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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .2089358052506588 | 9.577e-09 | |
| a | 2.734257811617119 | 8.0183e-09 | au |
| q | 2.162973453983992 | 2.5995e-08 | au |
| i | 9.80821039062775 | 2.7862e-07 | deg |
| node | 161.9731523032407 | 2.3523e-06 | deg |
| peri | .6123506764154343 | 7.0363e-06 | deg |
| M | 93.10036100408675 | 5.8867e-06 | deg |
| tp | 2458969.422704936638
(2020-Apr-29.92270494) | 2.6626e-05 | TDB |
| period | 1651.420301324732
4.52 | 7.2643e-06
1.989e-08 | d
yr |
| n | .217994171266525 | 9.5892e-10 | deg/d |
| Q | 3.305542169250247 | 9.6937e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
13.45 |
|
n/a |
E2021B10 |
|
| diameter |
diameter |
9.984 |
km |
0.180 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| rotation period |
rot_per |
6.95582 |
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.] |
| geometric albedo |
albedo |
0.112 |
|
0.025 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| SMASSII spectral type |
spec_B |
Ch |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) |
|
| 5553 Chodas | Discovered 1984 Feb. 6 by E. Bowell at the Anderson Mesa Station of the Lowell Observatory. |
| Paul W. Chodas (1952- ) is a member of the Solar System Dynamics Group at the Jet Propulsion Laboratory. His work has contributed to the understanding of cometary nongravitational forces, the use of radar data in asteroidal and cometary orbits, orbital error analyses, earth close approaches and impact probabilities. He developed the system that allowed the use of radar landmark data on the surface of Venus for improved orbital solutions of the Magellan spacecraft. Citation prepared by D. K. Yeomans, a colleague of the honoree. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: MPC22831 | Last Updated: 2005-11-23 |
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