 (2026-01-02)

eoreader/products/optical/s2_e84_product.py

@@ -236,6 +236,27 @@ def _get_path(self, file_id: str, ext: str = "tif") -> AnyPathType:
         """
         return self._glob(f"*{file_id}.{ext}", as_rio_path=True)
 
+    def _has_mask(self, mask: BandNames) -> bool:
+        """
+        Can the specified mask be loaded from this product?
+
+        .. code-block:: python
+
+            >>> from eoreader.reader import Reader
+            >>> from eoreader.bands import *
+            >>> path = r"S2A_MSIL1C_20200824T110631_N0209_R137_T30TTK_20200824T150432.SAFE.zip"
+            >>> prod = Reader().open(path)
+            >>> prod.has_index(DETFOO)
+            True
+
+        Args:
+            mask (BandNames): Mask
+
+        Returns:
+            bool: True if the specified mask is provided by the current product
+        """
+        return False
+
     def open_mask(
         self, pixel_size: float = None, size: list | tuple = None, **kwargs
     ) -> xr.DataArray:

eoreader/products/optical/s2_mpc_product.py

@@ -26,6 +26,7 @@
 
 from eoreader import EOREADER_NAME, cache
 from eoreader.bands import BandNames
+from eoreader.exceptions import InvalidProductError
 from eoreader.products import S2E84Product
 from eoreader.products.optical.optical_product import RawUnits
 from eoreader.products.stac_product import StacProduct
@@ -188,3 +189,30 @@ def get_quicklook_path(self) -> str:
             str: Quicklook path
         """
         return self._get_path("rendered_preview")
+
+    @cache
+    def get_mean_sun_angles(self) -> (float, float):
+        """
+        Get Mean Sun angles (Azimuth and Zenith angles)
+
+        .. code-block:: python
+
+            >>> from eoreader.reader import Reader
+            >>> path = r"LC08_L1GT_023030_20200518_20200527_01_T2.SAFE.zip"
+            >>> prod = Reader().open(path)
+            >>> prod.get_mean_sun_angles()
+            (140.80752656, 61.93065805)
+
+        Returns:
+            (float, float): Mean Azimuth and Zenith angle
+        """
+        # Retrieve angles
+        try:
+            azimuth_angle = self.stac_mtd["properties"]["s2:mean_solar_azimuth"]
+            zenith_angle = self.stac_mtd["properties"]["s2:mean_solar_zenith"]
+        except IndexError as exc:
+            raise InvalidProductError(
+                "mean_solar_azimuth or mean_solar_zenith not found in metadata!"
+            ) from exc
+
+        return azimuth_angle, zenith_angle