When you create a particle object, it has two types of static attributes:
These attribute are permanently part of a particle object. You typically won’t work with the static attributes that are part of its transform node, for example, scaleX, translateX, and so on. These attributes control the position and orientation of the transform node of the entire particle object, not the position and orientation of the individual particles.
You’ll instead work with the static attributes of the particle shape node, for example, position, velocity, acceleration, and age. These attributes appear in the Attributes list of the Expression Editor’s when you select Object Filter > Dynamics > Particles for the selected particle object.