Plume - verification & validation report

commit fc79bb0 + uncommitted changes · 2026-10-08 03:32 Central Daylight Time · Python 3.12.10 · MuJoCo 3.15.0 · pytest 9.1.1 · Windows AMD64

139 / 139tests passed

0tests failed

0tests skipped

10 / 10NASA cases passed

0 / 9models validated

What this report means

Verification: The math is implemented correctly: the code reproduces analytic solutions, NASA reference trajectories, published tables and the expected convergence with time step. Everything on this page is verification.
Validation: The models match reality. This needs real flight or test data, which does not exist yet, so validation is pending for every model. Nothing here claims that the simulator predicts real flights.
Monte Carlo: Quantified dependability under stated uncertainties: the probability of success and the landing dispersion when vehicle and environment parameters are dispersed as specified. It is only as good as the models and the dispersions.

Models

model	code	verification status	tests	validation
High-fidelity aerodynamics: database, generator, verification	`src/plume/physics/aerodb.py`, `src/plume/physics/aero_gen/` (files listed below)	verified against public NASA wind-tunnel data at M 2.86 (normal force, centre of pressure, axial force) and against exact theory (Taylor-Maccoll cones, Rossow ogive charts, Love base pressure, slender-body limit) (`tests/test_aerodb.py`). Subsonic/transonic body data and finned-body data are not yet compared (see Verification gaps). Validation against flight data is pending.	40 / 40	Validation: pending real data
Atmosphere, wind and turbulence	`src/plume/physics/atmosphere.py`, `src/plume/physics/wind.py`, `src/plume/physics/turbulence.py`	verified against published tables and reference outputs (`tests/vv/test_environment.py`). Validation against measured soundings is pending.	24 / 24	Validation: pending real data
Earth model, frames and integration	`src/plume/physics/earth.py`, `src/plume/physics/gravity.py`, `src/plume/physics/sim.py`	verified (NASA check cases 1–10, analytic tests). Validation against flight data is pending.	24 / 24	Validation: pending real data
Guidance, navigation and control: the cargo hop	`src/plume/missions/hop.py` (`HopAutopilot`, `plan_ascent`), `src/plume/missions/targeting.py` (`ImpactPredictor`, `kepler_impact`), `src/plume/control/autopilot.py` (`LandingAutopilot`), `src/plume/control/attitude.py`	not applicable: this is the vehicle's flight software, not a physics model. The simulator's job is to show how well it works; the Monte Carlo campaigns below measure it. On the real route at high fidelity, 87.5 % of runs (95 % CI 77–94 %) land the cargo on target.	-	Validation: pending real data
Mass properties	`src/plume/physics/massprops.py` (`MassModel`, `MassProps`), `src/plume/physics/mjcf.py` (`build_mjcf`), `src/plume/physics/sim.py` (`RocketSim._apply_mass`, mid-step update)	verified, covering the CG against a brute-force sum, the CG travel as the tanks drain, exact mass bookkeeping, and the Tsiolkovsky Δv and variable-mass work–energy balance that depend on the mid-step update (`tests/test_physics_models.py`, `tests/test_physics_conservation.py`). Validation against measured vehicle mass properties (weighing and swing tests) is pending.	4 / 4	Validation: pending real data
Sensors and navigation	`src/plume/physics/sensors.py`, `src/plume/control/navigation.py`	verified, covering noise statistics, the GNSS rate and latency, the barometric inversion, and filter accuracy on the pad and in powered flight (`tests/test_navigation.py`). Validation against flight data is pending.	8 / 8	Validation: pending real data
Propulsion: main engine, gimbal and RCS	`src/plume/physics/propulsion.py` (`Engine`, `RCS`, `read_eng`), `src/plume/config.py` (`EngineSpec`, `RCSSpec`)	verified, covering the Isp and throttle limits, ignition count, flame-out when dry, gimbal limits and torque signs, RCS allocation, mass conservation, total impulse, Tsiolkovsky Δv and burn to depletion (`tests/test_physics_models.py`, `tests/test_physics_conservation.py`), plus the high-fidelity gimbal actuator, ignition delay and RCS minimum impulse bit (`tests/test_actuators.py`). Validation against engine test-stand or flight data is pending.	12 / 12	Validation: pending real data
Propellant slosh	`src/plume/physics/slosh.py`, enabled per tank with `tanks[].slosh: true` (damping `slosh_damping`)	verified. Tests check the analytic first-mode frequency and mass, the free-oscillation period (within 1 %), and closed-loop hover stability with slosh coupling (`tests/test_slosh.py`). Validation against tank tests or flight data is pending.	3 / 3	Validation: pending real data
Real-world terrain (`plume.terrain.dem`)	`src/plume/terrain/dem.py` (library), `src/plume/terrain/cli.py` (`plume terrain …`)	verified, covering projection round-trips and geodesic distances, tile naming, mosaicking and resampling against an analytic surface, synthetic-detail flagging and hazard maps (`tests/test_dem.py`). Validation of the DEM against surveyed heights is pending.	16 / 16	Validation: pending real data

