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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 28 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .08956717391706666 | 3.7937e-08 | |
| a | 2.904977401642874 | 1.4114e-08 | au |
| q | 2.644786785484778 | 1.0976e-07 | au |
| i | 3.287435418277542 | 3.1057e-06 | deg |
| node | 92.41996240909917 | 8.3021e-05 | deg |
| peri | 320.319065798997 | 8.6055e-05 | deg |
| M | 155.7429471624864 | 2.2652e-05 | deg |
| tp | 2458218.118716998575
(2018-Apr-09.61871700) | 0.00011297 | TDB |
| period | 1808.475228009268
4.95 | 1.318e-05
3.608e-08 | d
yr |
| n | .1990627211390009 | 1.4507e-09 | deg/d |
| Q | 3.16516801780097 | 1.5378e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
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[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
13.6 |
|
n/a |
MPO337389 |
|
| diameter |
diameter |
5.354 |
km |
0.315 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| rotation period |
rot_per |
7.272 |
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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.] |
| geometric albedo |
albedo |
0.295 |
|
0.059 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 15460 Manca | Discovered 1998 Dec. 25 by A. Boattini and L. Tesi at San Marcello Pistoiese. |
| Francesco Manca (b. 1966), an amateur astronomer at the Sormano Astronomical Observatory, has made several observations of potentially hazardous asteroids, computing for each of them future and past close encounters with our planet. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20001013/MPCPages.arc | Last Updated: 2013-03-29 |
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