>>6862210
My thoughts are thus:
What you describe seems like a satellite. The way to determine a satellite relative to something atmospheric is via its flight path. Orbital mechanics (within the laws of physics ofcourse) dictatges that anything on orbit must.. MUST follow an eleptical path. This will give you a spectfic view from a stationary point on the ground.
If it is a near-polar orbit (there are no true exact polar orbits because the satellite would go into the hole at the poles (KEK) but any near-polar orbit satellits will be traveling north-south. Never anything but north-south either. Also there will never EVER be a direction change. It is so unbelieveably expensive (fuel wise) to adjust an orbit that it is almost never done since Satellites cannot refuel. All weather and most spy satelites are polar or close
Now lets go to the other extreme. A geosuncronous orbit. These orbits are at right angles to a polar orbit and WAY WAY farther out. A GEO orbit satellite wil not be visible from the ground without some very precise work and some extremely expensive equipment. (all comm satellites and few others are GEO).
Next is this thing called a Molniya (sp?) orbit. These things are pretty weird and were set up by the soviets as a way to get a spy satellite that has very long dwell times but also has very close passes for quick zooomed in shots.
These orbits are HIGHLY ELIPTICAL. This means at sometimes the sat is really far out and going slow and at other times they are very close to the earth and moving very fast. Then there are all the orbits in between. These are things like the GPS system and the ISS and such. Their ground track will make a sine-wave on the surface of the earth as viewed from space.
So if you are in Alaska the ISS willpass west to east but if you are in Florida the same ISS will pass north-south. If any of these above explanations fit the thing you are seeing then it is a satellite.
Remember though if it EVER EVER EVER changes from a pretty much exactly straight steady path. If it turns if it speeds up or slows down then it IS NOT a satellite. Also Satellites are predictable. There is a cellphone app called Space Junk that will let you track them and indentify them. Very helpful for UFO researchers.
Satellites can flash if you catch the sun on the solar panels just right. Satelites can "disapear" if they catch shade from the earth or the moon stuff like that. All the above is easily looked up. Orbital Mechanics is the term. Also, play some Kerbal Space Program to get a feel for it.