Moonlet with extremely low albedo

Looking at these pics, you'd think you're looking at an averabe beige moon's night side in E: D.
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But no, it is actually high noon on the moonlet (188 km radius metal-rich body), which is orbiting its parent planet some 389 Ls away from a B8 IIIAB star (2.4679 solar radii and 13393 K surface temp)!
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As you can see from the SRV tracks, the surface dust absorbs visible light very well:
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I this pic (click it to see it bigger, eventually you end with the original 4k png image) the brightest rock is a Bronzite Chondrite, which is usually pretty much black (left bottom quarter of the pic, left of big boulder):


Wondering how low albedo this moonlet has. As a comparison, the Moon's albedo is around 0.136, and it looks pretty bright while reflecting much dimmer & cooler star's light further away from the star.

Dayside view at approach:
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