Not sure about this one, out at the Pinnacles taking pics. I was taking a time-lapse facing west and when processing these three frames noticed a very bright spot at 10.00 oclock in relation to Venus. It appears in one frame and on no others there is no trail and its duration must have been very quick. No aircraft or other objects visible. Stellrium does not show any satellites at this time. If anyone can suggest what it might be i would be interested to know. I thought of hot pixels etc but the object on screen has a diameter of 13 pixels.
details for the three pics are are
CANON 650D ISO 3200 20 sec F3.5 @ 28mm
Pinnacles Cervantes WA
S 30.5761 E 115.1700
August 3rd
Pin 1 19.13.08
pin 2 19.13.43
pin 3 19.14.18
all the best
Paul