Epoch 2009 Sept. 6.0 TT = JDT 2455080.5 T 2009 Sept. 1.09936 TT MPC q 0.7801997 (2000.0) P Q n 0.20393034 Peri. 345.43464 +0.99144313 +0.13006476 a 2.8585655 Node 7.11999 -0.10898899 +0.87164881 e 0.7270660 Incl. 5.14782 -0.07184654 +0.47255847 P 4.83
m1 = 17.5 + 5 logΔ + 20.0 log r(t - 10)