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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 28 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .08400030830770809 | 4.4985e-08 | |
| a | 3.19829507044988 | 1.9728e-08 | au |
| q | 2.929637298473067 | 1.4766e-07 | au |
| i | 5.890811266112606 | 4.1702e-06 | deg |
| node | 38.25841243925066 | 4.2756e-05 | deg |
| peri | 132.4837752179385 | 4.9459e-05 | deg |
| M | 353.1839549601656 | 2.3373e-05 | deg |
| tp | 2459040.055435526135
(2020-Jul-09.55543553) | 0.00013564 | TDB |
| period | 2089.181733129281
5.72 | 1.933e-05
5.292e-08 | d
yr |
| n | .1723162682744569 | 1.5943e-09 | deg/d |
| Q | 3.466952842426693 | 2.1385e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
14.0 |
|
n/a |
MPO296380 |
|
|
| 31321 (1998 HD3) Discovered 1998-Apr-21 by Klet at Klet |
| Reference: 20011130/Numbers.arc | Last Updated: 2004-04-19 |
|
[ show close-approach data ]
Alternate Designations
| 1998 HD3 = 1981 JY4 = 2000 SN32 |
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