The phrase "pinpointed at" is correct and commonly used in written English.
It is typically used to indicate that something has been precisely identified or located. Example: During the investigation, the detective pinpointed the suspect at the scene of the crime using surveillance footage.
Two of them add a subtle tone that's meant to mask my tinnitus, which during my hearing test she pinpointed at about six thousand hertz.
This matched the story of despair deaths, whose appearance Case and Deaton pinpointed at 1990, just when the 1955 birth cohort passed into early middle age.
By the end of the Putnam study, the researchers hope to have pinpointed at least a few popular coyote hangouts so they can go to those areas and educate the residents on ways to prevent confrontations, said Susan Elbin, a senior Wildlife Trust scientist who is also leading the project.
The most popular corners to catch a yellow cab in Manhattan can now be pinpointed, at any hour of any day of the week, thanks to a record of 90 million actual taxi trips that have been silently tracked by the city.
The purchase price of Google's acquisition of restaurant review and guide source Zagat has been pinpointed at $151 million in cash, according to an SEC filing by the company itself and reported by Reuters.
Susan was pinpointed at the center of the whole operation.
Should we restructure affirmative action so it pinpoints at-risk youth in Pasadena rather than Compton?
As we can see, it is difficult to pinpoint, at the naked eye, to the exact block locations where the alteration occurred in Figure 18(a).
People would get to a certain age and still try to pinpoint at this young demographic because hip-hop is a young man's sport.
In a private memo distributed on the Hill, the centrist-Democratic group Third Way instructs lawmakers to pinpoint at least seven tax expenditures to toss in the scrap heap.
Although neither the finished drug manufacturer nor the FDA were able to pinpoint at which point the drug became adulterated, they determined that it happened before the active pharmaceutical ingredients were manufactured in a Chinese plant.
