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Math Help - Question about GPS Coordinates

  1. #1
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    Question Question about GPS Coordinates

    Hi all,
    Just joined the site and have a question. I don't know if this is a question for the trigonometry forum but I'm not sure where to ask. I have a question about GPS coordinates (degrees, minutes and seconds). I have to find a spot and need to add 73 minutes to the minutes of the coordinates 071* 59.922 and add 10 minutes to the minutes of the coordinates 40* 58.647 to come up with the correct coordinates but I was never very good at math. I know once the minutes exceed 60 you have to add to the degrees but I'm having trouble with the conversion. Any help would be greatly appreciated.

    Thanks
    Last edited by Sarnick; February 7th 2010 at 04:51 AM.
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  2. #2
    No one in Particular VonNemo19's Avatar
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    Quote Originally Posted by Sarnick View Post
    Hi all,
    Just joined the site and have a question. I don't know if this is a question for the trigonometry forum but I'm not sure where to ask. I have a question about GPS coordinates (degrees, minutes and seconds). I have to find a spot and need to add 73 to the minutes of the coordinates 071* 59.922 and add 10 to the minutes of the coordinates 40* 58.647 to come up with the correct coordinates but I was never very good at math. I know once the minutes exceed 60 you have to add to the degrees but I'm having trouble with the conversion. Any help would be greatly appreciated.

    Thanks
    What do you mean by 071* 59.922? Give it to me in word form.
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  3. #3
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    Thanks for replying; it would be 71 degress, 59 minutes and 922 seconds West and 40 degrees, 58 minutes and 647 seconds North. The seconds don't matter for this problem.
    Last edited by Sarnick; February 6th 2010 at 06:51 PM.
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  4. #4
    No one in Particular VonNemo19's Avatar
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    Quote Originally Posted by Sarnick View Post
    Thanks for replying; it would be 71 degress, 59 minutes and 922 seconds North and 40 degrees, 58 minutes and 647 seconds west. The seconds don't matter for this problem.
    OK. 73'+59'=132'. Note that 132'\div60'=2^\circ\frac{1}{5}^\circ

    But \frac{1}{5}^\circ=\frac{60}{5}'=12'

    Can you see where I'm going?
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  5. #5
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    Thanks for trying to help but your confusing me more. LOL! Here's an example; If the number you had to add to the West coords was 62 then the answer would be 73 degrees, 01 minutes and 922 seconds. I was never any good at math and thanks for your time.

    Does this help?
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  6. #6
    No one in Particular VonNemo19's Avatar
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    Quote Originally Posted by Sarnick View Post
    Thanks for trying to help but your confusing me more. LOL! Here's an example; If the number you had to add to the West coords was 62 then the answer would be 73 degrees, 01 minutes and 922 seconds. I was never any good at math and thanks for your time.

    Does this help?
    I'll try again...

    79^\circ{\color{red}59'}92.2''+{\color{red}73'}=79  ^\circ{\color{red}132'}92.2''.

    Now, understand that there are 60' in 1^\circ, so we have to make the thing proper by determining how many minutes we can get out of 132 seconds.

    The answer is 2 minutes with 12 seconds left over, so our final answer:

    81^\circ{\color{red}12'}92.2''+{\color{red}73'}
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  7. #7
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    OK so would it be 073* 12.922?

    The answer is going to be 073* ?.922

    81* is to high. The coords are going to be 073* something.922

    How about the north coords?
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  8. #8
    No one in Particular VonNemo19's Avatar
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    Quote Originally Posted by Sarnick View Post
    OK so would it be 073* 12.922?

    The answer is going to be 073* ?.922

    81* is to high. The coords are going to be 073* something.922

    How about the north coords?
    Oh wait, I've just read your first post again and, I'm sorry but I can see now that you meant that you wanted to add 73 minutes to 71 degrees and 59.992 minutes. This changes things.

    So, we have 71^\circ59.992'+73'=71^\circ132.992'=73^\circ12.99  2'
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  9. #9
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    Yes I believe 073* 12.922 West and 41*.08.647 North are correct!

    Anybody else??

    Thank you very much VonNemo19
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