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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 17 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1609337366102976 | 4.9482e-08 | |
| a | 2.748999594815973 | 1.9199e-08 | au |
| q | 2.306592818082044 | 1.4283e-07 | au |
| i | 7.482094179370428 | 4.829e-06 | deg |
| node | 262.3653022405691 | 4.0629e-05 | deg |
| peri | 75.08697010802852 | 4.3164e-05 | deg |
| M | 286.2819750746258 | 1.6202e-05 | deg |
| tp | 2459341.403634014377
(2021-May-06.90363401) | 7.6506e-05 | TDB |
| period | 1664.79376474631
4.56 | 1.744e-05
4.775e-08 | d
yr |
| n | .216243001159281 | 2.2653e-09 | deg/d |
| Q | 3.191406371549902 | 2.2288e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
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Orbital Elements at Epoch 2456681.5 (2014-Jan-24.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1588442058764531 | 4.94e-08 | |
| q | 2.314442952597379 | 1.425e-07 | au |
| tp | 2456013.082795267305
(2012-Mar-26.58279527) | 6.9586e-05 | TDB |
| node | 262.4145148725835 | 4.0588e-05 | deg |
| peri | 75.46377061081492 | 4.3216e-05 | deg |
| i | 7.48272697727473 | 4.8296e-06 | deg |
|
| | Orbit Determination Parameters
Additional Information
|
Orbit Covariance (6×6)
|
| |
e |
q |
tp |
node |
peri |
i |
| e |
2.440320157494844E-15 |
-6.99850425541093E-15 |
1.539360375284401E-13 |
6.009878273600479E-15 |
8.495137711561658E-16 |
-7.591999984555936E-16 |
| q |
-6.99850425541093E-15 |
2.030520360531409E-14 |
-4.599403801563356E-13 |
-1.813880522875693E-14 |
8.672085958960113E-15 |
2.559579104420301E-15 |
| tp |
1.539360375284401E-13 |
-4.599403801563356E-13 |
4.842277243899182E-9 |
-3.949054297347693E-12 |
1.062611369178251E-9 |
3.013308175232327E-13 |
| node |
6.009878273600479E-15 |
-1.813880522875693E-14 |
-3.949054297347693E-12 |
1.647417740291366E-9 |
-1.634613319875355E-9 |
-5.048546790002661E-14 |
| peri |
8.495137711561658E-16 |
8.672085958960113E-15 |
1.062611369178251E-9 |
-1.634613319875355E-9 |
1.867597720435127E-9 |
1.647898737258211E-13 |
| i |
-7.591999984555936E-16 |
2.559579104420301E-15 |
3.013308175232327E-13 |
-5.048546790002661E-14 |
1.647898737258211E-13 |
2.332459657901227E-11 |
|
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
14.6 |
|
n/a |
MPO468688 |
|
|
| 74140 (1998 QD77) Discovered 1998-Aug-24 by LINEAR at Socorro |
| Reference: 20040415/Numbers.arc | Last Updated: 2004-04-19 |
|
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