Difference between revisions of "2014-02-04 47 -122"

From Geohashing
imported>Thomcat
([live picture] [http://www.openstreetmap.org/?lat=47.74794198&lon=-122.34203385&zoom=16&layers=B000FTF @47.7479,-122.3420])
imported>FippeBot
m (Location)
 
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== Expedition ==
 
== Expedition ==
<!-- how it all turned out. your narrative goes here. -->
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Swung by, took a photo of the front of the house, then looped around to park near the house, the better to validate re-calibration of Geohash Android. House is not for sale, geohash point is in the back yard by the shed, expedition ends there (unless the owner reads this website today and claims couch potato).
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== Calibration ==
 +
Assuming Google Maps and Bing Maps are able to reflect a Latitude/Longitude near Seattle correctly:
 +
* The number posted on the photo was highly accurate, showing where I was parked on the street.
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* The number posted to the webpage was inaccurate - resulting in the corner of the house.
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::Update - this is the best accuracy for only 4 digits after the decimal point, so they essentially match. 4 digits gets us roughly 8 meters; 5 digits gets us to within 8/10ths of a meter, according to [https://en.wikipedia.org/wiki/Decimal_degrees#Accuracy Wikipedia (Decimal Degrees of Accuracy)].
  
 
== Photos ==  
 
== Photos ==  
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[[Category:Expedition planning]]
 
 
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[[Category:Not reached - Mother Nature]]
 
 
 
When there is a man-made obstacle between you and the target:
 
 
[[Category:Not reached - No public access]]
 
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{{location|US|WA|KN}}
When you failed get your GPS, car, bike or such to work:
 
[[Category:Not reached - Technology]]
 
   
 
When you went to an alternate location, or decided early on to abort the expedition:
 
[[Category:Not reached - Did not attempt]]
 
 
 
(Don't forget to delete this final close comment marker) -->
 

Latest revision as of 05:25, 14 August 2019

Tue 4 Feb 2014 in Seattle:
47.7476221, -122.3417716
geohashing.info google osm bing/os kml crox


Location

The backyard of 16341 Interlake Ave North in Shoreline.

Participants

Plans

Check it out on the way to work - roughly 7:40 am.

Expedition

Swung by, took a photo of the front of the house, then looped around to park near the house, the better to validate re-calibration of Geohash Android. House is not for sale, geohash point is in the back yard by the shed, expedition ends there (unless the owner reads this website today and claims couch potato).

Calibration

Assuming Google Maps and Bing Maps are able to reflect a Latitude/Longitude near Seattle correctly:

  • The number posted on the photo was highly accurate, showing where I was parked on the street.
  • The number posted to the webpage was inaccurate - resulting in the corner of the house.
Update - this is the best accuracy for only 4 digits after the decimal point, so they essentially match. 4 digits gets us roughly 8 meters; 5 digits gets us to within 8/10ths of a meter, according to Wikipedia (Decimal Degrees of Accuracy).

Photos