Status text is quoted from each page's Verification status line. The tests column counts the test areas mapped to that model (Earth: Earth & gravity, integration, NASA check cases).

Tests by area

area	passed	total	time, s
Earth & gravity	6	6	126.1
Integration & convergence	8	8	55.2
NASA check cases	10	10	87.8
Atmosphere, wind & turbulence	24	24	4.9
Aerodynamics	40	40	8.0
Navigation & sensors	8	8	4.5
Propulsion & actuators	12	12	2.5
Mass properties	4	4	0.5
Propellant slosh	3	3	2.3
Terrain	16	16	9.9
Monte Carlo machinery	6	6	0.0
Other	2	2	0.2

NASA 6-DOF check cases (NASA/TM-2015-218675)

Plume (high fidelity) against the median of the NASA simulation tools over 30 s, 0.5 s samples. Tolerance = max(absolute floor, 2 × the largest deviation of any NASA tool from that median). Units: ft, ft/s, deg, deg/s. The worst variable is the one with the largest error-to-tolerance ratio.

case	variables passed	worst variable	max error	tolerance	pass
1. Dropped sphere, no drag	12 / 12	`alt_ft`	0.00429	0.1	pass
2. Tumbling brick, no damping	12 / 12	`alt_ft`	0.0134	0.1	pass
3. Tumbling brick with damping	12 / 12	`alt_ft`	0.0134	0.1	pass
4. Sphere, round non-rotating Earth	12 / 12	`vd_fps`	0.000875	2.13	pass
5. Sphere, round rotating Earth	12 / 12	`vd_fps`	0.000871	2.13	pass
6. Sphere, WGS-84 rotating Earth	12 / 12	`alt_ft`	0.00958	1.25	pass
7. Sphere, steady wind	12 / 12	`alt_ft`	0.00958	1.25	pass
8. Sphere, wind shear	12 / 12	`ve_fps`	0.00209	0.01	pass
9. Cannonball eastward along the equator	12 / 12	`alt_ft`	0.889	6.76	pass
10. Cannonball northward along the prime meridian	12 / 12	`alt_ft`	0.968	6.57	pass

