rotation of the geometry

[AditiiiGarg]

i want to rotate my cpc geometry in e-w direction(tube length in e-w direction). In some threads I found that +y direction is north, so I am assuming +x points towards east and -x towards west. So the default value in tonatiuh for rotation is [0 0 1 0]. I tried changing it to [ 0 1 0 1.57]. Now it is now aligned in x axis. Now I want that aperture plane should be facing towards +z axis inclined at 30 degrees with the horizontal
however, I am not able to align this geometry correctly for 30 degree inclination.
An early help would be really appreciated.
thanks

[AditiiiGarg]

Update to the above problem:-
I could rotate it to a little close to the orientation I desired. But not exactly the values I want. I am sharing the screenshot of the tonatiuh screen. I have tried to play with the rotation parameter in the transform tab and got this value to [0.19422121 0.96153849 0.19422121 1.5700002] to align cpc longer axis in the e-w direction and facing south.

It would really help if anyone could suggest to me how to correct it further. Thanks