Geolocation Exercises

Merry Christmas, Happy Holidays, Feliz Navidad everyone. Where am I right now....?

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Can anyone find this location in Osaka? There's some UFOs in there too that are probably starlink flares.



Source: https://www.youtube.com/shorts/3vb6_EQ8eWs

I had thought the tower on the right of the video was this, but it doesnt seem to fit:

34.674111°, 135.167282°
View attachment 89700

The shape of the skyline looks like the mountains behind the Minoh area to the north of the city...

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But I can't find a match. Of course the buildings in Google Earth could be out of date.
 
Question about GPS in smartphones. I recently took an iphone photo while in a remote forest area with patchy cell service. I was standing still. The GPS location was off by almost 4km. The next photo I took, 2 mins later, was accurate. The photo with the wrong GPS location was the first one I'd taken that day, but the location it put me at was not somewhere i'd been, although it was near a road we'd driven down the day before. Just wondering if this is a common fault and if we've seen any other examples of this when trying to geolocate images.
 
I think after you wake a phone up (ie to use the camera) it will initially take the position from the celltower location until GPS location becomes available., which can take up to a minute. Did you check the erroneous position to see if it was a cell tower location?
 
Phones generally use A_GNSS

https://en.wikipedia.org/wiki/Assisted_GNSS

Assisted GNSS (A-GNSS) is a GNSS augmentation system that often significantly improves the startup performance—i.e., time-to-first-fix (TTFF)—of a global navigation satellite system (GNSS). A-GNSS works by providing the necessary data to the device via a radio network instead of the slow satellite link, essentially "warming up" the receiver for a fix. When applied to GPS, it is known as assisted GPS or augmented GPS (abbreviated generally as A-GPS and less commonly as aGPS). Other local names include A-GANSS for Galileo and A-Beidou for BeiDou.

A-GPS is extensively used with GPS-capable cellular phones, as its development was accelerated by the U.S. FCC's 911 requirement to make cell phone location data available to emergency call dispatchers.[1]
 
Did you check the erroneous position to see if it was a cell tower location?
So far it seems a bit random. It gave a location near a local cell tower, but not the closest one to my actual position. But maybe it was the last one it remembered? Overpass turbo isn't working well for me at the moment.
 
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