What are Various methods of obtaining PL or Position line?

  1. A visual bearing of a terrestrial object.
  2. Transit bearing (Two terrestrial object in a line)
  3. Bearings and ranges obtained by radar.
  4. A circle of position obtained from a vertical sextant angle.
  5. A circle of position obtained from a horizontal sextant angle.
  6. A observation of a celestial body giving the position line. 

ANUBHAV GAUTAM

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