⊕ Astrophyzix Asteroid Impact Simulator V2.1
Advanced physics engine · Real planetary data · Impact dynamics
Live
T+0.000s
FRM0
PHZIDLE
Impact detected
Impact Parameters
Asteroid Diameter
500 m
Impact Velocity
20 km/s
Impact Angle
45°
Impactor Density
2500 kg/m³
Composition
Target World
Earth
Moon
Mars
Venus
Mercury
Jupiter
Surface Type
Quick Presets
Tunguska 1908
60 m · Carbonaceous · 27 km/s
Chicxulub K-Pg
10 km · Stony · 20 km/s
99942 Apophis
370 m · Stony · 7.5 km/s
101955 Bennu
500 m · Carbon · 6 km/s
Impact Analysis
Threat Classification
— Awaiting —
Impactor Properties
Diameter—
Mass—
Velocity—
Kinetic Energy—
TNT Equivalent—
Crater Dimensions
Transient Diam.—
Final Diameter—
Depth—
Ejecta Blanket—
Crater Type—
Environmental Effects
Seismic (Mw)—
Fireball Radius—
Blast (5 psi)—
Thermal Radius—
Peak Overpressure—
Ejecta Velocity—
Tsunami (Ocean Impacts)
Wave Ht @100 km—
Run-up Potential—
Global Severity
0%
Crater Size Index
0%
Module Identity
Module IDAIS-NARROW-v2.1.0 © 2026 Astrophyzix
EngineHTML5 Canvas · Vanilla JS ES2020
V2.1 Build Date2026-05-06
Status● Active
Physics Model Provenance
Crater ScalingHolsapple, K.A. (1993). Ann. Rev. Earth Planet. Sci. 21, 333–373. Pi-group scaling laws.
Complex CratersMelosh, H.J. (1989). Impact Cratering: A Geologic Process. Oxford Univ. Press.
Environmental FXCollins et al. (2005). Earth Impact Effects Program. Meteoritics 40(6), 817–840.
Airburst ModelChyba et al. (1993). The 1908 Tunguska explosion. Nature 361, 40–44.
Ejecta / BlastGault & Sonett (1982). GSA Spec. Paper 190.
TsunamiWeiss & Wünnemann (2008). AGU Monograph 174.
Atm. EffectsToon et al. (1997). Rev. Geophys. 35(1), 41–78.
⚠ Results are order-of-magnitude estimates for educational use only. Not for hazard assessment or civil-defence planning.
Planetary Data Sources
PrimaryNASA Planetary Fact Sheets (Williams, D.R., NSSDCA)
AtmosphereNSSDC/MSIS (Earth) · Mars Climate Database v6 · Venus VIRA · Jupiter Galileo probe
Last Verified2026-05
Known Limitations
Oblique ImpactsAngle enters only via sin(θ) normal-velocity term. Real oblique impacts produce elliptical craters not modelled here.
FragmentationMulti-body fragmentation during entry not modelled; airburst treated as point source.
TsunamiFar-field propagation assumes flat-bottomed ocean; shoaling not included.
Very Large EventsPi-group scaling breaks down above ~500 km crater diameter; results are extrapolations.
Governance & Usage Policy
Intended UseEducation, science communication, scenario visualisation.
ProhibitedOperational hazard assessment · insurance claims · civil defence planning.
Accuracy TierIndicative — ±50% on crater dimensions, ±1 OOM on energy effects.
Changelog
v2.1.0Narrow layout rebuild. Provenance drawer. Professional UI refresh.
v2.0.0Airburst model (Chyba 1993). Tsunami module (Weiss & Wünnemann 2008).
v1.0.0Initial release. Pi-group crater scaling, six planet targets, canvas particle system.