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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 47 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .3107329531927075 | 4.2123e-08 | |
| a | 2.619034487792196 | 7.6365e-09 | au |
| q | 1.805214166886977 | 1.1078e-07 | au |
| i | 16.00463887818937 | 4.1878e-06 | deg |
| node | 290.5259853408369 | 1.5098e-05 | deg |
| peri | 54.83377875211916 | 1.5694e-05 | deg |
| M | 221.920671825334 | 6.4576e-06 | deg |
| tp | 2459594.294837360019
(2022-Jan-14.79483736) | 2.9153e-05 | TDB |
| period | 1548.140074806848
4.24 | 6.7711e-06
1.854e-08 | d
yr |
| n | .2325370978106842 | 1.017e-09 | deg/d |
| Q | 3.432854808697414 | 1.0009e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
10.9 |
|
n/a |
MPO384758 |
|
| diameter |
diameter |
17.634 |
km |
0.498 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
25.462 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Garlitz, J. (2013) Posting on CALL web site. http://www.minorplanet.info/call.html]
[Ferrero, A. (2014) Minor Planet Bull. 41, 184-185.]
[Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] |
| geometric albedo |
albedo |
0.195 |
|
0.029 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
|
| 1246 Chaka (1932 OA) Discovered 1932-Jul-23 by Jackson, C. at Johannesburg (UO) |
| Subsequently reported as discovered on July 4. |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
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