PASS  stored status
PASS  four pole histories
PASS  model 1 fixed-epoch 3D separation
PASS  model 1 has two crossing branches
PASS  model 1 inverse crossing epochs
PASS  model 2 fixed-epoch 3D separation
PASS  model 2 has two crossing branches
PASS  model 2 inverse crossing epochs
PASS  model 3 fixed-epoch 3D separation
PASS  model 3 has two crossing branches
PASS  model 3 inverse crossing epochs
PASS  model 4 fixed-epoch 3D separation
PASS  model 4 has two crossing branches
PASS  model 4 inverse crossing epochs
PASS  historical-state holdout fails beyond two degrees
OVERALL PASS: 16/16 Thuban descending-passage obligations
