Engineering Dust Coma Model (EDCM) for ESA's Comet Interceptor mission to a dynamically new comet

This data-set contains all results from the Engineering Dust Coma Model (EDCM) for ESA's Comet Interceptor (CI) mission to a dynamically new comet.

A full description of the model behind the data can be found in the peer-reviewed paper Marschall, Zakharov et al. (2022), https://doi.org/10.1051/0004-6361/202243648. Please cite this data-set and the paper when using the data.

Contemporary numerical models of dusty-gas coma are used to obtain spatial distribution of dust for a given set of parameters. By varying parameters within a range of possible values we obtain an ensemble of possible dust distributions. Then, this ensemble is statistically evaluated in order to define the most probable cases and hence reduce the dispersion. This ensemble can be used to estimate not only the likely dust abundance along e.g. a fly-by trajectory of a spacecraft but also quantify the associated uncertainty.

The dust environment assessment for the case when the target comet is not known beforehand (or when its parameters are known with large uncertainty) is critical for spacecraft safety and planning. The EDCM provides an assessment of dust environment for the CI mission.

本数据集包含欧洲空间局（European Space Agency, ESA）彗星拦截器（Comet Interceptor, CI）任务针对动态新彗星开展的工程尘埃彗发模型（Engineering Dust Coma Model, EDCM）的全部研究结果。

该数据集所依托模型的完整说明可参阅同行评议论文Marschall、Zakharov等（2022），链接为https://doi.org/10.1051/0004-6361/202243648。使用本数据集及相关数据时，请引用该数据集与这篇论文。

当前主流的尘气彗发数值模型可针对给定参数集获取尘埃的空间分布特征。通过在合理参数区间内调整参数，我们可得到一系列可能的尘埃分布集成集合。随后对该集成集合开展统计评估，以确定最概然情形，进而降低结果的离散程度。该集成集合不仅可用于估算航天器飞掠轨迹沿线的尘埃丰度，还能量化相关的不确定性。

当目标彗星预先未知（或其参数存在较大不确定性）时，尘埃环境评估对航天器安全与任务规划至关重要。工程尘埃彗发模型（EDCM）可为彗星拦截器（CI）任务提供尘埃环境评估支持。