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Table 5.

Lensing parameters of KMT-2024-BLG-1309.

Parameter Static Higher order
u0 > 0 u0 < 0
χ2 10 046.7 10 009.0 10 008.5
t0 (HJD″) 507.044 ± 0.07 507.71 ± 0.06 507.72 ± 0.11
u0 −0.0534 ± 0.0012 0.04296 ± 0.0014 −0.0431 ± 0.0020
tE (days) 44.190 ± 0.081 44.5023 ± 0.111 44.515 ± 0.098
s 1.6181 ± 0.0007 1.6264 ± 0.0015 1.6273 ± 0.0018
q 0.6180 ± 0.0003 0.6102 ± 0.0048 0.6112 ± 0.0052
α (rad) 5.6028 ± 0.0014 −5.6147 ± 0.0013 5.6136 ± 0.0055
ρ (10−3) 0.4679 ± 0.0056 0.4619 ± 0.0062 0.4695 ± 0.0062
πE, N −0.046 ± 0.067 0.036 ± 0.108
πE, E 0.259 ± 0.046 0.261 ± 0.054
ds/dt (yr−1) 0.113 ± 0.096 0.157 ± 0.093
/dt (yr−1 ) −0.3073 ± 0.055 0.234 ± 0.102

Notes. HJD″ = HJD − 2460000.

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