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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 33 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1433816576881506 | 3.2076e-08 | |
| a | 2.225499656030751 | 4.9305e-09 | au |
| q | 1.906403826164653 | 7.0331e-08 | au |
| i | 6.712371048781814 | 3.7814e-06 | deg |
| node | 27.79430965020461 | 3.118e-05 | deg |
| peri | 36.94561009963757 | 3.4293e-05 | deg |
| M | 183.6537843572019 | 1.5006e-05 | deg |
| tp | 2459594.523146075730
(2022-Jan-15.02314608) | 5.128e-05 | TDB |
| period | 1212.661875435014
3.32 | 4.0299e-06
1.103e-08 | d
yr |
| n | .2968675830357564 | 9.8654e-10 | deg/d |
| Q | 2.544595485896849 | 5.6374e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
12.4 |
|
n/a |
MPO265964 |
|
| diameter |
diameter |
8.480 |
km |
0.167 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
5.249 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D. (2009) Minor Planet Bull. 36, 109-116.]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.] |
| geometric albedo |
albedo |
0.295 |
|
0.063 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
|
| 1518 Rovaniemi (1938 UA) Discovered 1938-Oct-15 by Vaisala, Y. at Turku |
| Independent discovery Oct. 21 by E. Delporte, Uccle, was announced first. |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
Alternate Designations
| 1938 UA = 1928 TL = 1951 SH |
|
|
