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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 19 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1196479438264998 | 5.2223e-08 | |
a | 2.98372761151122 | 2.371e-08 | au |
q | 2.626730737855549 | 1.6287e-07 | au |
i | 10.89170996494548 | 5.8788e-06 | deg |
node | 329.9884318524263 | 2.1946e-05 | deg |
peri | 345.5583972323445 | 2.9302e-05 | deg |
M | 253.6543444154725 | 2.2178e-05 | deg |
tp | 2459556.601976824363 (2021-Dec-08.10197682) | 0.00011972 | TDB |
period | 1882.509544526215 5.15 | 2.2439e-05 6.143e-08 | d yr |
n | .1912340901785993 | 2.2795e-09 | deg/d |
Q | 3.340724485166891 | 2.6547e-08 | au |
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| | Orbit Determination Parameters
Additional Information
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[ hide covariance matrix ]
Orbital Elements at Epoch 2457217.5 (2015-Jul-14.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1182815825282988 | 5.2227e-08 | |
q | 2.631520236341768 | 1.6269e-07 | au |
tp | 2457673.102261529237 (2016-Oct-11.60226153) | 0.00010935 | TDB |
node | 330.0132619877253 | 2.195e-05 | deg |
peri | 345.5654900034556 | 2.9449e-05 | deg |
i | 10.88909471477989 | 5.8773e-06 | deg |
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| | Orbit Determination Parameters
Additional Information
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Orbit Covariance (6×6)
|
|
e |
q |
tp |
node |
peri |
i |
e |
2.727683800068044E-15 |
-8.432355000229064E-15 |
1.400409454667248E-13 |
-5.358073598691499E-15 |
7.250511600896234E-14 |
2.065084380256632E-15 |
q |
-8.432355000229064E-15 |
2.646944877596201E-14 |
5.824590856577954E-13 |
1.83935179954164E-14 |
-6.643236923551735E-14 |
-5.192828682955761E-15 |
tp |
1.400409454667248E-13 |
5.824590856577954E-13 |
1.195779412267744E-8 |
-1.517068424929855E-11 |
2.158231941526493E-9 |
-3.629850167499731E-12 |
node |
-5.358073598691499E-15 |
1.83935179954164E-14 |
-1.517068424929855E-11 |
4.817950295464042E-10 |
-4.75353194405338E-10 |
3.792308710929604E-12 |
peri |
7.250511600896234E-14 |
-6.643236923551735E-14 |
2.158231941526493E-9 |
-4.75353194405338E-10 |
8.672336895270829E-10 |
-4.398795828898378E-12 |
i |
2.065084380256632E-15 |
-5.192828682955761E-15 |
-3.629850167499731E-12 |
3.792308710929604E-12 |
-4.398795828898378E-12 |
3.454298646337095E-11 |
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Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
14.93 |
|
n/a |
E2021B55 |
|
diameter |
diameter |
3.828 |
km |
0.954 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
geometric albedo |
albedo |
0.159 |
|
0.084 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
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|
173740 (2001 QX287) Discovered 2001-Aug-17 by LINEAR at Socorro |
Reference: 20080122/Numbers.arc | Last Updated: 2008-01-28 |
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