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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1383696102191695 | 3.4364e-08 | |
| a | 2.300055400755697 | 7.1812e-09 | au |
| q | 1.981797631470636 | 7.7735e-08 | au |
| i | 5.871789763726802 | 3.9568e-06 | deg |
| node | 353.7207660329685 | 3.0111e-05 | deg |
| peri | 220.6857834487325 | 3.2764e-05 | deg |
| M | 51.59857387690952 | 1.2294e-05 | deg |
| tp | 2458817.883056419873
(2019-Nov-30.38305642) | 4.3447e-05 | TDB |
| period | 1274.106913219657
3.49 | 5.967e-06
1.634e-08 | d
yr |
| n | .2825508568117594 | 1.3233e-09 | deg/d |
| Q | 2.618313170040758 | 8.1748e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
15.0 |
|
n/a |
MPO384912 |
|
| 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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