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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 27 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .09413350909863769 | 4.2345e-08 | |
| a | 2.463867648764358 | 7.8324e-09 | au |
| q | 2.231935141031559 | 1.0264e-07 | au |
| i | 5.94925435668335 | 5.0171e-06 | deg |
| node | 210.6539702164031 | 2.791e-05 | deg |
| peri | 217.1311086209689 | 4.031e-05 | deg |
| M | 129.9258172662421 | 2.6826e-05 | deg |
| tp | 2458490.679321993099
(2019-Jan-07.17932199) | 0.00010548 | TDB |
| period | 1412.617199139
3.87 | 6.7358e-06
1.844e-08 | d
yr |
| n | .254846111331097 | 1.2152e-09 | deg/d |
| Q | 2.695800156497157 | 8.5697e-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 |
14.0 |
|
n/a |
MPO324506 |
|
| rotation period |
rot_per |
20.22 |
h |
n/a |
LCDB (Rev. 2019-August); Warner et al., 2009 |
[Result based on fragmentary lightcurve(s), may be completely wrong.] |
|
| 21361 Carsonmark | Discovered 1997 Apr. 28 by Spacewatch at Kitt Peak. |
| Jordan Carson Mark (1913-1997) worked as a physicist and administrator at Los Alamos National Laboratory and as an advisor on the safety of nuclear reactors. Name suggested and citation prepared by Robert Jedicke and Peter Jedicke. |
| 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 2016-08-18 | Last Updated: 2016-11-23 |
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