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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 36 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1337788223632324 | 2.9495e-08 | |
| a | 2.6357266148001 | 1.0566e-08 | au |
| q | 2.283122212200714 | 7.703e-08 | au |
| i | 11.85166029559657 | 6.1574e-07 | deg |
| node | 85.18049252946383 | 3.99e-06 | deg |
| peri | 316.7703159008724 | 6.9268e-06 | deg |
| M | 191.3222402089 | 7.8048e-06 | deg |
| tp | 2459932.825730673619
(2022-Dec-19.32573067) | 3.6873e-05 | TDB |
| period | 1562.96398155279
4.28 | 9.3984e-06
2.573e-08 | d
yr |
| n | .2303316034463849 | 1.385e-09 | deg/d |
| Q | 2.988331017399486 | 1.198e-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 |
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