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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .2588885716333481 | 3.0237e-08 | |
| a | 2.343995329146554 | 6.8326e-09 | au |
| q | 1.737161726468563 | 7.1015e-08 | au |
| i | 5.410679425818101 | 4.1436e-06 | deg |
| node | 256.4802695303032 | 3.858e-05 | deg |
| peri | 85.59625860799832 | 3.961e-05 | deg |
| M | 349.215977985607 | 8.9373e-06 | deg |
| tp | 2459239.765560820790
(2021-Jan-25.26556082) | 3.262e-05 | TDB |
| period | 1310.791268472757
3.59 | 5.7313e-06
1.569e-08 | d
yr |
| n | .2746432698010318 | 1.2008e-09 | deg/d |
| Q | 2.950828931824544 | 8.6014e-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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