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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1686385386258639 | 3.5598e-08 | |
| a | 2.233169291109952 | 5.6192e-09 | au |
| q | 1.856570885353013 | 7.8288e-08 | au |
| i | 5.705612927338182 | 3.4001e-06 | deg |
| node | 119.8115472999468 | 3.55e-05 | deg |
| peri | 237.7902808068494 | 3.7109e-05 | deg |
| M | 162.6051421421182 | 1.1453e-05 | deg |
| tp | 2458649.929836800289
(2019-Jun-15.42983680) | 3.8261e-05 | TDB |
| period | 1218.935982840341
3.34 | 4.6007e-06
1.26e-08 | d
yr |
| n | .2953395461844806 | 1.1147e-09 | deg/d |
| Q | 2.609767696866891 | 6.5668e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
12.77 |
|
n/a |
E2021B10 |
|
| diameter |
diameter |
6.641 |
km |
0.105 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
2.73325 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2009) http://www.asu.cas.cz/~ppravec/neo.htm]
[Pollock, J.; Pravec, P.; Kusnirak, P.; Hornoch, K.; et al. (2011) CBET 2705.] |
| geometric albedo |
albedo |
0.365 |
|
0.083 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
|
| 2815 Soma (1982 RL) Discovered 1982-Sep-15 by Bowell, E. at Flagstaff (AM) |
| Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory. |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
Alternate Designations
| 1982 RL = 1955 MH = 1970 AC = 1974 DL = 1979 XB1 |
|
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