Wrong Mosaic result

I tried to mosaick some Sentinel-3 level1 tiles to one image, but get wrong result. troubleshoot traces into one tile that causes the issue.

The steps of the image been processed are: download the raw S3 L1 file tile --> unzip --> open in SNAP --> subset AOI --> “FLH/mci processor” --> mosaic (single tile) , and show the wrong result below:

1.input tile for mosaic (with a lake boundary correctly drapped on):

2.result after mosaic (notice the missing part in the middle of the lake):

it is weird because I only use ONE tile for mosaic, and I expect the result should be the same as input.

the following are some auxiliary info that may be helpful to understand the issue:

  1. the geo-code info of the input tile:

  2. the params used for mosaic:

    <crs>PROJCS["NAD83 / Great Lakes Albers", 
        DATUM["North American Datum 1983", 
          SPHEROID["GRS 1980", 6378137.0, 298.257222101, AUTHORITY["EPSG","7019"]], 
          TOWGS84[0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0], 
        PRIMEM["Greenwich", 0.0, AUTHORITY["EPSG","8901"]], 
        UNIT["degree", 0.017453292519943295], 
        AXIS["Geodetic longitude", EAST], 
        AXIS["Geodetic latitude", NORTH], 
      PROJECTION["Albers_Conic_Equal_Area", AUTHORITY["EPSG","9822"]], 
      PARAMETER["central_meridian", -84.45595499999999], 
      PARAMETER["latitude_of_origin", 45.568977], 
      PARAMETER["standard_parallel_1", 42.122773999999986], 
      PARAMETER["false_easting", 1000000.0], 
      PARAMETER["false_northing", 1000000.0], 
      PARAMETER["standard_parallel_2", 49.015179999999994], 
      UNIT["m", 1.0], 
      AXIS["Easting", EAST], 
      AXIS["Northing", NORTH], 
    <elevationModelName>SRTM 1Sec HGT</elevationModelName>

change output image projection does not change this wrong result.

  1. output image geo-code

I upload the tile raw file here: https://drive.google.com/file/d/1efvKIuyqZeOXqgs7Z0EvicVyfY82QhNl/view?usp=sharing

Any help or comments are appreciated!

Chui Zeng

For mosaicing you need to have at least two scenes (i.e. side by side). What is your final target?

thank you for the feedback. yes typical mosaic involves 2 or more scenes. I troubleshoot here so only input one scenes, as 2+ scenes reported the same error.
my final target to find the cause of this mosaic error.