Header.md

@@ -27,32 +27,27 @@ The header is the first object of a CZML file, it describes for example what kin
 
 # Properties
 
-**id** - String : Identification of the header
+**stepSimulation** - double : The number of seconds between each step.
 
 **version** - String : Version of Cesium to use, _default_ : "1.0"
 
-**name** - String : Name of the header, describes what have been used to build it
+**MASTER_CLOCK** - [Clock](Clock) : The clock object used for the simulation, describes when the study will be done
 
-**Clock** - [Clock](Clock) : The clock object, describes when the study will be done.
+**TIME_SCALE** - [TimeScale](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/time/TimeScale.html) : The time scale used for the simulation.
 
 # Build
 
 A header can be build with :
 
-* An Id, a name, and a [Clock](Clock) :
+* A name, and a [Clock](Clock) :
 
 ```Java
 Header header = new Header(name, clock);
 ```
 
-* An id, a name, a version and a [Clock](Clock) :
+* A name, a version and a [Clock](Clock) :
 
 ```Java
-Header header = new Header(id, name, version, clock);
+Header header = new Header(name, version, clock);
 ```
 
-# General values usable
-
-**MASTER_CLOCK** - [Clock](Clock) : The clock object used for the simulation
-
-**TIME_SCALE** - [TimeScale](https://www.orekit.org/site-orekit-development/apidocs/org/orekit/time/TimeScale.html) : The time scale used for the simulation.