All comparisons120 rows

case	variable	max error	NASA spread	tolerance	pass
1	`alt_ft`	0.00429	0.00161	0.1	pass
1	`lat_deg`	4.33e-39	2.42e-18	1e-06	pass
1	`lon_deg`	2.96e-11	5.7e-08	1e-06	pass
1	`vn_fps`	1.33e-34	3.41e-13	0.01	pass
1	`ve_fps`	1.05e-06	0.0007	0.01	pass
1	`vd_fps`	0.000286	0.000115	0.01	pass
1	`yaw_deg`	1.14e-13	0	0.01	pass
1	`pitch_deg`	1.25e-17	1.91e-14	0.01	pass
1	`roll_deg`	8.87e-11	8.62e-08	0.01	pass
1	`p_dps`	1.81e-12	0	0.01	pass
1	`q_dps`	9.28e-18	0	0.01	pass
1	`r_dps`	1.36e-21	9.28e-19	0.01	pass
2	`alt_ft`	0.0134	0.00162	0.1	pass
2	`lat_deg`	2.46e-20	2.42e-18	1e-06	pass
2	`lon_deg`	1.02e-10	5.7e-08	1e-06	pass
2	`vn_fps`	2.31e-15	9.05e-14	0.01	pass
2	`ve_fps`	3.72e-06	0.0007	0.01	pass
2	`vd_fps`	0.000896	0.000115	0.01	pass
2	`yaw_deg`	0.000157	1.29	2.59	pass
2	`pitch_deg`	0.00012	3.41	6.82	pass
2	`roll_deg`	0.000503	3.71	7.41	pass
2	`p_dps`	0.000212	0.00301	0.01	pass
2	`q_dps`	0.000275	0.00473	0.01	pass
2	`r_dps`	8.61e-05	0.00115	0.01	pass
3	`alt_ft`	0.0134	0.00054	0.1	pass
3	`lat_deg`	1.51e-21	2.42e-18	1e-06	pass
3	`lon_deg`	1.02e-10	5.7e-08	1e-06	pass
3	`vn_fps`	2.01e-16	8.06e-14	0.01	pass
3	`ve_fps`	3.72e-06	0.0007	0.01	pass
3	`vd_fps`	0.000895	3.06e-05	0.01	pass
3	`yaw_deg`	0.0269	0.34	0.68	pass
3	`pitch_deg`	0.0802	0.571	1.14	pass
3	`roll_deg`	0.0328	0.493	0.986	pass
3	`p_dps`	0.0033	0.0306	0.0612	pass
3	`q_dps`	0.00379	0.0723	0.145	pass
3	`r_dps`	0.00134	0.0161	0.0321	pass
4	`alt_ft`	0.0088	18.1	36.2	pass
4	`lat_deg`	9.85e-20	7.83e-07	1.57e-06	pass
4	`lon_deg`	0	0	1e-06	pass
4	`vn_fps`	2.99e-14	0.01	0.02	pass
4	`ve_fps`	4.39e-15	1.21e-13	0.01	pass
4	`vd_fps`	0.000875	1.06	2.13	pass
4	`yaw_deg`	4.99e-08	3.33	6.66	pass
4	`pitch_deg`	4.91e-09	4.35	8.7	pass
4	`roll_deg`	4.99e-09	5.12	10.2	pass
4	`p_dps`	0	1.1e-08	0.01	pass
4	`q_dps`	0	2e-08	0.01	pass
4	`r_dps`	3.55e-15	2e-08	0.01	pass
5	`alt_ft`	0.00876	18.2	36.3	pass
5	`lat_deg`	5.89e-20	7.83e-07	1.57e-06	pass
5	`lon_deg`	5.41e-11	1.8e-07	1e-06	pass
5	`vn_fps`	3.07e-14	0.01	0.02	pass
5	`ve_fps`	2.63e-06	0.00277	0.01	pass
5	`vd_fps`	0.000871	1.07	2.13	pass
5	`yaw_deg`	6.79e-08	3.35	6.69	pass
5	`pitch_deg`	8.31e-08	4.35	8.7	pass
5	`roll_deg`	1.01e-07	5.13	10.3	pass
5	`p_dps`	7.33e-09	1.1e-08	0.01	pass
5	`q_dps`	3.78e-09	2e-08	0.01	pass
5	`r_dps`	3.12e-09	2e-08	0.01	pass
6	`alt_ft`	0.00958	0.623	1.25	pass
6	`lat_deg`	1.26e-24	8.58e-18	1e-06	pass
6	`lon_deg`	6.59e-10	5.95e-08	1e-06	pass
6	`vn_fps`	5.26e-15	1.22e-09	0.01	pass
6	`ve_fps`	2.73e-06	0.000608	0.01	pass
6	`vd_fps`	0.000918	0.101	0.201	pass
6	`yaw_deg`	1.14e-13	2.19e-12	0.01	pass
6	`pitch_deg`	1.27e-14	1e-09	0.01	pass
6	`roll_deg`	6.52e-11	7.68e-08	0.01	pass
6	`p_dps`	1.95e-12	0	0.01	pass
6	`q_dps`	9.28e-18	0	0.01	pass
6	`r_dps`	6.66e-22	9.28e-19	0.01	pass
7	`alt_ft`	0.00958	0.623	1.25	pass
7	`lat_deg`	4.75e-20	8.55e-18	1e-06	pass
7	`lon_deg`	3.39e-10	6.73e-08	1e-06	pass
7	`vn_fps`	2.04e-15	1.22e-09	0.01	pass
7	`ve_fps`	8.75e-06	0.00242	0.01	pass
7	`vd_fps`	0.000919	0.101	0.201	pass
7	`yaw_deg`	1.14e-13	0	0.01	pass
7	`pitch_deg`	1.23e-17	1.91e-14	0.01	pass
7	`roll_deg`	1.23e-10	1.41e-07	0.01	pass
7	`p_dps`	8.13e-12	0	0.01	pass
7	`q_dps`	9.28e-18	0	0.01	pass
7	`r_dps`	4.97e-22	9.28e-19	0.01	pass
8	`alt_ft`	0.00954	0.617	1.23	pass
8	`lat_deg`	8.61e-20	8.58e-18	1e-06	pass
8	`lon_deg`	1.72e-09	2.42e-07	1e-06	pass
8	`vn_fps`	1.44e-15	1.22e-09	0.01	pass
8	`ve_fps`	0.00209	0.00428	0.01	pass
8	`vd_fps`	0.000913	0.0999	0.2	pass
8	`yaw_deg`	1.14e-13	0	0.01	pass
8	`pitch_deg`	1.26e-17	1.91e-14	0.01	pass
8	`roll_deg`	5.47e-09	1.5e-07	0.01	pass
8	`p_dps`	1.54e-11	0	0.01	pass
8	`q_dps`	9.28e-18	0	0.01	pass
8	`r_dps`	1.34e-21	9.28e-19	0.01	pass
9	`alt_ft`	0.889	3.38	6.76	pass
9	`lat_deg`	1.2e-18	7.23e-16	1e-06	pass
9	`lon_deg`	2.76e-06	1.07e-05	2.15e-05	pass
9	`vn_fps`	6.12e-14	2.07e-12	0.01	pass
9	`ve_fps`	0.0378	0.161	0.321	pass
9	`vd_fps`	0.0333	0.134	0.268	pass
9	`yaw_deg`	0	0	0.01	pass
9	`pitch_deg`	7.16e-08	1.23e-05	0.01	pass
9	`roll_deg`	0	2.84e-14	0.01	pass
9	`p_dps`	7.36e-27	1.6e-18	0.01	pass
9	`q_dps`	1e-09	1.21e-06	0.01	pass
9	`r_dps`	5.31e-28	1.6e-18	0.01	pass
10	`alt_ft`	0.968	3.28	6.57	pass
10	`lat_deg`	6.66e-06	0.000414	0.000828	pass
10	`lon_deg`	8.4e-09	6.56e-08	1e-06	pass
10	`vn_fps`	0.0391	0.162	0.324	pass
10	`ve_fps`	0.000132	0.000695	0.01	pass
10	`vd_fps`	0.0349	0.131	0.262	pass
10	`yaw_deg`	0	1.49e-08	0.01	pass
10	`pitch_deg`	0.00041	0.00041	0.01	pass
10	`roll_deg`	3.22e-08	1.48e-07	0.01	pass
10	`p_dps`	1.13e-09	1.21e-06	0.01	pass
10	`q_dps`	1.05e-10	7.02e-37	0.01	pass
10	`r_dps`	1.42e-13	1.6e-18	0.01	pass

