Perturbed ephemeris below is based on elements from MPEC 2023-R20. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2461760.50000 2461763.0436141 214.81267 52.04491 6.21047 e q a Epoch (TT) 0.6997145 0.9187124 3.05946 2027/12/21.00
m1 = 11.5 + 5 log d + 15.0 log r