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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 115 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1183215837734439 | 2.4857e-08 | |
a | 2.715080186232266 | 5.9456e-09 | au |
q | 2.393827598525367 | 6.6412e-08 | au |
i | 8.642627013376558 | 2.5644e-06 | deg |
node | 169.9504593662699 | 2.361e-05 | deg |
peri | 210.6162272858053 | 2.8231e-05 | deg |
M | 292.0111304518184 | 1.7349e-05 | deg |
tp | 2459509.108395742437 (2021-Oct-21.60839574) | 7.9256e-05 | TDB |
period | 1634.076624682588 4.47 | 5.3676e-06 1.47e-08 | d yr |
n | .220307906350431 | 7.2366e-10 | deg/d |
Q | 3.036332773939165 | 6.6491e-09 | au |
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| | Orbit Determination Parameters
Additional Information
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Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
8.02 |
|
n/a |
E2021B10 |
IRAS observations used: 14 |
diameter |
diameter |
165.119 |
km |
4.506 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
rotation period |
rot_per |
13.671 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List: [Debehogne, H.; Surdej, A.; Surdej, J. (1978) Astron. Astrophys. Suppl. Ser. 33, 1-5.] [Shevchenko, V.G.; Chiorny, V.G.; Kalashnikov, A.V.; Krugly, Yu.N.; et al. (1996) Astron. Astrophys. Suppl. Ser. 115, 475-479.] [Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [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] [Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Pilcher, F. (2018) Minor Planet Bull. 45, 181-182.] [Pilcher, F. (2019) Minor Planet Bull. 46, 445-448.] [Pilcher, F. (2020) Minor Planet Bull. 47, 344-346.] |
geometric albedo |
albedo |
0.044 |
|
0.007 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
B-V |
BV |
0.662 |
|
0.027 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=3; phase (min.=17.13, mean=20.02, max.=21.48) deg. |
U-B |
UB |
0.285 |
|
0.037 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=3; phase (min.=17.13, mean=20.02, max.=21.48) deg. |
Tholen spectral type |
spec_T |
CP |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices; used ground-based radiometric albedo |
SMASSII spectral type |
spec_B |
B |
|
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) |
|
59 Elpis (A860 RA) Discovered 1860-Sep-12 by Chacornac, J. at Paris |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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