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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1671865619125511 | 2.0262e-08 | |
a | 3.999876513961206 | 2.2535e-08 | au |
q | 3.331150911517272 | 8.5703e-08 | au |
i | 3.332616595323894 | 9.1385e-07 | deg |
node | 49.85531903586414 | 9.394e-06 | deg |
peri | 307.4347429312403 | 9.9674e-06 | deg |
M | 133.9597388469623 | 6.4353e-06 | deg |
tp | 2458113.223268268778 (2017-Dec-25.72326827) | 4.9571e-05 | TDB |
period | 2921.919875272405 8.00 | 2.4693e-05 6.761e-08 | d yr |
n | .1232066638947236 | 1.0412e-09 | deg/d |
Q | 4.66860211640514 | 2.6303e-08 | au |
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| | Orbit Determination Parameters
Additional Information
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[ show covariance matrix ]
Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
10.07 |
|
n/a |
E2021B10 |
|
diameter |
diameter |
54.93 |
km |
2.6 |
IRAS-A-FPA-3-RDR-IMPS-V6.0 |
IRAS observations used: 12 |
rotation period |
rot_per |
9.558 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List: [Dahlgren, M.; Lahulla, J.F.; Lagerkvist, C.-I.; Lagerros, J.; et al. (1998) Icarus 133, 247-285.] [Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.] [Warner, B.D.; Stephens, R.D. (2020) Minor Planet Bull. 47, 196-199.] |
geometric albedo |
albedo |
0.0337 |
|
0.003 |
IRAS-A-FPA-3-RDR-IMPS-V6.0 |
IRAS observations used: 12 |
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1202 Marina (1931 RL) Discovered 1931-Sep-13 by Neujmin, G. at Simeis |
Independent discovery Sept. 15 by K. Reinmuth, Heidelberg, was announced first. |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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Alternate Designations
1931 RL = 1931 TH = 1980 BL3 = A924 WG = A924 YA |
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