"chart trajectory" is a correct and usable phrase in written English.
It is typically used to mean "plot a course" or "plot a path". For example, "The project manager charted a trajectory for the project that would bring it to completion quickly and efficiently."
The following week, the song began its decline, and experienced a total chart trajectory of seven weeks.
The following week, the song began its decline, and had a total chart trajectory of ten weeks.
In the following week, the song began its decline, and experienced a total chart trajectory of eight weeks.
The following week, the song reached its peak of number seventeen, where it spent two weeks, and had a total chart trajectory of ten weeks.
The week after, the song ranked at number five, and weekly sales dropped to 3,072; thereafter, it continued to drop and remained 27 weeks in the top 50 and 38 weeks in the top 100, which remains the third longest chart trajectory of Farmer's single in France.
In Switzerland, the single debuted at its peak of number 14 on 27 March 2005 and immediately dropped, although as in France previously, it climbed again on 1 May thanks to CD maxi and vinyl's sales, then began to drop again and remained on the chart for a total of 16 weeks, which was Farmer's longest single chart trajectory on the Swiss Singles Chart at that time.
In reality, individual variation in growth means that many infants do not always track uniformly along growth chart trajectories.
This cartographic approach to charting trajectories reveals greater variation than the democracy-dictatorship dichotomy and its variations ("hybrid regimes").
Unsmiling, he settled somewhat stiffly onto a straight-backed armchair and began to chart the trajectory of his thinking.
Frank's speeches are the first and last of the evening; through their evasions, omissions, and confessions, they chart the trajectory of his self-destruction.
But those who maintain the shuttle, manage it, chart its trajectory and its future know that it embodies transition as well, with regular upgrades like the modern "glass cockpit" digital display that replaced antiquated dials.
