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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 39 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .173476109054665 | 3.8755e-08 | |
| a | 2.209686722658379 | 6.4927e-09 | au |
| q | 1.826358867781849 | 8.7382e-08 | au |
| i | 7.549686552061663 | 3.8791e-06 | deg |
| node | 48.22271746355297 | 2.7056e-05 | deg |
| peri | 330.4340357458393 | 2.8681e-05 | deg |
| M | 111.2615991704644 | 8.9902e-06 | deg |
| tp | 2458829.702085277260
(2019-Dec-12.20208528) | 2.9894e-05 | TDB |
| period | 1199.760297312194
3.28 | 5.2878e-06
1.448e-08 | d
yr |
| n | .3000599376446303 | 1.3225e-09 | deg/d |
| Q | 2.593014577534909 | 7.619e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
13.9 |
|
n/a |
MPO448973 |
|
|
| 5997 Dirac | Discovered 1983 Oct. 1 by A. Mrkos at Klet. |
| Paul Adrien Maurice Dirac (1902-1984), English theoretical physicist and Nobel laureate, is known for his work in quantum mechanics, for his theory of the spinning electron and his prediction of the existence of the positron. The name was suggested by M. Tichy and Z. Moravec. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20000726/MPCPages.arc | Last Updated: 2013-03-29 |
|
Alternate Designations
| 1983 TH = 1992 KX = 1993 UE3 |
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