Perturbed ephemeris below is based on elements from MPEC 2021-R75. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2461640.50000 2461626.6163268 159.01040 2.64059 18.90001 e q a Epoch (TT) 0.1038706 4.2411011 4.73269 2027/08/23.00
m1 = 4.0 + 5 logΔ + 20 log r