I've come across the following problem in Google Maps URLs which I can't find a solution for anywhere: When analyzing Google activity data, the MyActivities.json for Google Maps which results from Maps searches on an Android phone contains URLs like this:
https://www.google.com/maps/@38.2816045,-77.5006055,1198.0381738992166a,30y,217.18h,45t
When I enter this URL in a browser, the URL changes after a few seconds to:
https://www.google.com/maps/@38.2730197,-77.5089001,17z
Note that latitude/longitude have changed slightly.
I have seen the parameters a, y, h, and t before only in Streetview, see e.g. this question. What is their meaning in "regular" Google Maps URLs and why do they change lat/lon?
Thanks in advance for any ideas/help!