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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 78 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1230441227395966 | 3.6694e-08 | |
| a | 3.011633198906962 | 1.2725e-08 | au |
| q | 2.64106943393401 | 1.1117e-07 | au |
| i | 13.01268088535614 | 4.3518e-06 | deg |
| node | 87.98146200462573 | 1.8348e-05 | deg |
| peri | 304.3107008134384 | 2.5941e-05 | deg |
| M | 93.60492968682598 | 1.7938e-05 | deg |
| tp | 2458504.138873613560
(2019-Jan-20.63887361) | 9.5437e-05 | TDB |
| period | 1908.980713910705
5.23 | 1.2099e-05
3.313e-08 | d
yr |
| n | .1885823137848837 | 1.1952e-09 | deg/d |
| Q | 3.382196963879914 | 1.4291e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
9.3 |
|
n/a |
MPO384751 |
|
| diameter |
diameter |
79.451 |
km |
0.564 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
12.891 |
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:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2009) 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. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] |
| geometric albedo |
albedo |
0.053 |
|
0.007 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| B-V |
BV |
0.743 |
|
0.037 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=1; phase=17.72 deg. |
| U-B |
UB |
0.340 |
|
0.068 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=1; phase=17.72 deg. |
| Tholen spectral type |
spec_T |
CD: |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 2 color indices |
|
| 691 Lehigh (A909 XB) Discovered 1909-Dec-11 by Metcalf, J. H. at Taunton |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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