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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 94 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .3051012266712959 | 4.6788e-08 | |
| a | 2.747268313940356 | 7.0742e-09 | au |
| q | 1.909073381361971 | 1.2993e-07 | au |
| i | 18.3690218106343 | 5.9323e-06 | deg |
| node | 358.2052823687437 | 1.2506e-05 | deg |
| peri | 47.81236771863738 | 1.4969e-05 | deg |
| M | 26.32019691461564 | 8.0539e-06 | deg |
| tp | 2458878.899131718019
(2020-Jan-30.39913172) | 3.6929e-05 | TDB |
| period | 1663.221317208471
4.55 | 6.4242e-06
1.759e-08 | d
yr |
| n | .2164474422467236 | 8.3603e-10 | deg/d |
| Q | 3.585463246518742 | 9.2325e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
8.5 |
|
n/a |
MPO492748 |
IRAS observations used: 6 |
| diameter |
diameter |
132.842 |
km |
29.191 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N) |
|
| rotation period |
rot_per |
9.93 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Harris, A.W.; Young, J.W. (1980) Icarus 43, 20-32.]
[Schober, H.J.; Schroll, A. (1982) Astron. Astrophys. 107, 402-405.]
[Di Martino, M.; Zappala, V.; De Sanctis, G.; Cacciatori, S. (1987) Icarus 69, 338-353.]
[Brinsfield, J.W. (2007) Minor Planet Bull. 34, 58-59.]
[Warner, B.D. (2007) Minor Planet Bull. 34, 72-77.]
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D. (2011) http://www.minorplanetobserver.com/PDO/PDOLightcurves.htm]
[Behrend, R. (2012) 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]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.] |
| geometric albedo |
albedo |
0.029 |
|
0.006 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N) |
|
| B-V |
BV |
0.713 |
|
0.019 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=5; phase (min.=7.52, mean=11.27, max.=19.66) deg. |
| U-B |
UB |
0.363 |
|
0.018 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=5; phase (min.=7.52, mean=11.27, max.=19.66) deg. |
| Tholen spectral type |
spec_T |
C |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 2 color indices; used ground-based radiometric albedo |
|
| 36 Atalante (A855 TA) Discovered 1855-Oct-05 by Goldschmidt, H. at Paris |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
Alternate Designations
| A855 TA = A901 SB = A912 HC |
|
|