Monte Carlo reports

report	mission	fidelity	runs	success	95 % CI	CEP50	source
demo_hop_fast	demo_hop	fast	200	12.5 %	8.6–17.8 %	257 m	summary.json
demo_hop_fast_v5_64	demo_hop	fast	64	17.2 %	9.9–28.2 %	220 m	summary.json
real_hop_high	real_hop	high	64	87.5 %	77.2–93.5 %	5 m	summary.json

Headline numbers come from runs/mc/<name>/summary.json, or from the report page itself when that file is missing (for example while a campaign is being re-run). Success probability uses the Wilson score interval; CEP50 is the median miss distance of the landed runs. Monte Carlo results inherit the model-form error of the unvalidated models.

All tests

Earth & gravity6 / 6 passed

test	result	time, s
`test_gravity_models` tests.test_physics_models	pass	0.00
`test_spherical_map_roundtrip` tests.test_physics_models	pass	0.00
`test_geodetic_roundtrip` tests.vv.test_analytic	pass	0.00
`test_gravity_matches_potential_gradient_and_known_values` tests.vv.test_analytic	pass	0.00
`test_point_mass_kepler_orbit_closes` tests.vv.test_analytic	pass	113.78
`test_rotating_frame_jacobi_energy_conserved` tests.vv.test_analytic	pass	12.31

