We introduce a new method for analyzing sparse photometric data of asteroids and apply it to Zwicky Transient Facility observations of the Jupiter Trojan asteroids. This method relies on the creation of a likelihood model that includes the probability distribution of rotational brightness variations at an unknown rotation phase. The likelihood model is analyzed via a Markov Chain Monte Carlo to quantify the uncertainty in our parameter estimates. Using this method, we provide color, phase parameter, absolute magnitude, and amplitude of rotation measurements for 1049 Jupiter Trojans. We find that phase parameter is correlated with color and the distribution of Trojan asteroid rotational amplitudes is indistinguishable from that of main-belt asteroids.

我们介绍了一种用于分析小行星的稀疏光度数据的新方法，并将其应用于木星特洛伊木星的Zwicky瞬态设施观测。此方法依赖于可能性模型的创建，该模型包括在未知旋转阶段的旋转亮度变化的概率分布。通过马尔可夫链蒙特卡罗分析似然模型，以量化参数估计中的不确定性。使用此方法，我们可以提供1049木星特洛伊木马的颜色，相位参数，绝对大小和旋转幅度的测量值。我们发现相位参数与颜色相关，特洛伊小行星旋转幅度的分布与主带小行星的分布没有区别。