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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 41 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .07568689077872504 | 2.1325e-08 | |
| a | 3.136663629453359 | 1.5383e-08 | au |
| q | 2.899259311921324 | 6.4755e-08 | au |
| i | 4.627750015164246 | 4.0096e-07 | deg |
| node | 145.6103645612404 | 1.7724e-06 | deg |
| peri | 49.81431638527273 | 9.8741e-06 | deg |
| M | 100.4595217257603 | 1.1751e-05 | deg |
| tp | 2458634.275111943005
(2019-May-30.77511194) | 6.4489e-05 | TDB |
| period | 2029.085508260473
5.56 | 1.4927e-05
4.087e-08 | d
yr |
| n | .1774198270769903 | 1.3052e-09 | deg/d |
| Q | 3.374067946985395 | 1.6547e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
11.70 |
|
n/a |
E2021B10 |
|
| diameter |
diameter |
20.854 |
km |
0.281 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| rotation period |
rot_per |
16.9 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Behrend, R. (2019) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] |
| geometric albedo |
albedo |
0.102 |
|
0.007 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 2542 Calpurnia (1980 CF) Discovered 1980-Feb-11 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 |
|
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Alternate Designations
| 1980 CF = 1972 XN2 = 1976 OE |
|
|
