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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 13 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1338473193115257 | 6.6694e-08 | |
| a | 2.610501017583988 | 1.8161e-08 | au |
| q | 2.261092454320361 | 1.7769e-07 | au |
| i | 11.55884366819047 | 8.6721e-06 | deg |
| node | 187.4427208988967 | 2.2244e-05 | deg |
| peri | 52.67961866496 | 3.5078e-05 | deg |
| M | 56.28893441642704 | 2.5327e-05 | deg |
| tp | 2458759.617775227765
(2019-Oct-03.11777523) | 0.00010777 | TDB |
| period | 1540.579899354024
4.22 | 1.6076e-05
4.401e-08 | d
yr |
| n | .2336782403502412 | 2.4385e-09 | deg/d |
| Q | 2.959909580847615 | 2.0592e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
15.9 |
|
n/a |
MPO432399 |
|
| diameter |
diameter |
4.012 |
km |
0.177 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| geometric albedo |
albedo |
0.063 |
|
0.013 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 85612 (1998 HL23) Discovered 1998-Apr-20 by LINEAR at Socorro |
| Reference: 20040830/Numbers.arc | Last Updated: 2004-09-06 |
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