Line of Position
This screen shows your line of position (LOP), calculated from your sextant reading and time of sight.
The green dot shows your position, with the green line showing you are heading East in this case.
The red line is your line of position, with the cross showing the closest point on the line of position to your initial estimated position.
On the left, the position of the cross is given, together with a list of points that lie on the line of position, which helps you plot the LOP onto a chart, should you so wish.
At the bottom, the azimuth and intercept - the bearing and distance from your estimated position to the red cross - are given.
If you are satisfied with the sight, then edit the comment if you wish, and click on the Accept button. This will update your DR position and also make an entry into the sight log.
If you are not satisfied (for example if the intercept is excessively high, indicating a poor sight), then just click on Close.
To calculate a position from two sights, whether a running fix or two sights taken on different bodies at about the same time, just repeat the sight process for each sight you take. The X marking your position is effectively a combination of your current sight and the previous one.
Line of Position
This screen shows your line of position (LOP), calculated from your sextant reading and time of sight.
The green dot shows your position, with the green line showing you are heading East in this case.
The red line is your line of position, with the cross showing the closest point on the line of position to your initial estimated position.
On the left, the position of the cross is given, together with a list of points that lie on the line of position, which helps you plot the LOP onto a chart, should you so wish.
At the bottom, the azimuth and intercept - the bearing and distance from your estimated position to the red cross - are given.
If you are satisfied with the sight, then edit the comment if you wish, and click on the Accept button. This will update your DR position and also make an entry into the sight log.
If you are not satisfied (for example if the intercept is excessively high, indicating a poor sight), then just click on Close.
To calculate a position from two sights, whether a running fix or two sights taken on different bodies at about the same time, just repeat the sight process for each sight you take. The X marking your position is effectively a combination of your current sight and the previous one.