@@ -34,3 +34,26 @@ The header is the first object of a CZML file, it describes for example what kin
**name** - String : Name of the header, describes what have been used to build it
**Clock** - [Clock]() : The clock object, describes when the study will be done.
# Build
A header can be build with :
* An Id, a name, and a [Clock]() :
```Java
Header header = new Header(id, name, clock);
```
* An id, a name, a version and a [Clock]() :
```Java
Header header = new Header(id, name, version, clock);
```
* A [Propagator](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/propagation/Propagator.html)(from Orekit) and an [AbsoluteDate](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/time/AbsoluteDate.html)(from Orekit) that represents the final date of the simulation.
```Java
Header header = new Header(propagator, finalDate);
