PV measurement data format

Hello, All.

I am newbi in orekit. I hope to know the file format for measurement data.

I can’t find the file format. Would you let me know the file format or any information?

Best regards,

Can you elaborate little more?
Do you want to read PV file or output one?
Do you want to use this class?


I am following the tutorial which is provided in orekit.

I hope to read PV measurement data from the file like the example.

My final goal is to determine the orbit from GPS navigation data.

Best regards,

Can you link the tutorial?


I am showing this tutorial as the following link:

The file used in the OrbitDetermination tutorial was made up for the sake of the tutorial. It is a simple columns oriented file. If you want to add PV measurements, you have to provide lines with the following fields:

field 1: date in ISO8601/CCSDS format
field 2: measurement type, PV for Position-Velocity
field 3: ground station, ignored for PV measurements, so could be replaced by “----”
fields 4, 5, 6: position in kilometers
fields 7, 8, 9: velocity in kilometers per seconds

Note that the tutorial has not (yet) be changed to handle position-only measurements, despite they
are available in Orekit 9.3 released a few days ago. It is however simple to add this and provide a
dedicated parser for such lines.