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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 | .209103048219516 | 3.4062e-08 | |
a | 3.126154085632194 | 1.0161e-08 | au |
q | 2.472465737122609 | 1.071e-07 | au |
i | 22.78099939885335 | 3.19e-06 | deg |
node | 145.0100386216922 | 1.0662e-05 | deg |
peri | 237.558755809993 | 1.3872e-05 | deg |
M | 52.85336512348119 | 1.1194e-05 | deg |
tp | 2458904.095945463104 (2020-Feb-24.59594546) | 6.1972e-05 | TDB |
period | 2018.89623080738 5.53 | 9.8431e-06 2.695e-08 | d yr |
n | .1783152568748082 | 8.6937e-10 | deg/d |
Q | 3.77984243414178 | 1.2286e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
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Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
7.21 |
|
n/a |
E2020-QM5 |
IRAS observations used: 20 |
diameter |
diameter |
180.652 |
km |
2.698 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
rotation period |
rot_per |
5.225 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List: [Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R.; Greenberg, R.; et al. (1987) Icarus 70, 191-245.] [Drummond, J.D.; Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R. (1988) Icarus 76, 19-77.] [Harris, A.W.; Young, J.W. (1989) Icarus 81, 314-364.] [Debehogne, H.; Lagerkvist, C.-I.; Hahn, G. (1990) in Asteroids, Comets, Meteors III. C.-I. Lagerkvist, H. Rickman, B.A. Lindblad, M. Lindgren, eds. Uppsala, p. 45-48.] [Magnusson, P. (1990) Icarus 85, 229-240.] [Drummond, J.D.; Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R. (1991) Icarus 89, 44-64.] [Michalowski, T. (1993) Icarus 106, 563-572.] [Danforth, C.W.; Ratcliff, S.J. (1994) Minor Planet Bull. 21, 1-3.] [De Angelis, G. (1995) Planet. Space Sci. 43, 649-682.] [Shevchenko, V.G.; Chiorny, V.G.; Kalashnikov, A.V.; Krugly, Yu.N.; et al. (1996) Astron. Astrophys. Suppl. Ser. 115, 475-479.] [Harris, A.W.; Young, J.W.; Bowell, E.; Tholen, D.J. (1999) Icarus 142, 173-201.] [Behrend, R. (2001) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Foerster, I.; Potthoff, H. (2001) Minor Planet Bull. 28, 25-26.] [Durech, J.; Kaasalainen, M.; Marciniak, A.; et al. (2007) Astron. Astrophys. 465, 331-337.] [Torppa, J.; Hentunen, V.-P.; Paakkonen, P.; Kehusmaa, P.; Muinonen, K. (2008) Icarus 198, 91-107.] [Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Durech, J.; Kaasalainen, M.; Herald, D.; Dunham, D.; et al. (2011) Icarus 214, 652-670.] [Ferrero, A. (2013) Minor Planet Bull. 40, 31-32.] [Garceran, A.C. (2013) Posting on CALL web site. http://www.MinorPlanet.info/call.html] [Hanus, J.; Marchis, F.; Durech, J. (2013) Icarus 226, 1045-1057.] [Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.] [Hanus, J.; Marchis, M.; Viikinkoski, M.; Yang, B.; Kaasalainen, M. (2017) Astron. Astrophys. 599, A36.] |
geometric albedo |
albedo |
0.086 |
|
0.015 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
B-V |
BV |
0.753 |
|
0.029 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=16; phase (min.=6.41, mean=16.24, max.=22.14) deg. |
U-B |
UB |
0.483 |
|
0.031 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=8; phase (min.=8.28, mean=16.87, max.=22.14) deg. |
Tholen spectral type |
spec_T |
G |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices; used ground-based radiometric albedo |
SMASSII spectral type |
spec_B |
Ch |
|
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) |
|
130 Elektra (A873 DA) Discovered 1873-Feb-17 by Peters, C. H. F. at Clinton |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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