The phrase "at its situation" is not correct and does not convey a clear meaning in written English.
It is unclear what context you are trying to express, as "situation" typically requires a different preposition or phrasing.
Example: "The project is evaluated at its current status."
Alternatives: "in its context" or "in its circumstances."
The preceding equation means that it is possible to predict the financial situation of firm i at time t using its situation at time t-1 and some exogenous variables z it.
"The auto industry may be partly at fault for its situation, but not entirely".
At the outbreak of the Civil War in the spring of 1861, Cairo became a town of some strategic importance because of its situation at the confluence of the Ohio and Mississippi rivers.
Instead of changing its situation at different times to pander to its needs, you can interplant it amongst slow growers like Brussels sprouts for sun now and shade later.
The city benefited both from its direct connection by river with Timbuktu and from its situation at the head of the trade routes to the gold mines of Bitou (now in Côte d'Ivoire), to Lobé, and to Bouré; it was also an important entrepôt for salt.
Rotterdam, which had actually been largely destroyed in the course of the 1940 invasion was to be rebuilt as the most important port-city in the "Germanic area" due to its situation at the mouth of the Rhine river.
Its situation at the end of a steep gradient in the tunnel meant there was the constant risk that an out-of-control train would run through the station onto the beach, as happened on 3 August 1891 and 24 March 1915.
For us, the Adlon's location is ideal - turn right out the door, keep going along Unter den Linden, and you'll soon arrive at Museum Island - and its situation right near the Brandenburg Gate and the former East-West border is a good reminder of how far things have progressed since the wall came down in 1989.
As part-time faculty members (not covered by the ruling) and graduate teaching assistants unionize, the professoriate at private institutions is reassessing its situation.
Both its characters and its situations at first appear robust and real, and Schwartz seems genuinely interested in exploring their moral complexity.
