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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 42 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1227235807197355 | 3.3076e-08 | |
| a | 2.978324470912742 | 1.0445e-08 | au |
| q | 2.612813827297119 | 9.9962e-08 | au |
| i | 13.44423627245048 | 4.4219e-06 | deg |
| node | 189.4011297625548 | 1.6027e-05 | deg |
| peri | 256.7237259903695 | 2.4103e-05 | deg |
| M | 340.4362850823228 | 1.7876e-05 | deg |
| tp | 2459102.524685921680
(2020-Sep-10.02468592) | 9.3292e-05 | TDB |
| period | 1877.398392194804
5.14 | 9.876e-06
2.704e-08 | d
yr |
| n | .1917547183893857 | 1.0087e-09 | deg/d |
| Q | 3.343835114528366 | 1.1727e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
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Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
9.3 |
|
n/a |
MPO502159 |
IRAS observations used: 9 |
| diameter |
diameter |
57.468 |
km |
0.180 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
6.977 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2003) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pilcher, F. (2012) Minor Planet Bull. 39, 220-222.]
[Klinglesmith III, D.K. (2017) Minor Planet Bull. 44, 345-348.]
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] |
| geometric albedo |
albedo |
0.124 |
|
0.008 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| B-V |
BV |
0.817 |
|
0.021 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=2; phase (min.=2.79, mean=3.38, max.=3.96) deg. |
| U-B |
UB |
0.414 |
|
0.049 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=2; phase (min.=2.79, mean=3.38, max.=3.96) deg. |
| Tholen spectral type |
spec_T |
S |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 2 color indices |
| SMASSII spectral type |
spec_B |
L |
|
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) |
|
| 611 Valeria (A906 SM) Discovered 1906-Sep-24 by Metcalf, J. H. at Taunton |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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