[ 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 29 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .06223912409985013 | 4.0716e-08 | |
| a | 2.346270695167844 | 8.7661e-09 | au |
| q | 2.200240862199451 | 9.3984e-08 | au |
| i | 7.193342568841222 | 4.6765e-06 | deg |
| node | 5.065490212150311 | 2.5338e-05 | deg |
| peri | 219.2883998038308 | 3.93e-05 | deg |
| M | 175.5490309561341 | 3.1174e-05 | deg |
| tp | 2458560.379792933197
(2019-Mar-17.87979293) | 0.00011307 | TDB |
| period | 1312.7003509443
3.59 | 7.3568e-06
2.014e-08 | d
yr |
| n | .2742438514174477 | 1.5369e-09 | deg/d |
| Q | 2.492300528136237 | 9.3117e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
14.51 |
|
n/a |
E2021B10 |
|
| rotation period |
rot_per |
3.52405 |
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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] |
|
| 26237 (1998 QQ31) Discovered 1998-Aug-17 by LINEAR at Socorro |
| Reference: 20010705/Numbers.arc | Last Updated: 2004-04-19 |
|
Alternate Designations
| 1998 QQ31 = 1972 HH1 = 1999 XX194 |
|
|
