Perturbed ephemeris below is based on elements from MPEC 2025-DP4. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2459760.50000 2459776.2185941 48.35627 250.27266 163.58500 e q a Epoch (TT) 1.0051487 8.8170997 2022/06/30.00
m1 = -11.5 + 5 logΔ + 25 log r