SUBSIM Radio Room Forums - A bit of help in geocoordinates

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A bit of help in geocoordinates

Need help with this:

Possibly many of you know about geocaching; today 2 friends of mine show me a one cache that has two codes to decifer to find the coordinates. The first code was in brainf*ck language and then the second one has the coordinates like this S 40º E 171º and says to do the antipodes of that but with this (180º= 171 59.1000).

This last one is the help I need. Anyone know what kind of coordinates this is? My idea was the 180º be a bearing.

Do you have Google Earth?

But otherwise, you can add, add-ons on firefox, or search directly on google to get the geography, latitude-longitude, :yep:

But this part 180º= 171 59.1000 that I need help, at least figuring out what they mean!

It suggests the degree, but I'll look at them ...

Antipodes are right beneath somewhere on the opposite side of the earth. (aka Nadir, as opposed to Zenith, which is right above you) The latitude number stays the same, but north becomes south, and vice-versa.

171 degrees east becomes 351 degrees east (=171+180), which is equivalent to 9 degrees west from the Greenwich meridian. (=360-351) After 180 degrees the numbers go back to zero but with the opposite name (east instead of west, and vice versa)

I don't quite understand what to make of the 171 59.1000 value. I mean, the 59.1 arcminute part at least. I don't see how one can derive it from that.

Basically you are looking for something 154 kilometers (83 nautical miles) north of Lisbon, Portugal, 7 kilometers (3.6 nautical miles) into the Atlantic Ocean. If you want to locate something specific then you need more precise coordinates. But there is a funny road pattern near there.

Quote:

Originally Posted by Pisces (Post 1674579)

About the last paragraph, it has to be in land. Normally the coordinates for the caches here are N 40° 11.204 W 008° 25.578.

Quote:

Originally Posted by Pisces (Post 1674579)

...7 kilometers (3.6 nautical miles) into the Atlantic Ocean.

Might need that sub after all.

Well, even if I add 171d59.1min to 171 degrees east, I come to 8d0.9min West. At 40 degrees North you are near the town of Trinhao ("a" with a swirly wave thingy on top of it) Other than an (olive?) plantation or some other sort of tree farm, I don't see what's so special about it.

If you subtract 171d.59.1min from 171 degrees east, I come to 0d59.1min West. Or 0d59min6sec west, which is a sparse forrest 3.5km southwest of a town called Torrijas, Spain. There are peculiar empty strips of land in between the trees.

Without clearer indication of what the coordinates are I can't help further. Also how close are you supposed to get with your answer? At 40 degrees north 1 minute of longitude is 1.4 km long!

None, since this was a help for a friend. It may be that the second coordinates after solving the ridle or code, may be near the location of the first ones.
I thank all of you and will tell she what you posted.

What's the cache reference number so I can look at the puzzle. GC.....