The phrase "able to determine at" is correct and usable in written English.
It can be used when discussing the capability to make a decision or assessment at a specific point in time or under certain conditions.
Example: "The team was able to determine at the meeting whether the project was feasible."
Alternatives: "capable of assessing at" or "able to evaluate at".
We may never know precisely why Mr. Litvinenko was murdered, but the British police were able to determine, at least to their satisfaction, how he was murdered.
In particular, our techniques are able to determine, at design-time, when and how each constraint must be checked at runtime to avoid irrelevant verifications.
Over the years, a gang detective in the Bronx will probably have developed a radar able to determine at a glance the meaning of a hand gesture or a prison tattoo.
From these we were able to determine at least an aggregate remuneration for the boards of directors.
After a while, they are able to determine (at least in their own minds) what startups would succeed or fail in a matter of minutes.
You [the business] have to be able to determine, at that moment in time, what is the absolute right thing to do?
The Post was able to determine that at least 14 young people placed by ORR were caught up in MS-13 violence after their moves to the United States.
"With respect to the individual you mentioned," Mr. Taylor told a reporter, "we were able to determine that at no time could that individual be put in the presence of that flask from which these spores came".
"With respect to the other individual you mentioned," Joseph Persichini Jr., the head of the F.B.I.'s Washington field office, told a reporter who asked about Dr. Hatfill, "we were able to determine that at no time could that individual be put in the presence of that flask from which these spores came".
Over four years, the scientists excavated thousands of fossilized bones and stone tools and were able to determine that at least ten individual animals, and perhaps many more, were butchered by early humans at this site.
Using research commissioned by Skift, his office was able to determine that at least two-thirds of the rental activity on the website violated state laws that limit almost all short-term rental activity in New York to 30 days or more, or to homes where the resident is present during the rental. .
