Perturbed ephemeris below is based on elements from MPEC 2020-SI8. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2458800.50000 2458802.5176698 14.66547 97.19807 6.39594 e q a Epoch (TT) 0.7265799 1.8018437 6.59002 2019/11/13.00
m1 = 7.5 + 5 logΔ + 25.0 log r