A while ago I started to do a search of my older observations from 2013 and see what else I have lurking in the fits.
In this observation I have an asteroid mag v18.6.
Using astrometrica I found it is the (35287) 1996 TA18, discovered in 1996 by spacewatch survey at Kitt Peak
This asteroid has a period of 3.87 yr
The observation was made in Rc-Band and 150s exposures using a 30cm SCT and a KAF3200ME on JAN 02 2013.
We can see highlighted in blue the difference between the predicted position (red square) and the actual position (magenta circle) on that timestamp.
Astrometrica calculated the R magnitude to be 18.3, the catalog used was GAIA DR1.
Joao