I have located the position of my images in Ophiuchus in the region of Zeta Ophiuchi (not far from the boundary with Scorpius).
Attached is a mosaic of 5 images over the ten minutes of my imaging showing the movement against the background stars. I have added RA & Dec coordinates to define its position. Zeta Ophiuchi is marked. I have added in lines to show the craft's travel between the individual images. It was located at alt 35 deg. Azim 275 deg.
Some comments:
You can see the two components are travelling roughly parallel but drifting apart.
Based on their relative sizes (
http://spaceflightnow.com/atlas/av019/diagram.html) I would say that the Centaur is the bright one at the top and the AEHF satellite is the fainter one on the bottom closest to the plume.
The exhause plume is seen drifting away and dispersing over the 10 mins.
The movement is about 6 degrees over the ten minutes so it must not have yet been geo synchronous.
The ground track diagram (
http://spaceflightnow.com/atlas/av019/groundtrack.html) puts the vehicle just off the west coast of Western Australia at the time and this sits comfortably with the alt and azimuth of the sighting.
One question:
Is the exhaust plume the lingering result of the second Centaur burn that was completed over an hour earlier or could it be a product of the separation. I think probably from the Centaur burn (and the plume has travelled with the spacecraft).
I will leave it to others to now absolutely confirm that it was AEHF based on the location and time in the image.
Rgds,
Terry