Table 3: Forced precession model for 46P/Wirtanen 1948-1999.
Epoch 2003 Dec. 27.0 TT

T 2002 Aug. 26.62046 Aug. 26.61928

$\omega$ 356.37262 356.37450

$\Omega$ 82.16978 82.16775

I 11.73824 11.73849

q 1.0586022 1.0586088

e 0.6577448 0.6577425

$A_{\rm I}$ +0.5207 $\pm 0.0067$ +0.6010 $\pm 0.0097$

$A_{\rm II}$ +0.7093 $\pm 0.0021$ +0.7629 $\pm 0.0077$

$\eta$ 17.65 $\pm 0.11$ 13.00 $\pm 0.46$

I₀ 145.07 $\pm 0.79$ 152.01 $\pm 0.56$

$\phi_0$ 284.46 $\pm 2.19$ 317.34 $\pm 3.36$

f_p +0.5293 $\pm 0.0137$ +0.7464 $\pm 0.0189$

s +0.1861 $\pm 0.0066$ +0.2445 $\pm 0.0120$

$\tau$ - -7.75 $\pm 0.84$

rms 1''53 1''53

Notes: $A_{\rm I}$ and $A_{\rm II}$ are in 10^-8 AU/day², the angular parameters $\eta$ ,
I₀ and $\phi_0$ are in degrees, $f_{\rm p}$ is in 10⁶ day/AU, s and $\tau$ are in days.
$A_{\rm I}$ was applied before and $A_{\rm II}$ after 1971.

**Table 3:** Forced precession model for 46P/Wirtanen 1948-1999.
Epoch	2003 Dec. 27.0 TT
T	2002 Aug. 26.62046	Aug. 26.61928
$\omega$	356.37262	356.37450
$\Omega$	82.16978	82.16775
I	11.73824	11.73849
q	1.0586022	1.0586088
e	0.6577448	0.6577425
$A_{\rm I}$	+0.5207 $\pm 0.0067$	+0.6010 $\pm 0.0097$
$A_{\rm II}$	+0.7093 $\pm 0.0021$	+0.7629 $\pm 0.0077$
$\eta$	17.65 $\pm 0.11$	13.00 $\pm 0.46$
I₀	145.07 $\pm 0.79$	152.01 $\pm 0.56$
$\phi_0$	284.46 $\pm 2.19$	317.34 $\pm 3.36$
f_p	+0.5293 $\pm 0.0137$	+0.7464 $\pm 0.0189$
s	+0.1861 $\pm 0.0066$	+0.2445 $\pm 0.0120$
$\tau$	-	-7.75 $\pm 0.84$
rms	1''53	1''53

Source LaTeX | All tables | In the text

	1 Introduction
	2 Orbit model
	3 Applications to satellites and comets
	4 Conclusions
	References
	Online Material
	Appendix: Two-body partials