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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 92 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .112246333818623 | 1.3982e-08 | |
| a | 2.558587647083568 | 4.7914e-09 | au |
| q | 2.271395563944821 | 3.5573e-08 | au |
| i | 11.8329926018298 | 1.1317e-06 | deg |
| node | 129.3413126072222 | 4.6073e-06 | deg |
| peri | 17.4868765423249 | 9.6485e-06 | deg |
| M | 288.7616028719275 | 1.0788e-05 | deg |
| tp | 2459496.308407557823
(2021-Oct-08.80840756) | 4.5216e-05 | TDB |
| period | 1494.854334374853
4.09 | 4.199e-06
1.15e-08 | d
yr |
| n | .2408261405286367 | 6.7648e-10 | deg/d |
| Q | 2.845779730222316 | 5.3292e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
9.04 |
|
n/a |
E2021B10 |
IRAS observations used: 14 |
| diameter |
diameter |
55.421 |
km |
1.758 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
10.664 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D. (2009) Minor Planet Bull. 36, 109-116.]
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Stephens, R.D. (2014) Minor Planet Bull. 41, 226-230.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Devogele, M.; Tanga, P.; Bendjoya, P.; Rivet, J.P.; et al. (2017) ArXiv:1707.07503.] |
| geometric albedo |
albedo |
0.164 |
|
0.026 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| B-V |
BV |
0.808 |
|
0.042 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=4; phase (min.=8.67, mean=12.30, max.=21.17) deg. |
| U-B |
UB |
0.402 |
|
0.048 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=4; phase (min.=8.67, mean=12.30, max.=21.17) deg. |
| Tholen spectral type |
spec_T |
S |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices |
| SMASSII spectral type |
spec_B |
K |
|
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) |
|
| 402 Chloe (A895 FB) Discovered 1895-Mar-21 by Charlois, A. at Nice |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
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Alternate Designations
| A895 FB = 1949 OC1 = A908 LA |
|
|
