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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 76 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1625282337246511 | 3.5235e-08 | |
a | 2.448485015302823 | 6.7057e-09 | au |
q | 2.05053707046438 | 8.7262e-08 | au |
i | 3.202498687164882 | 3.7697e-06 | deg |
node | 54.73421776958721 | 7.0012e-05 | deg |
peri | 260.4785348478338 | 7.1002e-05 | deg |
M | 40.15636247181795 | 1.2845e-05 | deg |
tp | 2459044.402313113736 (2020-Jul-13.90231311) | 4.9797e-05 | TDB |
period | 1399.408806474771 3.83 | 5.7488e-06 1.574e-08 | d yr |
n | .2572514895821403 | 1.0568e-09 | deg/d |
Q | 2.846432960141267 | 7.7955e-09 | au |
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| | Orbit Determination Parameters
Additional Information
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[ show covariance matrix ]
Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
8.81 |
|
n/a |
E2020-QM5 |
IRAS observations used: 6 |
diameter |
diameter |
52.905 |
km |
1.048 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
rotation period |
rot_per |
10.101 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List: [Harris, A.W. (1996) I.A.P.P.P. Comm. 65, 54-55.] [Lopez-Gonzalez, M.J.; Rodriguez, E. (2005) Planet. Space Sci. 53, 1147-1165.] [Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Mendez, O.; Scheck, J.; Sosa, N. (2011) http://www.fisica.edu.uy/oalm/aster/aster.html] [Behrend, R. (2015) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.] |
geometric albedo |
albedo |
0.273 |
|
0.047 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
B-V |
BV |
0.877 |
|
0.042 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=3; phase (min.=5.42, mean=7.21, max.=9.52) deg. |
U-B |
UB |
0.490 |
|
0.040 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=3; phase (min.=5.42, mean=7.21, max.=9.52) deg. |
Tholen spectral type |
spec_T |
S |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 2 color indices |
|
138 Tolosa (A874 KA) Discovered 1874-May-19 by Perrotin, J. at Toulouse |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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