Red lights traveling over Northern Westchester, NY

At approximately 8:45PM on Thanksgiving night 2012, I was outside with my daughter, facing east and witnessed 3 bright red glowing lights in the sky.  They were moving at a rapid pace, from east to north, beginning low in the horizon and then moving upward quickly and begin to move more slowly.  They reached a very high point in the sky, and then just stopped moving and hung motionless.  The lights dimmed and disappeared after 20 seconds, first the highest one, and then the other two lights.  There were no sounds emitted, there were not fire sparks or tail.  The time elapsed from when I first saw the lights to the time the last one disappeared was approximately 1 minute 30 seconds.  The night was very clear, there were no clouds.  Wind was minimal.
As I continued to wonder what I just saw, I witnessed another red glowing light coming from the horizon out of the east on almost the same trajectory as the first lights I had seen.  The light was traveling quickly in a horizontal trajectory, and then began to move upward and slow its pace.  Then a second red light appeared, as well as a third with similar trajectory.  These lights also traveled quickly horizontally and then began to move upward toward the first light that was hanging motionless in the sky in practically the same position that the first set of lights were sighted.  The second and third lights began to slow as they ascended, and then hung motionless in the sky.  Again, there were no sounds emitted, there were no fire sparks or tail to any of these lights.  They appeared to dim and disappear after a minute.  This second sighting of lights occurred approximately 2 minutes after the first set of lights disappeared.
	The distance of these lights from the ground were quite far away.  The lights were very red, very bright, although their altitude appeared to be that of a high flying aircraft.