On a certain parallel, the distance between two meridians is 320 nm. On the equator the distance between the same two meridians is 680 nautical miles. What is the latitude of the parallel?
ANALYSIS OF THE PROBLEM:
If the distance between two meridians at the equator (latitude 0°) is 680 nm, the question then is what will be the latitude if the distance between these two meridians is 320° nm?
SOLUTION:
This is formula: Cos latitude = 320 ÷ 680
Step 1. divide 320 by 680
320 ÷ 680 = 0.47059
Step 2. We have to inverse cosine the answer of step 1.
0.47059 inv Cos = 61° 55.6' N or S is the answer.
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ANALYSIS OF THE PROBLEM:
If the distance between two meridians at the equator (latitude 0°) is 680 nm, the question then is what will be the latitude if the distance between these two meridians is 320° nm?
SOLUTION:
This is formula: Cos latitude = 320 ÷ 680
Step 1. divide 320 by 680
320 ÷ 680 = 0.47059
Step 2. We have to inverse cosine the answer of step 1.
0.47059 inv Cos = 61° 55.6' N or S is the answer.
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how about if the given is time? how to solve the LOP?
ReplyDeleteLines of position (LOP) can be obtained from any of the following:
Delete- Bearing line
- Range line
- LOP taken from celestial observations