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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 220 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .2632605398961712 | 1.4763e-08 | |
a | 2.649153181956252 | 4.2319e-09 | au |
q | 1.95173568500679 | 3.7075e-08 | au |
i | 6.739731876638 | 3.3834e-07 | deg |
node | 179.5323499090781 | 3.0554e-06 | deg |
peri | 157.7429869646082 | 4.1573e-06 | deg |
M | 175.7631152939715 | 2.7577e-06 | deg |
tp | 2458431.574480860261 (2018-Nov-09.07448086) | 1.0743e-05 | TDB |
period | 1574.921942111255 4.31 | 3.7738e-06 1.033e-08 | d yr |
n | .2285827572618638 | 5.4772e-10 | deg/d |
Q | 3.346570678905715 | 5.346e-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 |
10.39 |
|
n/a |
E2021B10 |
|
diameter |
diameter |
52.8 |
km |
n/a |
n/a |
Yeomans E-mail 2001-Apr-04 |
GM |
GM |
0.00689 |
km^3/s^2 |
0.00030 |
Yeomans et al. (1997) Science v.278, pp.2106-2109 |
|
bulk density |
density |
1.3 |
g/cm^3 |
0.2 |
Yeomans et al. (1997) Science v.278, pp.2106-2109 |
based on a nominal volume of 78000 km^3 (with lower/uppper limits of 67000/90000 km^3) |
rotation period |
rot_per |
417.7 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List: [Mottola, S.; Sears, W.D.; Erikson, A.; Harris, A.W.; et al. (1995) Planet. Space Sci. 43, 1609-1613.] [Pravec, P.; et al. (2005) Icarus 173, 108-131.] |
geometric albedo |
albedo |
0.0436 |
|
0.004 |
IRAS-A-FPA-3-RDR-IMPS-V6.0 |
IRAS observations used: 20 |
SMASSII spectral type |
spec_B |
Cb |
|
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) |
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253 Mathilde (A885 VA) Discovered 1885-Nov-12 by Palisa, J. at Vienna |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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[ show close-approach data ]
Alternate Designations
A885 VA = 1949 OL1 = A915 TN |
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