Are you using the webAPI to save the metadata into the still image?
https://github.com/ricohapi/theta-api-specs/blob/main/theta-web-api-v2.1/options/gps_info.md
If so, post the snippet that you are using to store the information.
example:
{
"gpsInfo": {
"lat": 23.532,
"lng": 23.532,
"_altitude": 999.00,
"_dateTimeZone": "2014:05:18 01:04:29+08:00",
"_datum": "WGS84"
}
}
Is the difference in the GPS coordinate due to the time taken to stitch and save the image inside the camera?
There is a discussion on the creation time and modification time.
EXIF Tag Documentation - #5 by craig
You may be able to get more information on the difference by opening an issue on GitHub on the API specification section.
https://github.com/ricohapi/theta-api-specs/tree/main/theta-web-api-v2.1