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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .08123216621305256 | 4.4609e-08 | |
| a | 3.129649636112429 | 1.834e-08 | au |
| q | 2.875421416683125 | 1.3974e-07 | au |
| i | 1.469212506713635 | 4.7789e-06 | deg |
| node | 48.79806392188981 | 0.0001583 | deg |
| peri | 172.4818988866108 | 0.00016067 | deg |
| M | 79.97895252882086 | 2.5613e-05 | deg |
| tp | 2458947.221930877473
(2020-Apr-07.72193088) | 0.00014539 | TDB |
| period | 2022.283360435681
5.54 | 1.7776e-05
4.867e-08 | d
yr |
| n | .1780165960137463 | 1.5647e-09 | deg/d |
| Q | 3.383877855541733 | 1.9829e-08 | 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 |
14.35 |
|
n/a |
MPCxxxxx |
|
| diameter |
diameter |
7.645 |
km |
0.320 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| geometric albedo |
albedo |
0.044 |
|
0.006 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 20818 Karmadiraju | Discovered 2000 Oct. 1 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. |
| Kartik Madiraju (b. 1989) was awarded second place in the 2004 Intel International Science and Engineering Fair for his environmental science project. He attends the Centennial Regional High School, Greenfield Park, Quebec, Canada. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20041226/MPCPages.arc | Last Updated: 2004-12-25 |
|
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