First spotted the orange object heading north to south directly over down town Vegas. Then I spotted a white object which came within close proximity of the orange object. This white object was headed from south to north.( basically like it was following the I-15 through Vegas)At this time of night, the planes landing and taking off at McCarran east to west.I lost site of the white object but was able to follow the orange object. The object made a 90* turn and started to head west. I was filming it as it was on this trajectory, when it slowed down immensely. I watched as planes took off from the airport and flew pass it. I filmed the best I could with my phone. The object then seems to have dissolved or phased out. As soon as the object vanished I spotted a helicopter flying towards the same area the object disappeared. The helicopter was flying west to east