2019-09-03

SPK file prepared by: Valery Lainey (lainey@imcce.fr)
 
This file provides JPL/IMCCE ephemeris "NOE-6-2018-MAIN-v2.bsp" of the eight main Saturnian moons
(Mimas, Enceladus, Tethys, Dione, Rhea, Titan, Hyperion, Iapetus).
 
Ground based, Voyager, HST and Cassini astrometric data were used in the fit.

Covered period: 1870-2052

Polynomial degree: 20
 
The accuracy of Chebychev representations is better than 20 m (position) and 3.6d-6 km/day (velocity) for all moons.

Reference: Lainey et al. submitted 

 
GMs:
37931322.6256016  +/- 9.13934883042525         (Saturn)
2.50361567349312  +/- 2.154593359403621E-005   (Mimas)
7.20736749379373  +/- 2.728509636868333E-003   (Enceladus)
41.2134496289536  +/- 1.087089354548130E-004   (Tethys)
73.1161583815711  +/- 5.772430080935285E-005   (Dione)
153.910185594341  +/- 0.364354366756117        (Rhea)
8978.11537332073  +/- 8.692595050915262E-002   (Titan)
0.443030634987428 +/- 8.387764842616938E-002   (Hyperion)
127.467858707731  +/- 4.62859986611416         (Iapetus)

 
J2:  1.629045323885759E-002 +/- 5.726226819352542E-007
J4: -9.412923781284972E-004 +/- 6.913672913625634E-006
J6:  6.080109445357477E-005 +/- 2.592515199831447E-005
 
 
Pole (J2000 epoch):
RA0:    40.58180962126801     +/- 0.00029687110647996394
RAdot:  -0.05185052862986046  +/- 0.002788193350551259
DE0:    83.53764236439721     +/- 3.531177782902457e-05
DEdot:  -0.003923170523152044 +/- 0.0003286489265611484
 
 
Forced Nutation model (from sat382.bsp kernel):
3.394578618432000E-02   2.194615419925000E-03  1.296857669242000E-02   !amp RA
3.820609911629000E-03   2.470047204107000E-04  1.296857669242000E-02   !amp DE
5.109270184845000E+01   1.046981232614000E+01  0.000000000000000E+00   !degrees / Julian century
3.362827860448000E+02   3.393234943155000E+01  1.065902989076000E+02   !phase degrees
 
 
k2: 0.381844485299200 +/- 5.723461526937057E-003

 
1/Q:
1.395989070504224E-004 +/- 8.562523420151275E-005 (Mimas)
8.736717909955925E-004 +/- 4.160058708279343E-005 (Enceladus)
1.457310743243154E-004 +/- 2.045932221437600E-005 (Tethys)
2.989706806469259E-004 +/- 7.217159370967345E-005 (Dione)
3.680917653710901E-003 +/- 2.953634361651983E-004 (Rhea)
1.786016415242906E-002 +/- 5.120475781216291E-003 (Titan)
 
 
SPK file was generated on Mac OS-X.
 
Questions, comments or special requests should be sent to V.Lainey (lainey@imcce.fr)
 
---------------------------------------------------------------------------------------------------------------------
VL's research was supported by an appointment to the NASA Postdoctoral Program at the NASA Jet Propulsion Laboratory,
California Institute of Technology, administered by Universities Space Research Association under contract with NASA.
 

	Name	Last modified	Size	Description
	Parent Directory		-
	NOE-6-2018-inner.tpc	2021-01-11 08:00	1.1K
	NOE-6-2018-inner.bsp	2021-01-11 08:00	213M
	NOE-6-2018-MAIN-v2.tpc	2020-02-12 15:17	1.2K
	README.txt	2019-09-05 09:57	2.7K
	LISEZMOI.txt	2019-09-05 09:56	2.9K
	NOE-6-2018-MAIN-v2.bsp	2019-08-28 13:02	212M