Parameter	Null et al. (1981)	Campbell & Anderson (1989)	Jacobson (2004)	This Paper
GMSun/GMsys...	3498.09 ± 0.22	3497.898 ± 0.018	3497.893 ± 0.005	3497.9018 ± 0.0001
GM (km3 s-2)...
System...	37938544.0 ± 2400.0	37940630.0 ± 200.0	37940672.0 ± 59.0	37940585.2 ± 1.1
Saturn...	37929085.0 ± 2400.0	37931272.0 ± 200.0	37931284.0 ± 57.0	37931207.7 ± 1.1
Mimas...	2.50 ± 0.06a	2.50 ± 0.06a	2.55 ± 0.05	2.5023 ± 0.0020
Enceladus...	4.9 ± 2.4b	4.9 ± 2.4b	6.9 ± 1.5	7.2096 ± 0.0067
Tethys...	41.5 ± 0.8a	45.0 ± 10.0	41.21 ± 0.08	41.2097 ± 0.0063
Dione...	70.2 ± 2.2b	70.2 ± 2.2b	73.12 ± 0.02	73.1127 ± 0.0025
Rhea...	151.0 ± 34.0	154.0 ± 4.0	155.0 ± 5.0	153.9416 ± 0.0049
Titan...	9059.0 ± 114.0	8978.2 ± 1.0	8978.1 ± 0.8	8978.1356 ± 0.0039
Hyperion...	1.1	0.0	0.72 ± 0.35	0.3727 ± 0.0045
Iapetus...	129.0 ± 49.0	106.0 ± 10.0	130.0 ± 17.0	120.5117 ± 0.0173
Phoebe...	...	...	0.5 ± 0.2	0.5534 ± 0.0006
J2(×106)...	16299.0 ± 18.0	16298.0 ± 10.0	16292.0 ± 7.0	16290.71 ± 0.27
J4(×106)...	-916.0 ± 38.0	-915.0 ± 40.0	-931.0 ± 31.0	-935.83 ± 2.77
J6(×106)...	81.0	103.0 ± 50.0	91.0 ± 31.0	86.14 ± 9.64
J8(×106)...	...	-10.0c	-10.0c	-10.0c
p (deg)...	40.6076 ± 0.0230a	40.580 ± 0.016d	40.5955 ± 0.0036e	40.58279 ± 0.00201f
p (deg)...	83.5219 ± 0.0036a	83.540 ± 0.002d	83.5381 ± 0.0002e	83.53763 ± 0.00021f
p (deg century-1)...	...	...	-0.04229g	-0.04229g
p (deg century-1)...	...	...	-0.00444g	-0.00444g

     NOTE.—Reference radius for the gravitational harmonics: 60,330 km.
     ^a Adopted from Kozai (1957).
     ^b Adopted from Kozai (1976).
     ^c Theoretical estimate used by Nicholson & Porco (1988).
     ^d Adopted from Simpson et al. (1983).
     ^e At epoch 1980 November 12, 23:46:32, from French et al. (1993).
     ^f At epoch 2000 January 1, 12:00:00.
     ^g Derived from the precession rate of Nicholson et al. (1999).