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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 114 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1901003495094241 | 3.349e-08 | |
a | 2.445056262162432 | 3.5461e-09 | au |
q | 1.980250212155148 | 8.1703e-08 | au |
i | 4.612230839652852 | 3.9775e-06 | deg |
node | 206.5324289449702 | 5.2225e-05 | deg |
peri | 201.5240450789871 | 5.3427e-05 | deg |
M | 23.06395104916572 | 1.2287e-05 | deg |
tp | 2459111.032990875684 (2020-Sep-18.53299088) | 4.7607e-05 | TDB |
period | 1396.470327919765 3.82 | 3.0379e-06 8.317e-09 | d yr |
n | .2577928028991992 | 5.6081e-10 | deg/d |
Q | 2.909862312169717 | 4.2202e-09 | au |
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| | Orbit Determination Parameters
Additional Information
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Orbital Elements at Epoch 2454606.5 (2008-May-20.0) TDB
Reference: JPL 114 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1906100225427395 | 3.3797e-08 | |
q | 1.979613081651395 | 8.2432e-08 | au |
tp | 2454918.979602082430 (2009-Mar-28.47960208) | 4.467e-05 | TDB |
node | 206.6972695535736 | 5.2092e-05 | deg |
peri | 200.745460937451 | 5.3273e-05 | deg |
i | 4.616231970789801 | 3.984e-06 | deg |
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| | Orbit Determination Parameters
Additional Information
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Orbit Covariance (6×6)
|
|
e |
q |
tp |
node |
peri |
i |
e |
1.142260956033216E-15 |
-2.78423768661179E-15 |
1.685715200385757E-14 |
-4.414640577640426E-15 |
-4.414882294185881E-16 |
-2.605696145751001E-16 |
q |
-2.78423768661179E-15 |
6.795044274815149E-15 |
-1.566270898403465E-14 |
1.234397492518716E-14 |
4.597987828881216E-15 |
5.609232389208938E-16 |
tp |
1.685715200385757E-14 |
-1.566270898403465E-14 |
1.995408939416787E-9 |
4.10489454893077E-12 |
5.163690343392056E-10 |
-4.731840617862099E-13 |
node |
-4.414640577640426E-15 |
1.234397492518716E-14 |
4.10489454893077E-12 |
2.713599739564503E-9 |
-2.70329799659965E-9 |
-1.639246294921253E-11 |
peri |
-4.414882294185881E-16 |
4.597987828881216E-15 |
5.163690343392056E-10 |
-2.70329799659965E-9 |
2.83802137824252E-9 |
1.624944151959487E-11 |
i |
-2.605696145751001E-16 |
5.609232389208938E-16 |
-4.731840617862099E-13 |
-1.639246294921253E-11 |
1.624944151959487E-11 |
1.587226407361724E-11 |
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Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
7.99 |
|
n/a |
E2021B10 |
IRAS observations used: 12 |
magnitude slope |
G |
0.25 |
|
n/a |
PDS3 (MPC 17257) |
Fit |
diameter |
diameter |
63.479 |
km |
0.952 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
rotation period |
rot_per |
5.978 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List: [Scaltriti, F.; Zappala, V. (1976) Astron. Astrophys. Suppl. Ser. 23, 167-179.] [Schober, H.J. (1976) Icarus 28, 415-420.] [Michalowski, T.; Velichko, F.P. (1990) Acta Astronomica 40, 321-332.] [De Angelis, G. (1993) Planet. Space Sci. 41, 285-290.] [De Angelis, G.; Mottola, S. (1995) Planet. Space Sci. 43, 1013-1017.] [Michalowski, T. (1996) Icarus 123, 456-462.] [Shevchenko, V.G.; Chiorny, V.G.; Kalashnikov, A.V.; Krugly, Yu.N.; et al. (1996) Astron. Astrophys. Suppl. Ser. 115, 475-479.] [Szabo, Gy.; Sarneczky, K.; Kiss, L.L. (1999) in Proc. IAU Coll. 173, Evolution and Source Regions of Asteroids and Comets, 185-188.] [Torppa, J.; Hentunen, V.-P.; Paakkonen, P.; Kehusmaa, P.; Muinonen, K. (2008) Icarus 198, 91-107.] [Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.] |
geometric albedo |
albedo |
0.287 |
|
0.046 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
B-V |
BV |
0.874 |
|
0.035 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=5; phase (min.=17.34, mean=20.18, max.=23.85) deg. |
U-B |
UB |
0.421 |
|
0.016 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=4; phase (min.=17.34, mean=20.70, max.=23.85) deg. |
Tholen spectral type |
spec_T |
S |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices; used ground-based radiometric albedo |
SMASSII spectral type |
spec_B |
S |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) |
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79 Eurynome (A863 RA) Discovered 1863-Sep-14 by Watson, J. C. at Ann Arbor |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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