Integration & convergence8 / 8 passed

test	result	time, s
`test_free_flight_energy_conserved` tests.test_physics_conservation	pass	1.33
`test_gravity_free_fall_matches_analytic` tests.test_physics_conservation	pass	0.08
`test_linear_momentum_conserved_without_forces` tests.test_physics_conservation	pass	0.14
`test_spherical_gravity_ballistic_arc_conserves_energy` tests.test_physics_conservation	pass	4.01
`test_torque_free_angular_momentum_conserved` tests.test_physics_conservation	pass	0.26
`test_pointmass_agrees_with_6dof_vertical_flight` tests.test_physics_models	pass	0.56
`test_convergence_with_timestep` tests.vv.test_analytic	pass	25.98
`test_tabulated_aero_step_size_floor` tests.vv.test_analytic	pass	22.89

NASA check cases10 / 10 passed

test	result	time, s
`test_nasa_atmospheric_checkcase[1]` tests.vv.test_nasa_checkcases	pass	9.35
`test_nasa_atmospheric_checkcase[2]` tests.vv.test_nasa_checkcases	pass	9.50
`test_nasa_atmospheric_checkcase[3]` tests.vv.test_nasa_checkcases	pass	9.58
`test_nasa_atmospheric_checkcase[4]` tests.vv.test_nasa_checkcases	pass	2.86
`test_nasa_atmospheric_checkcase[5]` tests.vv.test_nasa_checkcases	pass	9.20
`test_nasa_atmospheric_checkcase[6]` tests.vv.test_nasa_checkcases	pass	9.64
`test_nasa_atmospheric_checkcase[7]` tests.vv.test_nasa_checkcases	pass	9.58
`test_nasa_atmospheric_checkcase[8]` tests.vv.test_nasa_checkcases	pass	9.71
`test_nasa_atmospheric_checkcase[9]` tests.vv.test_nasa_checkcases	pass	9.19
`test_nasa_atmospheric_checkcase[10]` tests.vv.test_nasa_checkcases	pass	9.19

Atmosphere, wind & turbulence24 / 24 passed

test	result	time, s
`test_wind_is_deterministic_per_seed` tests.test_physics_conservation	pass	0.42
`test_atmosphere_monotonic_and_tail` tests.test_physics_models	pass	0.00
`test_us_standard_atmosphere[0.0-288.15-101325.0-1.225]` tests.test_physics_models	pass	0.00
`test_us_standard_atmosphere[5000.0-255.68-54048.0-0.73643]` tests.test_physics_models	pass	0.00
`test_us_standard_atmosphere[11000.0-216.77-22700.0-0.3648]` tests.test_physics_models	pass	0.00
`test_us_standard_atmosphere[20000.0-216.65-5529.3-0.08891]` tests.test_physics_models	pass	0.00
`test_us_standard_atmosphere[32000.0-228.49-889.06-0.013555]` tests.test_physics_models	pass	0.00
`test_us_standard_atmosphere[50000.0-270.65-79.779-0.0010269]` tests.test_physics_models	pass	0.00
`test_us_standard_atmosphere[80000.0-198.64-1.0524-1.8458e-05]` tests.test_physics_models	pass	0.00
`test_wind_profile_and_direction` tests.test_physics_models	pass	0.00
`test_wind_spec_roundtrip` tests.test_physics_models	pass	0.00
`test_composite_wind_in_sim_world` tests.vv.test_environment	pass	0.14
`test_mil_low_altitude_parameters` tests.vv.test_environment	pass	0.00
`test_mil_turbulence_statistics[dryden]` tests.vv.test_environment	pass	2.02
`test_mil_turbulence_statistics[von_karman]` tests.vv.test_environment	pass	2.28
`test_nrlmsise00_reference_case_and_wrapper` tests.vv.test_environment	pass	0.01
`test_sounding_reproduces_us76_and_reads_radiosonde` tests.vv.test_environment	pass	0.00
`test_us76_lower_matches_published_table[0.0]` tests.vv.test_environment	pass	0.00
`test_us76_lower_matches_published_table[10000.0]` tests.vv.test_environment	pass	0.00
`test_us76_lower_matches_published_table[20000.0]` tests.vv.test_environment	pass	0.00
`test_us76_lower_matches_published_table[50000.0]` tests.vv.test_environment	pass	0.00
`test_us76_lower_matches_published_table[80000.0]` tests.vv.test_environment	pass	0.00
`test_us76_upper_table_continuity_and_monotonicity` tests.vv.test_environment	pass	0.02
`test_wind_profile_import_drives_the_sim_wind` tests.vv.test_environment	pass	0.00

