Perturbed ephemeris below is based on elements from MPEC 2025-DP4. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2460680.50000 2460685.4138938 116.67083 339.66250 49.77134 e q a Epoch (TT) 1.0045503 5.3976695 2025/01/05.00
m1 = -0.6 + 5 log d + 20.0 log r(t - 100)