# `Sidereon.CCSDS.OPM.Spacecraft`
[🔗](https://github.com/neilberkman/sidereon-ex/blob/main/lib/sidereon/ccsds/opm.ex#L115)

Optional OPM spacecraft parameters. Every field is optional.

# `t`

```elixir
@type t() :: %Sidereon.CCSDS.OPM.Spacecraft{
  drag_area_m2: float() | nil,
  drag_coeff: float() | nil,
  mass_kg: float() | nil,
  solar_rad_area_m2: float() | nil,
  solar_rad_coeff: float() | nil
}
```

---

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