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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 18 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .160933740604999 | 4.6683e-08 | |
a | 2.74899959615996 | 1.8309e-08 | au |
q | 2.306592808228306 | 1.3703e-07 | au |
i | 7.482093684664251 | 4.7963e-06 | deg |
node | 262.3652810010586 | 3.522e-05 | deg |
peri | 75.0869910312823 | 3.821e-05 | deg |
M | 286.2819745137251 | 1.5995e-05 | deg |
tp | 2459341.403636858224 (2021-May-06.90363686) | 7.5389e-05 | TDB |
period | 1664.793765967187 4.56 | 1.6632e-05 4.554e-08 | d yr |
n | .2162430010006991 | 2.1603e-09 | deg/d |
Q | 3.191406384091614 | 2.1255e-08 | au |
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| | Orbit Determination Parameters
Additional Information
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[ hide covariance matrix ]
Orbital Elements at Epoch 2456971.5 (2014-Nov-10.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1598745812072322 | 4.6653e-08 | |
q | 2.309543605775239 | 1.3676e-07 | au |
tp | 2457678.792798258077 (2016-Oct-17.29279826) | 7.0416e-05 | TDB |
node | 262.3807667033392 | 3.5221e-05 | deg |
peri | 75.45438390870493 | 3.8264e-05 | deg |
i | 7.481086122012675 | 4.7959e-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 |
2.17650291866455E-15 |
-6.350043413091975E-15 |
-2.827581686015802E-13 |
5.94509008799844E-15 |
5.492147374213937E-15 |
-1.217424124531193E-15 |
q |
-6.350043413091975E-15 |
1.870221572580545E-14 |
1.011251351970319E-12 |
-2.017946346550599E-14 |
6.129834987683549E-15 |
4.088505312252591E-15 |
tp |
-2.827581686015802E-13 |
1.011251351970319E-12 |
4.958365403243163E-9 |
-7.73808588544649E-12 |
1.065582755574612E-9 |
9.155170168067427E-13 |
node |
5.94509008799844E-15 |
-2.017946346550599E-14 |
-7.73808588544649E-12 |
1.24054792247665E-9 |
-1.231271470859766E-9 |
-1.029669208766575E-11 |
peri |
5.492147374213937E-15 |
6.129834987683549E-15 |
1.065582755574612E-9 |
-1.231271470859766E-9 |
1.464132407043856E-9 |
1.034655356942326E-11 |
i |
-1.217424124531193E-15 |
4.088505312252591E-15 |
9.155170168067427E-13 |
-1.029669208766575E-11 |
1.034655356942326E-11 |
2.300084889149209E-11 |
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Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
14.6 |
|
n/a |
MPO468688 |
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rotation period |
rot_per |
85.0117 |
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: [Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] |
|
74140 (1998 QD77) Discovered 1998-Aug-24 by LINEAR at Socorro |
Reference: 20040415/Numbers.arc | Last Updated: 2004-04-19 |
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