Deleted
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Post by Deleted on May 18, 2014 14:08:24 GMT
Anybody else notice some of your rode details changing a short while after upload. Did a 27 mile ride there and after uploading I came out with 1600 odd feet of elevation at 15mph. Half an hour later I check the ride again and it refreshes with 1080ft of elevation and a 15.1 average. Over longer rides the revisions be larger and usually always a chunk off elevation and a boost in average.
Anyone else notice.
I'm tracking my rides using the app on my Google Nexus 5.
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Post by ianmoss on May 18, 2014 14:24:52 GMT
I've just noticed the iphone app shows far steeper gradients on a segment than the online version.
I believe the app. LoL
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Deleted
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Post by Deleted on May 18, 2014 14:32:49 GMT
Ha it's always disheartening to see 600 odd feet wiped off my ride. Strava must be doing some sort of calibrations in the background or something.
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Post by Steph on May 18, 2014 14:48:46 GMT
I always lose elevation shortly after uploading a ride. Not sure which number is right, I like to think the original but I tend to believe the revised numbers especially as they tend to correspond to what Garmin Connect eventually spits out
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Deleted
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Post by Deleted on May 18, 2014 15:25:36 GMT
I think it fine tunes the data after upload. The updated data seems to be bob on.
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Post by Deleted on May 18, 2014 15:51:40 GMT
I've found differences between the (android) Strava mobile app. and the data collected on my Garmin 200. Not just time and distance which is likely down to satellite errors but I can record different segments using both I.e. On one device I have ridden the segment but not the other. The Garmin unit more accurately follows the path I have ridden so I only upload data from the now.
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Post by william39 on May 18, 2014 17:17:39 GMT
I'm using the Android app and normally elevation goes up slightly when corrected.
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tri5
Peloton Rider
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Post by tri5 on May 18, 2014 17:23:12 GMT
After you upload the data to Strava look just below the where it says elevation. Sometimes there will be a little box appear telling you to refresh the screen in a while as it is calculating the actual ascent.
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Post by goffski on May 19, 2014 9:48:00 GMT
My Strava data is never the same as Cyclemeter, i've noticed the elevation always seems to be more once in Strava and quick ofter it's increased once i go back into Strava.
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Post by wardyuk on May 20, 2014 18:25:12 GMT
I use the android app, and cycle mostly with my mate, who uses an iphone app. we haven't yet done a ride together where the stats are the same. You can guarantee that distance, ascent and average speed are always different - and usually by significant amounts...
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Post by Rocket on May 20, 2014 18:38:08 GMT
That's the normal Apple effect. Letting their customers think their phone is better has continued into bigger distances, higher climbs and faster speeds Seriously, it's just GPS locations time-stamped. The clocks are usually good enough so that leaves only GPS errors. And they said it was accurate to 10m at ground level....
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Post by jondxxx on May 20, 2014 19:47:52 GMT
My understanding is that when you finish a ride your device will show elevations derived from GPS etc. When you upload to Strava your route is matched to known topographical data where possible and corrected accordingly.
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Deleted
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Post by Deleted on May 20, 2014 20:40:39 GMT
Three of us used Strava at the weekend in a small group each with different results by the end of the ride. Distance was out by 0.4 miles on a 52 mile ride and around 50ft on 1650ft elevation wise.
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Deleted
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Post by Deleted on May 20, 2014 22:32:45 GMT
I can handle differences between me and other people on the same ride as long as my own data is consistent. So far this has been the case. Strava is a tracking and training tool so as long as I can compare with past rides then I'm happy.
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Post by Radchenister on May 21, 2014 7:05:53 GMT
When I was young the personal communicators on Star Trek were almost unbelievably futuristic, now people are unhappy when their smart phones record slight discrepancies from a number of satellites offering data to Earth. Locations are derived from plotting large radius geometries, allowing a device and software to pinpoint its own position in time, whilst we all spiral through space on a big rock. All done via bouncing info through the planet's atmosphere to devices the size of a matchbox (Garmin) or postcard (phones) on the planet surface - Strava is a motivational tool, not something to set your boundary fences out with, count your blessings I reckon .
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