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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 83 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .156712953235558 | 3.2664e-08 | |
| a | 2.401678293546859 | 5.582e-09 | au |
| q | 2.025304195443395 | 7.9778e-08 | au |
| i | 10.57275582489211 | 3.617e-06 | deg |
| node | 194.4968447359238 | 1.9246e-05 | deg |
| peri | 191.8780214718787 | 2.2342e-05 | deg |
| M | 284.089202226435 | 1.243e-05 | deg |
| tp | 2459287.163059094061
(2021-Mar-13.66305909) | 4.7331e-05 | TDB |
| period | 1359.47328049027
3.72 | 4.7396e-06
1.298e-08 | d
yr |
| n | .2648084410089858 | 9.2321e-10 | deg/d |
| Q | 2.778052391650323 | 6.4568e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
10.8 |
|
n/a |
MPO473769 |
IRAS observations used: 6 |
| diameter |
diameter |
28.903 |
km |
0.433 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
| rotation period |
rot_per |
5.6497 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Lagerkvist, C.-I.; Bel'skaya, I.; Erikson, A.; Schevchenko, V.; et al. (1998) Astron. Astrophys. Suppl. Ser. 131, 55-62.]
[Warner, B.D. (2007) Minor Planet Bull. 34, 72-77.]
[Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
[Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] |
| geometric albedo |
albedo |
0.089 |
|
0.016 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
| B-V |
BV |
0.691 |
|
0.027 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=2; phase (min.=10.84, mean=11.39, max.=11.93) deg. |
| U-B |
UB |
0.308 |
|
0.036 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=2; phase (min.=10.84, mean=11.39, max.=11.93) deg. |
| Tholen spectral type |
spec_T |
XDC |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 2 color indices |
| SMASSII spectral type |
spec_B |
C |
|
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) |
|
| 572 Rebekka (A905 SF) Discovered 1905-Sep-19 by Gotz, P. at Heidelberg |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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