Jupiter has nearly 8000known co-orbital asteroids orbiting in the L4 and L5 Lagrange points called Jupiter Trojan asteroids. Aside from the greater number density of the L4 cloud, the two clouds are in many ways considered to be identical. Using sparse photometric data taken by the Asteroid Terrestrial-impact Last Alert System for 863 L4 Trojans and 380 L5 Trojans, we derive the shape distribution for each of the clouds and find that, on average, the L4 asteroids are more elongated than the L5 asteroids. This shape difference is most likely due to the greater collision rate in the L4 cloud that results from its larger population. We additionally present the phase functions and c−o colors of 266objects.

木星有近8000个已知的公转小行星在称为L4和L5拉格朗日的轨道上运行，称为木星特洛伊木星小行星。除了L4云的数量密度更高之外，在许多方面，这两个云还被认为是相同的。使用863 L4木马和380 L5木马的小行星地面撞击最后警报系统获取的稀疏光度数据，我们得出了每个云的形状分布，发现平均而言，L4小行星比L5小行星更长。 。这种形状差异很可能是由于L4云中的较大碰撞导致较大的碰撞率。我们另外介绍了266个对象的相位函数和c - o颜色。