Figures & data
Figure 1. Six-layer model for scenarios (Bock et al. Citation2018) (reprinted with permission).
![Figure 1. Six-layer model for scenarios (Bock et al. Citation2018) (reprinted with permission).](/cms/asset/d5451b27-45f2-46c7-b21d-6d931024d008/gcpi_a_1630827_f0001_b.jpg)
Figure 2. Database process within PEGASUS based on Zlocki et al. (Citation2018).
![Figure 2. Database process within PEGASUS based on Zlocki et al. (Citation2018).](/cms/asset/4e9d1c69-91ff-4811-a094-fd2207db40b6/gcpi_a_1630827_f0002_b.jpg)
Figure 3. Relative collision paths defining the base scenarios (Bock et al. Citation2018) (reprinted with permission).
![Figure 3. Relative collision paths defining the base scenarios (Bock et al. Citation2018) (reprinted with permission).](/cms/asset/6271afd7-c2dc-461a-ad5e-6e764e8ef82e/gcpi_a_1630827_f0003_b.jpg)
Table 1. Proposed nomenclature for base scenarios.