When obtaining a coastal position fix using simultaneous cross bearings (demoras cruzadas), what is the ideal angle of intersection between two lines of position (LOPs), and what does a 'cocked hat' (triángulo de error) indicate when three LOPs are plotted?

1. 90° between two LOPs (or 60°/120° among three LOPs); the triangle indicates minor measurement/compass errors, with the true position usually within the triangle
2. 180° between two LOPs; the triangle indicates complete GPS satellite signal corruption
3. 30° between two LOPs; the triangle proves that one of the charted landmarks has shifted position
4. 0° between two LOPs; the triangle represents the vessel's turning radius during the maneuver