I would bet that the US, RUSSIA and China et al have infrared detection satellites that probably did locate it, they just didn’t say anything.................
You can bet we do and the super computers and AI programs to analyze the data.
The *spook* tech is probably well beyond my imagination now and I knew a little bit about such, back in the day :)
Could be nobody wants to show their hand on what they can do in too obvious or quick a way.
And then you have to remember we have an idiot in charge to boot, who wants this stuff to occupy the news cycle rather than *other* things.