Latitude X Y 0° 1.0000 0.0000 5° 0.9986 0.0620 10° 0.9954 0.1240 15° 0.9900 0.1860 20° 0.9822 0.2480 25° 0.9730 0.3100 30° 0.9600 0.3720 35° 0.9427 0.4340 40° 0.9216 0.4958 45° 0.8962 0.5571 50° 0.8679 0.6176 55° 0.8350 0.6769 60° 0.7986 0.7346 65° 0.7597 0.7903 70° 0.7186 0.8435 75° 0.6732 0.8936 80° 0.6213 0.9394 85° 0.5722 0.9761 90° 0.5322 1.0000