Additionally , since this AO system provides an excellent and stable correction -LRB- angular resolution of NUMBER@1 arcsec in K band -RRB- , a 15-km moonlet at NUMBER@2 km of PERSON@1 's primary was detected .

Additionally , since this AO system provides an excellent and stable correction -LRB- angular resolution of NUMBER@1 arcsec in K band -RRB- , a 15-km moon at NUMBER@2 km from PERSON@1 was found .
