I need the point coordinates in the tweets where geolocation is available. Does Twitter provides point coordinates too along with Bounding Box coordinates? If yes, how many of tweets are having point coordinates among all the tweets or how many tweets have both point as well as bounding box coordinates among whole?
Very few tweets had point coordinates when they were enabled (Typically less than 1% of tweets), and now the only ones are posts with media, exact geo was turned off:
See http://www.casos.cs.cmu.edu/publications/papers/Twitter_geo_asonam_final.pdf for some good details.
I would restrict searches to the time periods when point coordinates were enabled: Between March 2010 and April 2015 is when most of them would be, because later than that - changes were made to the UI and settings to reduce the number of geo tagged tweets.
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