Yes, the rotation of satellites makes some interesting patterns like this in image sets.
by Dr.Asteroid scientist, admin
Wait til we catch an iridium flare - when an iridium satellite (a communications satellite, not related to the metal) is canted just right, you get a HUGE flash. There are several places on the web where you can see when one will be visible where you are. They're quite startling.
With the short type flair ranging up to −8 magnitude. And the longer, but less bright, flair going up to −3.5 magnitude. It makes more sense to presume CSS would actively avoid them.
YouTube video: Iridium flares in real-time (Nov 2014)
Digging around a bit more:
- Iridium satellites are in low Earth orbit. (lower is faster orbital time)
- The lower a satellites the less observable sky area(declination limit) there is to catch it.
How fast: (track length)
Geostationary satellite: 360/246060/2 = 7.5 acrmin/(30sec), ~70% of cell frame.
Active Iridium satellite: 360/100.45957/2 = 1.792 deg/(30sec), ~63% of Master frame, ~10.5 cell frames.
ISS: [410..330] km, or ~[93..91] min/orbit, ~[68%..69%] Master frame, 11 Cell frames.
As ISS is in a even lower Earth orbit than Iridium satellites, its probably a very rare to a none-item on the CSS images too.
Active Iridium satellite: 781 km = 100.45957 min/orbit.
Spare Iridium satellite: 666 km = 98.04936 min/orbit.
Master frame size(H/V): 2.86 deg = 171.60 arcmin.
Cell frame size(H/V): 10.7 arcmin = 0.2 deg. (no cell overlap included!)
General CSS image exposure time: 30 sec.