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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 24 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .03524898223614894 | 5.3771e-08 | |
| a | 2.714989168670365 | 2.1998e-08 | au |
| q | 2.619288563692566 | 1.4885e-07 | au |
| i | 6.698993123504035 | 5.0203e-06 | deg |
| node | 42.40837890495302 | 4.9162e-05 | deg |
| peri | 343.8854673082433 | 9.2455e-05 | deg |
| M | 163.1917579518832 | 8.1103e-05 | deg |
| tp | 2458259.793255905422
(2018-May-21.29325591) | 0.00036489 | TDB |
| period | 1633.994456709453
4.47 | 1.9859e-05
5.437e-08 | d
yr |
| n | .2203189848789144 | 2.6777e-09 | deg/d |
| Q | 2.810689773648164 | 2.2774e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ hide covariance matrix ]
Orbital Elements at Epoch 2457339.5 (2015-Nov-13.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .03409202490656424 | 5.3393e-08 | |
| q | 2.623931115280673 | 1.4743e-07 | au |
| tp | 2456630.501998758231
(2013-Dec-04.00199876) | 0.00037332 | TDB |
| node | 42.42791872532885 | 4.9171e-05 | deg |
| peri | 345.1713999772152 | 9.5182e-05 | deg |
| i | 6.697686849152101 | 5.0191e-06 | deg |
|
| | Orbit Determination Parameters
Additional Information
|
Orbit Covariance (6×6)
|
| |
e |
q |
tp |
node |
peri |
i |
| e |
2.850824916456155E-15 |
-7.790618859321314E-15 |
-4.079581002789419E-12 |
1.6655796658123E-14 |
-1.017943512289216E-12 |
1.643619199079393E-15 |
| q |
-7.790618859321314E-15 |
2.173616053809393E-14 |
1.330674962178416E-11 |
-4.463643813975167E-14 |
3.28199149679459E-12 |
-4.749345877299965E-15 |
| tp |
-4.079581002789419E-12 |
1.330674962178416E-11 |
1.393654712142174E-7 |
1.126200222524551E-10 |
3.045444336114225E-8 |
-3.273492498984044E-11 |
| node |
1.6655796658123E-14 |
-4.463643813975167E-14 |
1.126200222524551E-10 |
2.417799466039334E-9 |
-2.376815830005288E-9 |
-8.751085776440509E-11 |
| peri |
-1.017943512289216E-12 |
3.28199149679459E-12 |
3.045444336114225E-8 |
-2.376815830005288E-9 |
9.059621302970591E-9 |
7.971315862649241E-11 |
| i |
1.643619199079393E-15 |
-4.749345877299965E-15 |
-3.273492498984044E-11 |
-8.751085776440509E-11 |
7.971315862649241E-11 |
2.519100387122044E-11 |
|
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
15.6 |
|
n/a |
MPO422404 |
|
|
| 117180 (2004 RH78) Discovered 2004-Sep-08 by LINEAR at Socorro |
| Reference: 20051019/Numbers.arc | Last Updated: 2005-10-26 |
|
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