Epoch 2005 Apr. 20.0 TT = JDT 2453480.5 T 2005 May 3.25821 TT MPC q 1.9808483 (2000.0) P Q n 0.14529402 Peri. 69.05285 +0.37818445 -0.92573012 a 3.5834738 Node 358.72553 +0.84035950 +0.34354541 e 0.4472268 Incl. 1.34843 +0.38829426 +0.15811484 P 6.78 The resulting nongravitational parameters are A1 = -2.79 +/- 0.27, A2 = +1.1966 +/- 0.2612, A3 = -2.2588 +/- 0.0268.
m1 = 14.5 + 5 logΔ + 10 log r(t - 200)