We report new photometric lightcurve observations of the Lucy Mission target (11351) Leucus acquired during the 2017, 2018, and 2019 apparitions. We use these data in combination with stellar occultations captured during five epochs to determine the sidereal rotation period, the spin axis orientation, a convex shape model, the absolute scale of the object, its geometric albedo, and a model of the photometric properties of the target. We find that Leucus is a prograde rotator with a spin axis located within a sky-projected radius of 3(1σ) from J2000 Ecliptic coordinates (λ=208, β=+77) or J2000 Equatorial Coordinates (R.A.=248, decl.=+58). The sidereal period is refined to P _sid=445.6830.007 h. The convex shape model is irregular, with maximum dimensions of 60.8, 39.1, and 27.8 km. The convex model accounts for global features of the occultation silhouettes, although minor deviations suggest that local and global concavities are present. We determine a geometric albedo of p _V =0.0430.002. The derived phase curve supports a D-type classification for Leucus.

我们报告了2017年，2018年和2019年幻影中获得的露西任务目标（11351）Leucus的新光度光曲线观测结果。我们将这些数据与五个纪元期间捕获的恒星掩星结合使用，以确定恒星旋转周期，自旋轴方向，凸形模型，物体的绝对比例，其几何反照率以及该物体的光度特性模型目标。我们发现，Leucus是顺行旋转体用旋轴位于3（1个天空投影半径内σ从J2000黄道坐标（）λ = 208，β = + 77）或J2000赤道坐标（RA = 248，DECL。 = + 58）。恒星周期细化为P _sid= 445.6830.007 h。凸形模型是不规则的，最大尺寸为60.8、39.1和27.8 km。凸模型说明了掩星轮廓的整体特征，尽管较小的偏差表明存在局部和整体凹面。我们确定p _V = 0.0430.002的几何反照率。导出的相位曲线支持Leucus的D型分类。