Think about which situation is more likely to produce good specular reflections to the observer. I don't know the answer for sure, but I have a hypothesis. Also note some satellites that are not geostationary. Each frame in the movies is a 20-second exposure. A 10-second delay separated successive exposures.
North is up and East is to the left.
The declination of the satellites is approximately -5.3 degrees. In the ingress movie, the first and last frames are centered at RA 12h22m and 13h06m respectively. In the egress movie, the first and last frames are centered at RA 13h15m and 13h55m respectively.