Aerodynamics40 / 40 passed

test	result	time, s
`test_axial_force_vs_jernell` tests.test_aerodb	pass	0.34
`test_axisymmetric_symmetry` tests.test_aerodb	pass	0.00
`test_base_drag_and_face_drag` tests.test_aerodb	pass	0.00
`test_centre_of_pressure_vs_jernell` tests.test_aerodb	pass	0.00
`test_crossflow_drag_coefficient` tests.test_aerodb	pass	0.00
`test_dissipative_monte_carlo_dispersions` tests.test_aerodb	pass	0.30
`test_dissipative_no_wind[hobby_rocket]` tests.test_aerodb	pass	0.57
`test_dissipative_no_wind[lander_small]` tests.test_aerodb	pass	1.29
`test_engine_first_stability[cargo_hopper_finless]` tests.test_aerodb	pass	0.39
`test_engine_first_stability[lander_small]` tests.test_aerodb	pass	0.43
`test_generated_database_round_trip` tests.test_aerodb	pass	0.76
`test_geometry_matches_tn_d6996_fig9` tests.test_aerodb	pass	0.00
`test_grid_interpolator_collapses_singleton_axes` tests.test_aerodb	pass	0.00
`test_gridfin_multipliers` tests.test_aerodb	pass	0.00
`test_heating` tests.test_aerodb	pass	0.00
`test_hobby_rocket_static_margin` tests.test_aerodb	pass	0.72
`test_import_datcom` tests.test_aerodb	pass	0.03
`test_import_generic_csv` tests.test_aerodb	pass	0.02
`test_import_openrocket` tests.test_aerodb	pass	0.09
`test_import_rasaero` tests.test_aerodb	pass	0.09
`test_interpolation_exact_on_linear_data` tests.test_aerodb	pass	0.00
`test_newtonian_limits` tests.test_aerodb	pass	0.00
`test_normal_force_vs_jernell` tests.test_aerodb	pass	0.33
`test_ogive_wave_drag_vs_rossow_chart` tests.test_aerodb	pass	0.00
`test_performance` tests.test_aerodb	pass	0.48
`test_perturbed_database` tests.test_aerodb	pass	0.00
`test_power_on_and_retropropulsion` tests.test_aerodb	pass	0.70
`test_presets_generate[cargo_hopper]` tests.test_aerodb	pass	0.39
`test_presets_generate[cargo_hopper_finless]` tests.test_aerodb	pass	0.01
`test_presets_generate[hobby_rocket]` tests.test_aerodb	pass	0.01
`test_presets_generate[lander_small]` tests.test_aerodb	pass	0.01
`test_rate_damping_and_compat_attributes` tests.test_aerodb	pass	0.00
`test_roll_dependent_database` tests.test_aerodb	pass	0.01
`test_runtime_matches_tables` tests.test_aerodb	pass	0.00
`test_save_load_round_trip` tests.test_aerodb	pass	0.01
`test_skin_friction` tests.test_aerodb	pass	0.00
`test_slender_body_limit` tests.test_aerodb	pass	0.36
`test_sutherland_and_reynolds` tests.test_aerodb	pass	0.00
`test_taylor_maccoll_and_linnell_bailey` tests.test_aerodb	pass	0.25
`test_drag_work_accounts_for_energy_loss` tests.test_physics_conservation	pass	0.37

Navigation & sensors8 / 8 passed

test	result	time, s
`test_gnss_rate_and_latency` tests.test_navigation	pass	0.00
`test_imu_noise_density_and_bias` tests.test_navigation	pass	0.16
`test_navigation_mode_defaults` tests.test_navigation	pass	0.00
`test_navigator_on_pad_and_in_powered_flight` tests.test_navigation	pass	4.37
`test_pressure_altitude_inverts_standard_atmosphere[0.0]` tests.test_navigation	pass	0.00
`test_pressure_altitude_inverts_standard_atmosphere[1500.0]` tests.test_navigation	pass	0.00
`test_pressure_altitude_inverts_standard_atmosphere[8000.0]` tests.test_navigation	pass	0.00
`test_pressure_altitude_inverts_standard_atmosphere[18000.0]` tests.test_navigation	pass	0.00

