I have downloaded Landsat 8 OLI TIRS collection 1 level 2 data. I know that Level2 has been converted from DNs to TOA reflectance already. However, when I open it in ArcMap, Band 1 and 2 have values between -2000 to 5000, while the other 5 bands have ranges of 30-16000. Any idea why bands 1 and 2 have negative values?

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