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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 41 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1201918359758083 | 3.9341e-08 | |
| a | 3.047920819894817 | 1.2609e-08 | au |
| q | 2.681585620642768 | 1.1904e-07 | au |
| i | 9.050596721215282 | 4.4424e-06 | deg |
| node | 30.68147319910319 | 2.0257e-05 | deg |
| peri | 9.634968655313303 | 2.481e-05 | deg |
| M | 169.1728222995309 | 1.5456e-05 | deg |
| tp | 2458087.160918052717
(2017-Nov-29.66091805) | 8.1084e-05 | TDB |
| period | 1943.58683050672
5.32 | 1.2061e-05
3.302e-08 | d
yr |
| n | .1852245520238182 | 1.1494e-09 | deg/d |
| Q | 3.414256019146866 | 1.4125e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
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Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
10.8 |
|
n/a |
MPO473775 |
|
| diameter |
diameter |
19.835 |
km |
0.536 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
6.868 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Folberth, J.; Casimir, S.; Dou, Y.; Evans, D; et al. (2012) Minor Planet Bull. 39, 51-55.]
[Alkema, M.S. (2013) Minor Planet Bull. 40, 133-137.]
[Polakis, T. (2018) Minor Planet Bull. 45, 199-203.] |
| geometric albedo |
albedo |
0.236 |
|
0.027 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
|
| 964 Subamara (A921 UL) Discovered 1921-Oct-27 by Palisa, J. at Vienna |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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