Perturbed ephemeris below is based on elements from MPEC 2021-W31. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2459360.50000 2459361.8443280 3.06653 304.25639 19.93713 e q a Epoch (TT) 0.3318015 2.5256793 3.77983 2021/05/26.00
m1 = 15.5 + 5 logΔ + 10.0 log r