Perturbed ephemeris below is based on elements from MPEC 2011-V31. Epoch (TT/JD) T (TT/JD) Peri. Node Incl. 2448160.50000 2448180.1874827 219.93551 130.19536 32.61606 e q a Epoch (TT) 0.3144747 3.1866289 4.64845 1990/09/26.00
m1 = 10.5 + 5 log d + 10.0 log r(t - 200)