Propulsion & actuators12 / 12 passed

test	result	time, s
`test_gimbal_actuator_delay_rate_limit_and_settling` tests.test_actuators	pass	0.01
`test_ignition_delay` tests.test_actuators	pass	0.01
`test_rcs_pwm_impulse_and_minimum_impulse_bit` tests.test_actuators	pass	0.01
`test_burn_to_depletion_matches_rocket_equation` tests.test_physics_conservation	pass	1.50
`test_tsiolkovsky_delta_v` tests.test_physics_conservation	pass	0.91
`test_engine_flameout_when_dry` tests.test_physics_models	pass	0.00
`test_engine_ignition_limit` tests.test_physics_models	pass	0.00
`test_engine_isp_and_throttle_limits` tests.test_physics_models	pass	0.01
`test_gimbal_rate_and_angle_limits` tests.test_physics_models	pass	0.00
`test_gimbal_torque_signs` tests.test_physics_models	pass	0.02
`test_rcs_allocation_produces_requested_axis` tests.test_physics_models	pass	0.04
`test_rcs_capability_positive` tests.test_physics_models	pass	0.01

Mass properties4 / 4 passed

test	result	time, s
`test_mass_conservation_and_total_impulse` tests.test_physics_conservation	pass	0.27
`test_work_energy_with_variable_mass` tests.test_physics_conservation	pass	0.23
`test_cg_drops_as_tanks_drain` tests.test_physics_models	pass	0.00
`test_mass_properties_match_brute_force` tests.test_physics_models	pass	0.00

Propellant slosh3 / 3 passed

test	result	time, s
`test_first_mode_frequency_and_mass` tests.test_slosh	pass	0.00
`test_free_oscillation_matches_natural_frequency` tests.test_slosh	pass	0.56
`test_hover_with_slosh_stays_controlled` tests.test_slosh	pass	1.69

Terrain16 / 16 passed

test	result	time, s
`test_aeqd_distance_matches_geodesic_at_750km` tests.test_dem	pass	0.00
`test_corridor_coarsens_and_records_route` tests.test_dem	pass	0.09
`test_from_geotiff_reprojects_utm_survey` tests.test_dem	pass	0.17
`test_hazard_kink_rock_and_nearest_safe` tests.test_dem	pass	0.00
`test_hazard_slope_threshold_on_planes` tests.test_dem	pass	0.00
`test_missing_tiles_are_sea_level_and_offline_errors` tests.test_dem	pass	0.02
`test_mosaic_and_resample_match_analytic_surface` tests.test_dem	pass	0.10
`test_network_fetch_real_tiles` tests.test_dem	pass	9.26
`test_projection_round_trip_sub_mm[pyproj]` tests.test_dem	pass	0.00
`test_projection_round_trip_sub_mm[rasterio]` tests.test_dem	pass	0.01
`test_projection_round_trip_sub_mm[sphere]` tests.test_dem	pass	0.00
`test_real_dataset_files_are_sane` tests.test_dem	pass	0.08
`test_sphere_fallback_close_to_ellipsoid` tests.test_dem	pass	0.01
`test_synthetic_detail_is_flagged_and_band_limited` tests.test_dem	pass	0.12
`test_tile_naming_and_urls` tests.test_dem	pass	0.00
`test_vincenty_reference_distance` tests.test_dem	pass	0.00

Monte Carlo machinery6 / 6 passed

test	result	time, s
`test_error_ellipse_recovers_covariance` tests.test_montecarlo	pass	0.00
`test_presets_load` tests.test_montecarlo	pass	0.01
`test_sampling_is_reproducible_and_applies_paths` tests.test_montecarlo	pass	0.00
`test_spearman` tests.test_montecarlo	pass	0.00
`test_summary_sensitivity_and_report` tests.test_montecarlo	pass	0.01
`test_wilson_interval_known_values` tests.test_montecarlo	pass	0.00

Other2 / 2 passed

test	result	time, s
`test_hard_impact_reports_touchdown_speed` tests.test_physics_models	pass	0.09
`test_lander_rests_on_legs` tests.test_physics_models	pass	0.07

Method

Tests: -m pytest -q -n 4 -m vv and -m pytest -q -n 4 tests/test_aerodb.py tests/test_navigation.py tests/test_actuators.py tests/test_slosh.py tests/test_dem.py tests/test_montecarlo.py tests/test_physics_models.py tests/test_physics_conservation.py. JUnit source runs/vv/junit.xml, run started 2026-10-08T03:29:39.217346-05:00. Regenerate with uv run plume vv-report (--no-run re-reads the last JUnit file, --no-nasa skips the check-case table).