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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.
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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1328046904045277 | 5.3619e-08 | |
| a | 2.346537337397201 | 9.4913e-09 | au |
| q | 2.034906172781501 | 1.2641e-07 | au |
| i | 6.519323482399614 | 5.6386e-06 | deg |
| node | 340.7597722426755 | 3.5137e-05 | deg |
| peri | 3.701515848621926 | 3.8306e-05 | deg |
| M | 166.0674276301761 | 1.556e-05 | deg |
| tp | 2458394.850186133071
(2018-Oct-03.35018613) | 5.6168e-05 | TDB |
| period | 1312.924130297514
3.59 | 7.9658e-06
2.181e-08 | d
yr |
| n | .2741971083419897 | 1.6636e-09 | deg/d |
| Q | 2.658168502012901 | 1.0752e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
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Orbital Elements at Epoch 2457277.5 (2015-Sep-12.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1334522769959595 | 5.3921e-08 | |
| q | 2.03304414650346 | 1.2725e-07 | au |
| tp | 2457080.015547478232
(2015-Feb-26.51554748) | 5.4992e-05 | TDB |
| node | 340.8273294201028 | 3.5086e-05 | deg |
| peri | 3.195617473487286 | 3.8198e-05 | deg |
| i | 6.526043684121396 | 5.6427e-06 | deg |
|
| | Orbit Determination Parameters
Additional Information
|
Orbit Covariance (6×6)
|
| |
e |
q |
tp |
node |
peri |
i |
| e |
2.907459605619701E-15 |
-6.847454252946019E-15 |
-6.302527776377823E-13 |
1.114979356450301E-16 |
-2.540939037588739E-13 |
1.334429178987664E-15 |
| q |
-6.847454252946019E-15 |
1.619364403639411E-14 |
1.478397450623048E-12 |
-6.51727140915889E-16 |
5.994599289005122E-13 |
-2.898463239840245E-15 |
| tp |
-6.302527776377823E-13 |
1.478397450623048E-12 |
3.024163713460107E-9 |
-3.873454437497932E-12 |
8.38601827330678E-10 |
-4.079388964858337E-12 |
| node |
1.114979356450301E-16 |
-6.51727140915889E-16 |
-3.873454437497932E-12 |
1.231007305744298E-9 |
-1.223426302905535E-9 |
-5.25784940469421E-11 |
| peri |
-2.540939037588739E-13 |
5.994599289005122E-13 |
8.38601827330678E-10 |
-1.223426302905535E-9 |
1.459052345175791E-9 |
5.108273728675794E-11 |
| i |
1.334429178987664E-15 |
-2.898463239840245E-15 |
-4.079388964858337E-12 |
-5.25784940469421E-11 |
5.108273728675794E-11 |
3.18396094727989E-11 |
|
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
15.3 |
|
n/a |
MPO400787 |
|
|
| 85144 (1981 EU30) Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring |
| Reference: 20040830/Numbers.arc | Last Updated: 2004-09-06 |
|
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