Circular shaped light travels quickly across sky in suburbs.

At around 2 am, I arose from bed and looked outside.  In less that a minute I saw a extremely bright yellow light (roughly circular in shape) travel from the north and dissappear behind some trees.  There was no sound, and it was moving at an extremely rapid speed.  I would estimate the total time the object was in my view to be no more than 3-5 seconds.
 This is the second time a strange object has been seen in this area.  About 12 years ago, a fast moving red light shot across the sky moving west to east during the late evening.
Witness elects to remain totally anonymous.  PD