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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 46 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1647772306921218 | 1.2764e-08 | |
a | 2.98317356311682 | 7.6861e-09 | au |
q | 2.491614484712481 | 3.7189e-08 | au |
i | 18.21140976705925 | 5.0341e-07 | deg |
node | 333.5728614640626 | 1.7361e-06 | deg |
peri | 12.50245642925221 | 9.3127e-06 | deg |
M | 26.84748370230781 | 6.5401e-06 | deg |
tp | 2459060.148423247483 (2020-Jul-29.64842325) | 3.4157e-05 | TDB |
period | 1881.985224058924 5.15 | 7.2734e-06 1.991e-08 | d yr |
n | .191287367933516 | 7.3927e-10 | deg/d |
Q | 3.474732641521159 | 8.9526e-09 | 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 |
7.67 |
|
n/a |
E2021B10 |
IRAS observations used: 18 |
diameter |
diameter |
85.937 |
km |
2.151 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
rotation period |
rot_per |
11.45 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List: [Wood, H.J.; Kuiper, G.P. (1963) Astrophys. J. 137, 1279-1285.] [Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] |
geometric albedo |
albedo |
0.203 |
|
0.014 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
B-V |
BV |
0.852 |
|
0.014 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=7; phase (min.=2.87, mean=6.84, max.=15.66) deg. |
U-B |
UB |
0.402 |
|
0.031 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=7; phase (min.=2.87, mean=6.84, max.=15.66) 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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61 Danae (A860 RC) Discovered 1860-Sep-09 by Goldschmidt, H. at Paris |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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Alternate Designations
A860 RC = 1953 RL1 = A917 SM |
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