T 1998 Jan. 13.26 TT Marsden q 0.0051 (2000.0) P Q Peri. 89.46 +0.18136 -0.97468 Node 12.49 -0.95206 -0.20733 e 1.0 Incl. 142.79 +0.24634 -0.08370 >From 17 observations 1998 Jan. 12-13.
m1 = 20.5 + 5 logΔ + 10 log r