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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 36 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1162009691798267 | 3.2744e-08 | |
| a | 2.745749708220599 | 8.9281e-09 | au |
| q | 2.426690931000139 | 9.0268e-08 | au |
| i | 4.668147003167619 | 4.2668e-06 | deg |
| node | 26.96555445973453 | 4.4936e-05 | deg |
| peri | 43.15861085891756 | 4.8594e-05 | deg |
| M | 325.1722153600626 | 1.8435e-05 | deg |
| tp | 2459161.273029572201
(2020-Nov-07.77302957) | 8.5264e-05 | TDB |
| period | 1661.842441153223
4.55 | 8.1055e-06
2.219e-08 | d
yr |
| n | .2166270346003324 | 1.0566e-09 | deg/d |
| Q | 3.064808485441059 | 9.9656e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
9.90 |
|
n/a |
IRAS-A-FPA-3-RDR-IMPS-V6.0 |
IRAS observations used: 8 |
| diameter |
diameter |
28.025 |
km |
0.456 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
8.0062 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Lagerkvist, C.-I. (1978) Astron. Astrophys. Suppl. Ser. 31, 361-381.]
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Ditteon, R.; Hawkins, S. (2007) Minor Planet Bull. 34, 59-64.]
[Sada, P.V.; Warner, B.D. (2007) Minor Planet Bull. 34, 37-38.]
[Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.] |
| geometric albedo |
albedo |
0.247 |
|
0.018 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| Tholen spectral type |
spec_T |
S |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
based on a medium resolution spectrum published by Chapman and Gaffey (1979) |
|
| 340 Eduarda (A892 SD) Discovered 1892-Sep-25 by Wolf, M. at Heidelberg |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
Alternate Designations
| A892 SD = 1954 FA = 1959 JT |
|
|
