Erecting the 150cm (1.5m) Solar Cooker Dish at LRO, and calculating its focal length 28/9/2024
Here is a photo of the dish erected at LRO:
Using Parabola Calculator 2 program (Parabola Calculator version 2.0 (tripod.com) https://mscir.tripod.com/parabola/), the dimensions and focal length of my solar cooker dish =
Linear Diam. 159.65
Diameter 150.00cm
Depth 24.00cm
Focal Length 58.59cm
f/D = 0.39
Volume 212057.50
FLength/Diam 00.39
Area 17671.46
x -75.00 y 24.00
x -65.63 y 18.38
x -56.25 y 13.50
x -46.88 y 9.38
x -37.50 y 6.00
x -28.13 y 3.38
x -18.75 y 1.50
x -9.38 y 0.37
x 0.00 y 0.00
x 9.38 y 0.37
x 18.75 y 1.50
x 28.13 y 3.38
x 37.50 y 6.00
x 46.88 y 9.38
x 56.25 y 13.50
x 65.63 y 18.38
x 75.00 y 24.00