South Shore, Lake Ontario
We were located on the south shore of Lake Ontario on 8th June 1998 in Niagara-on-the-Lake. The north shore skyline was very clear against the setting sun, and this made it much easier to pick out the landmarks. Also, the aircraft approaching Pearson Airport were very clearly visible.
In these frames from SuperVHS videotape, we recorded an ORB which was travelling west towards Mississauga. The aircraft was approaching from the west, on its descent into Pearson International Airport.
The ORB appears to be considerably lower than the aircraft. The ORB did not move very fast, but rather it just bumbled along, giving the impression of "pulsating." When the aircraft approached, the ORB dulled down somewhat in light intensity. However, when the ORB was almost immediately "under" the aircraft, and most likely out of visual range, it brightened considerably and continued on its way.
At first, I had thought that the ORB was much closer to us, due to its exceedingly bright appearance and large size. If that had been the case, then the ORB would most likely have been visible from the port side of the aircraft. The fact that the ORB dulls down just before the aircraft appears (to us) to pass over it, suggests, to me, that the ORB was actually below the aircraft.