Hi all, I would like to implement a custom handler to get sun vector position relative to spacecraft frame. Looking in some examples I am implementing it as shown in the code below. class SunvectorPosHandler(PythonOrekitFixedStepHandler): def __init__(self, angle): # set up Ear…

Ok, I get it. I must modify the line from: sunSat = inertToSpacecraft.transformPosition(sunInert) to: sunSat = StaticTransform.cast_(currentState.toTransform()).transformPosition(sunInert) Thanks for you guidance.

Hi, see: [image] Sun object does not have getPVCoordinates available Orekit Python Wrapper usage Hello, When I generate a CelestialBody like below, getPVCoordinates isn’t available when documentation suggests that it should be. from org.orekit.bodies import CelestialBod…

Hi Petrus, thank you very much! That worked for that line. Now, when I uncomment the following line sunSat = inertToSpacecraft.transformPosition(sunInert) Now the same error. I didn’t get well the explanation in the link you shared: I think this is true in general with the Python wrapper when yo…

Hi Think you need to cast as StaticTransform. Cheers, Romain

Hi Serrof, Yes, I get more or less the idea, but can’t figure exactly the implementation for the line sunSat = inertToSpacecraft.transformPosition(sunInert) Sorry :pray: And thanks in advance if you guide me more on this.

Custom handler Java runtime exception

Orekit Python Wrapper usage

petrus.hyvonen July 11, 2024, 8:19am 2

Hi, see: