[ hide orbit diagram ]
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 38 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .0747221870993916 | 3.8063e-08 | |
| a | 3.133558898698932 | 1.6699e-08 | au |
| q | 2.899412524383386 | 1.1813e-07 | au |
| i | 4.622023518403537 | 3.962e-06 | deg |
| node | 145.6638268521079 | 5.0958e-05 | deg |
| peri | 49.06415948681937 | 5.7765e-05 | deg |
| M | 65.754231983049 | 2.5846e-05 | deg |
| tp | 2458630.436349292167
(2019-May-26.93634929) | 0.00014605 | TDB |
| period | 2026.073611340543
5.55 | 1.6196e-05
4.434e-08 | d
yr |
| n | .1776835737778586 | 1.4204e-09 | deg/d |
| Q | 3.367705273014476 | 1.7947e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
11.6 |
|
n/a |
MPO309166 |
|
| 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 |
|
[ show close-approach data ]
Alternate Designations
| 1980 CF = 1972 XN2 = 1976 OE |
|
|
