Perturbed ephemeris below is based on elements from MPEC 2022-M21. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2458560.50000 2458544.1703728 0.00262 78.38410 69.00011 e q a Epoch (TT) 0.9848166 3.1988995 210.68349 2019/03/18.00
m1 = 12.2 + 5 logΔ + 10.0 log r