Perturbed ephemeris below is based on elements from MPC 94284. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2458880.50000 2458865.7233319 172.56283 165.20231 20.18968 e q a Epoch (TT) 0.9811047 0.0457819 2.42293 2020/02/01.00
m1 = 20 + 5 logΔ + 10 log r