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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 88 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .303578298154644 | 1.2311e-08 | |
| a | 2.674581765392031 | 3.5506e-09 | au |
| q | 1.862636784778875 | 3.2639e-08 | au |
| i | 4.991487581112517 | 9.4414e-07 | deg |
| node | 359.3320546070839 | 4.6132e-06 | deg |
| peri | 339.3794336503481 | 5.9921e-06 | deg |
| M | 97.03771711516148 | 2.4002e-06 | deg |
| tp | 2458769.854100790326
(2019-Oct-13.35410079) | 1.0356e-05 | TDB |
| period | 1597.652215287534
4.37 | 3.1814e-06
8.71e-09 | d
yr |
| n | .2253306423984207 | 4.487e-10 | deg/d |
| Q | 3.486526746005187 | 4.6285e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
9.06 |
|
n/a |
E2021B10 |
IRAS observations used: 14 |
| magnitude slope |
G |
0.23 |
|
n/a |
PDS3 (MPC 17257) |
Fit |
| diameter |
diameter |
62.377 |
km |
1.603 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
5.357 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Harris, A.W.; Young, J.W. (1989) Icarus 81, 314-364.]
[Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Shevchenko, V.G.; Bel'skaya, I.N.; Krugly, Yu.N.; Chiorny, V.G.; Gaftonyuk, N.M. (2002) Icarus 155, 365-374.]
[Tungalag, N.; Shevchenko, V.G.; Lupishko, D.F. (2002) Kin. Fiz. Neb. Tel 18, 508-516; Kinematics and Physics of Celestial Bodies 18, ???-???.] |
| geometric albedo |
albedo |
0.117 |
|
0.032 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| B-V |
BV |
0.710 |
|
0.018 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=3; phase (min.=3.92, mean=10.25, max.=14.69) deg. |
| U-B |
UB |
0.266 |
|
0.019 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=3; phase (min.=3.92, mean=10.25, max.=14.69) deg. |
| Tholen spectral type |
spec_T |
M |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices; used ground-based radiometric albedo |
| SMASSII spectral type |
spec_B |
Xk |
|
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) |
|
| 75 Eurydike (A862 SA) Discovered 1862-Sep-22 by Peters, C. H. F. at Clinton |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
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Alternate Designations
| A862 SA = 1947 BC = 1958 SA |
|
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