ORaaS Measurements Demo
This demo is intended to illustrate the measurements generation services provided by ORaaS.
Populate the form with your configuration - or our example -, the delta between the orbit and the generated measurements are displayed in charts.
The core of the service is a propagation computation which expects an initial Orbit Bulletin and a Force Model.
By default, position/velocity measurements will be generated for the whole period of the simulation, at one-minute step.
ORaaS generates a set of measurements and computes the delta with the theoretical orbit. The residuals are displayed below the form. A sample result might look like this.
Note that you can download the measurements generated by checking the box Download Measurements. You will get either a TDM or OEM file according to the type of measurement requested.
The period of the simulation is configured at the top of the form.
Please click on Type of Measurements to display a form where you can modify the type and the frequency of the generated measurements.
In the Type list box, you can select position/velocity or range/azimuth/elevation measurements:
In the example above, Burst Period is set to 100, Max Burst Size is set to 10 and High Rate Step Size to 2.
In the form Orbit Bulletin, the input for keplerian parameters is displayed by default. You can change the type of the orbit bulletin in the Type list box.
The Frame list box is populated with the name of the pseudo-inertial frames provided by Orekit.
The angle values are expected in degrees.
The configuration of the propagation algorithm is completed by the default force model. Please click on Force Model to display the form. Further help can be found in the Orbit Determination Presentation page.
The output of Measurements Demo can be used to experiment ORaaS Orbit Determination Demo.
Please note that Orbit Determination Demo accepts more than one measurements file, so you can define several stations for your simulation.
This demo illustrates the measurements generation service published by ORaaS. More parameters can be given: several stations, fixed bias... Details can be found in our API documentation.