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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .2587021934150189 | 3.0249e-08 | |
| a | 2.343448841502622 | 6.7601e-09 | au |
| q | 1.737193486050009 | 7.1011e-08 | au |
| i | 5.410691836935437 | 4.1437e-06 | deg |
| node | 256.4745407175545 | 3.8582e-05 | deg |
| peri | 85.59634623671487 | 3.9613e-05 | deg |
| M | 43.06529808847911 | 9.0497e-06 | deg |
| tp | 2459239.750342905296
(2021-Jan-25.25034291) | 3.2627e-05 | TDB |
| period | 1310.332891186691
3.59 | 5.6699e-06
1.552e-08 | d
yr |
| n | .2747393448041813 | 1.1888e-09 | deg/d |
| Q | 2.949704196955235 | 8.509e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
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[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
15.96 |
|
n/a |
E2021B55 |
|
|
| 129980 Catherinejohnson | Discovered 1999 Oct. 28 by the Catalina Sky Survey. |
| Catherine Johnson (b. 1967) is a planetary geophysicist and a Co-Investigator for the OSIRIS-REx Asteroid Sample Return Mission and for the InSight mission to Mars. She was a Participating Scientist on the MESSENGER mission to Mercury and is a Fellow of the American Geophysical Union. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: MPC batch dated 2016-11-14 | Last Updated: 2016-11-20 |
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