[ 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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1337788243930877 | 4.8013e-08 | |
| a | 2.635726614637921 | 1.0709e-08 | au |
| q | 2.283122206710087 | 1.256e-07 | au |
| i | 11.85167286035373 | 4.1498e-06 | deg |
| node | 85.18047963118339 | 1.9926e-05 | deg |
| peri | 316.770337992488 | 2.4005e-05 | deg |
| M | 191.3222329657773 | 1.494e-05 | deg |
| tp | 2459932.825762052527
(2022-Dec-19.32576205) | 6.6657e-05 | TDB |
| period | 1562.963981408533
4.28 | 9.5256e-06
2.608e-08 | d
yr |
| n | .2303316034676438 | 1.4038e-09 | deg/d |
| Q | 2.988331022565755 | 1.2142e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
11.83 |
|
n/a |
E2021B10 |
|
| diameter |
diameter |
29.28 |
km |
1.0 |
IRAS-A-FPA-3-RDR-IMPS-V6.0 |
IRAS observations used: 10 |
| rotation period |
rot_per |
20.61 |
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:
[Klinglesmith, D.A. III; DeHart, A.; Hanowell, J.; Hendrickx, S. (2015) Minor Planet Bull. 42, 158-159.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] |
| geometric albedo |
albedo |
0.0622 |
|
0.005 |
IRAS-A-FPA-3-RDR-IMPS-V6.0 |
IRAS observations used: 10 |
|
| 2245 Hekatostos | Discovered 1968 Jan. 24 by L. I. Chernykh at the Crimean Astrophysical Observatory. |
| The Greek ordinal number acknowledges this as the 100th minor planet to be numbered as a result of the joint observational program of the Institute for Theoretical Astronomy in Leningrad and the Crimean Astrophysical Observatory at Nauchnij. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: MPC 5850 | Last Updated: 2006-03-21 |
|
Alternate Designations
| 1968 BC = 1930 FA = 1958 XC = 1966 QV = 1971 XC |
|
|
