5 ms·
Looks to be about half a kilometer. The webcam looks to be at about 63.89045405043735, -22.279054215941507 and the main crater is at about 63.88921695342744, -2
by asgeir 5y ago
Looks to be about half a kilometer. The webcam looks to be at about 63.89045405043735, -22.279054215941507 and the main crater is at about 63.88921695342744, -22.269097856211175
The main crater is only a few tens of meters tall.
- jstanley 5y agoAbout?! The 14th decimal place of latitude is worth ~0.15mm!
- adwn 5y agoAlthough that might have been tongue-in-cheek, the word "about" could refer to the accuracy of the position, not its precision. Precision != accuracy: https://en.wikipedia.org/wiki/Accuracy_and_precision https://en.wikipedia.org/wiki/Accuracy_and_precision
- elcomet 5y agoBut the number of digits should reflect the precision.
- unhammer 5y agoWhen pointing at a map, the thickness of your digits should reflect precision.
- airhead969 5y agoHow accurate are your digits?
- airhead969 5y agoYes. If it's only 5 digits, it should be cut-off to reflect that. Accuracy needs an error estimate.
- Moru 5y agoIt's hard if you don't know the precision needed to get to the position you want, easier to just copy/paste and be done with it. How many knows how far 0.001 deg is at a specific location on the globe?
- asgeir 5y agoI find it hard to estimate the position from the top-down view compared to when I was there, and I just copy-pasted the coordinates from Google Maps
- airhead969 5y agoThe smallest possible resolution of GPS in the horizontal is 10mm (6-7 digits) with local differential corrections. In general, 4-5 digits is the precision to expect.
- jstanley 5y agoHm, then I think my calculation that the 14th digit is worth 0.15mm must be wildly incorrect. For a 40km earth circumference, I worked out 10^-14 * 360 * 4*10^7 = 0.00014 metres.
- schoen 5y agoI think you want to divide by 360 instead of multiplying by 360 - when you divide by 360, you should get the linear distance represented by one degree of latitude or longitude.