According to one of the answers to a question concerning Opportunity, the rover has a top speed of 180 meters per hour (no reference).
Based on daily performances however a reasonable speed estimate is 100 meters a day.
According to this article, the rover needs about 100 watts to drive, but it doesn't mention the speed that is reached with that 100 watts.
Are there any references about the driving power of the rovers motors ?
The solar power supplies varies between 300 to 900 watt-hours per day.
The crash site of the Schiaparelli lander is about 54 km away from where Opportunity was at the time, so should it not be possible to reach that site within a year, or are there other factors to take into account ?