First appeared two orbs that were the color of fire maybe 5 degrees apart starting on the horizon traveling north to south above i-476 and faded away one at a time at about 45 degrees above the horizon that might have been above plymoth meeting mall. the next orb appeared at the same spot on the horizon as the first two but not until the first two faded out and continued to where the first two faded out and it faded out as well. four more of the objects appeared to follow the same trajectory as the first three at the same interval and all faded away at the same point in the sky. in my opinion i believe they were at a very high orbit reflecting sunlight the way satellites do. but they would have been very large and moving very fast on an arc similar to satellites.