# I_ogle3 - R_moa = a + b * (V_moa - R_moa)
# V_ogle3 - V_moa = c + d * (V_moa - R_moa)
     28.15171811       0.00776374   # a
     -0.21325299       0.00475027   # b
     28.61947692       0.00773637   # c
     -0.09935941       0.00473825   # d