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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 23 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .09159876504200638 | 3.8226e-08 | |
| a | 3.014501025758278 | 1.6911e-08 | au |
| q | 2.738376454580958 | 1.2084e-07 | au |
| i | 10.50464286356544 | 3.9653e-06 | deg |
| node | 145.6274958575048 | 1.7499e-05 | deg |
| peri | 173.5161985552177 | 3.0654e-05 | deg |
| M | 350.6542316671154 | 2.2348e-05 | deg |
| tp | 2459050.128836237748
(2020-Jul-19.62883624) | 0.00011852 | TDB |
| period | 1911.708102449262
5.23 | 1.6086e-05
4.404e-08 | d
yr |
| n | .1883132678774398 | 1.5846e-09 | deg/d |
| Q | 3.290625596935598 | 1.846e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
14.6 |
|
n/a |
MPO436193 |
|
| diameter |
diameter |
4.509 |
km |
0.196 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| geometric albedo |
albedo |
0.166 |
|
0.035 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 58876 (1998 HT121) Discovered 1998-Apr-23 by LINEAR at Socorro |
| Reference: 20030614/Numbers.arc | Last Updated: 2004-04-19 |
|
[ show close-approach data ]
Alternate Designations
| 1998 HT121 = 1992 DJ11 = 2000 WC102 |
|
|
