Eclipse usage patterns

Stephen Trainor
Aug 28, 2017 · 1 min read

Here’s the geographic distribution of TPE usage on the day of the total eclipse last week:

TPE for iOS Geographic Distribution, Aug 21 2017

By way of comparison, here’s the same view but for the period of July 29 to Aug 28, 2017:

TPE for iOS Geographic Distribution, Jul 29 — Aug 28 2017

Mobile data traffic handling means that major aggregation points somewhat mask the finer detail, but I think you can still make out the line of totality in the top map, stretching from NW to SE across the country, particularly the chain of dots through Wyoming and Nebraska.

It’s also easy to tell that the eclipse was a late morning event for many users:

Users by hour of day, Aug 21 2017

The Photographer’s Ephemeris

The Photographer’s Ephemeris (TPE) is a tool to help you plan outdoor photography in natural light, especially landscape and urban scenes. It is a map-centric sun and moon calculator: see how the light will fall on the land, day or night, for any location on earth.

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Stephen Trainor

Written by

Software, photography and music. Maker of @photoephemeris.

The Photographer’s Ephemeris

The Photographer’s Ephemeris (TPE) is a tool to help you plan outdoor photography in natural light, especially landscape and urban scenes. It is a map-centric sun and moon calculator: see how the light will fall on the land, day or night, for any location on earth.

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