Perturbed ephemeris below is based on elements from MPEC 2022-YB4. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2459080.50000 2459075.5821451 304.00346 337.61994 26.67418 e q a Epoch (TT) 0.9585722 5.6961845 137.49668 2020/08/19.00
m1 = 8.5 + 5 logΔ + 10.0 log r