Measured distances including their sign and possible orbit fits. The violet curve shows a representative orbit solution that was required to at least reproduce visits A–5 (a = 106.5 km, e = 0.46, t_p = 25.83 d, T = 117.4 d, α₀ = 0.0°, M_S = 6.94 × 10¹² kg). The green curve shows a representative solution that was required to reproduce visits 13–22 and 24 (a = 107.5 km, e = 0.46, t_p = 19.00 d, T = 119.0 d, α₀ = 0.0°, M_S = 6.95 × 10¹² kg). The perihelion passage took place between visits 7 and 8 on DOY=314.