06/11/30 22:25:56
>>101
答えは、ハワイのオアフ島だ。 北緯２１度２４分 西経１５７度５３分だ。
ついでに発射地点は熱海ではなく、八王子のあたりだな。
PROGRAM vipper
IMPLICIT NONE
REAL :: theta1, theta2, phi1, phi2, alpha, anu, pi
REAL :: rot_z(3, 3), rot_y(3, 3), vec1(3), vec2(3)
CHARACTER :: ns, ew
pi = 4.0 * ATAN(1.0)
alpha = 6242.2 / 6370.0
anu = ( 180.0 - 86.6 ) * pi / 180.0
theta1 = ( 90.0 - ( 35.0 + 40.0 / 60.0 ) ) * pi / 180.0
phi1 = ( 139.0 + 12.0 / 60.0 ) * pi / 180.0
!
rot_z(1, :) = (/ COS(phi1), -SIN(phi1), 0.0 /)
rot_z(2, :) = (/ SIN(phi1), COS(phi1), 0.0 /)
rot_z(3, :) = (/ 0.0, 0.0, 1.0 /)
!
rot_y(1, :) = (/ COS(theta1), 0.0, SIN(theta1) /)
rot_y(2, :) = (/ 0.0, 1.0, 0.0 /)
rot_y(3, :) = (/ -SIN(theta1), 0.0, COS(theta1) /)
!
vec1(1) = SIN(alpha) * COS(anu)
vec1(2) = SIN(alpha) * SIN(anu)
vec1(3) = COS(alpha)
!
vec2 = MATMUL(rot_z, MATMUL(rot_y, vec1))
!