# `Sidereon.FrameCatalog.TerrestrialState`
[🔗](https://github.com/neilberkman/sidereon-ex/blob/main/lib/sidereon/frame_catalog.ex#L69)

Transformed terrestrial position and optional station velocity.

# `t`

```elixir
@type t() :: %Sidereon.FrameCatalog.TerrestrialState{
  position_m: Sidereon.vec3(),
  velocity_m_per_year: Sidereon.vec3() | nil
}
```

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*Consult [api-reference.md](api-reference.md) for complete listing*