Make the tablet of more use by having it remember the inscribed avatar name so you can periodically recheck it throughout the twenty four hour cooldown.
It's only designed to show where a specific Avatar was at one moment in time. If it did remember the name, it would need to say something like "Soandso was in Excellent Scene on Septembre 8, 562 P.C. (March 28, 2019 at 10:28am)", since it wouldn't update to show the current scene.
Which is why I rarely use it, the few times I have resulted in location:Earth ie not logged in. My suggested change would lock it to one avatar name per cooldown but update their location when you use it before the cooldown expires.