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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 27 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1387123286294534 | 3.376e-08 | |
| a | 2.299511107544757 | 7.2201e-09 | au |
| q | 1.98054056710793 | 7.6355e-08 | au |
| i | 5.87407517895956 | 3.9139e-06 | deg |
| node | 353.6977834612626 | 2.9851e-05 | deg |
| peri | 220.5859512881538 | 3.2497e-05 | deg |
| M | 108.2025965969976 | 1.2264e-05 | deg |
| tp | 2458817.686824614448
(2019-Nov-30.18682461) | 4.3223e-05 | TDB |
| period | 1273.654676255917
3.49 | 5.9986e-06
1.642e-08 | d
yr |
| n | .2826511822327458 | 1.3312e-09 | deg/d |
| Q | 2.618481647981583 | 8.2216e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
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Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
15.02 |
|
n/a |
E2021B10 |
|
| diameter |
diameter |
2.425 |
km |
0.608 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| geometric albedo |
albedo |
0.300 |
|
0.187 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 18458 Caesar | Discovered 1995 Mar. 5 by F. Börngen at Tautenburg. |
| Emperor Gaius Julius Caesar (100-44 B.C.) promulgated in 46 B.C. on the advice of the Alexandrine astronomer Sosigenes what is now called the Julian calendar. In 44 B.C., after the assassination of Julius, the fifth month "Quintilis" was renamed Julius (July). |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20020526/MPCPages.arc | Last Updated: 2003-10-02 |
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