Defining Scenario Events

The events array schedules Spacecraft, GPS, and Cyber effects against simulation time.

Common event envelope

{
  "Enabled": true,
  "Name": "Event Name",
  "Time": 100.0,
  "Repeat": false,
  "Interval": 1.0,
  "Type": "Spacecraft",
  "Assets": [],
  "Target": "Transmitter",
  "Data": {}
}

Field	Meaning
`Enabled`	Whether the event can fire
`Name`	Facilitator-facing label
`Time`	First trigger in simulation seconds
`Repeat`	Whether the trigger repeats
`Interval`	Repeat interval in simulation seconds
`Type`	`Spacecraft`, `GPS`, or `Cyber`
`Assets`	Target selection; empty means the widest available scope
`Target`	Component, model, or handler target
`Data`	Flat type-specific parameters

The legacy value failure is treated as a Spacecraft event. Do not author Ground or Scenario event types.

NOTE

The Studio Events tab splits targeting into Target Class, Target Component, and Target Model, and lists fault values under Parameters. In JSON these map to Target (the class, or a component name, with a -Model suffix for a model), Target Name (the component name), and Data.

Finding supported event definitions

Studio ships default event presets in Space Range → Events. Use those presets as the in-product catalog for the installed version.

They show supported:

event types
target components
error models
parameter names

When writing JSON, reproduce a known preset or a tested event from an existing scenario. Do not guess target and Data names.

Targeting rules

An empty Assets array applies the event broadly. Use it for a deliberate scenario-wide anomaly, not because the target syntax is unclear.

For one spacecraft or team:

use the same stable asset or collection identifiers used by the scenario
test with the installed Studio version
confirm only the intended constructed spacecraft changes

Timing rules

events use simulation seconds
repeat intervals also use simulation seconds
the simulation must run past the event time
reset returns to the scenario’s initial state and lets you repeat the test

Start with Repeat: false. A repeating fault can make recovery impossible.

Distinguishing event systems

These are Space Range scenario events. They are not the ordinary Studio events configured under a placed spacecraft’s Properties.