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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1338344951154837 | 3.0885e-08 | |
| a | 2.75806834167555 | 1.1199e-08 | au |
| q | 2.388943657673403 | 8.3892e-08 | au |
| i | 8.816397479770284 | 5.0362e-06 | deg |
| node | 196.7774079148084 | 2.2314e-05 | deg |
| peri | 245.3941332593476 | 3.0164e-05 | deg |
| M | 80.4661668799581 | 1.9041e-05 | deg |
| tp | 2458626.547212726476
(2019-May-23.04721273) | 8.8545e-05 | TDB |
| period | 1673.038602911249
4.58 | 1.019e-05
2.79e-08 | d
yr |
| n | .2151773422164708 | 1.3105e-09 | deg/d |
| Q | 3.127193025677697 | 1.2697e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
13.3 |
|
n/a |
MPO384914 |
|
| diameter |
diameter |
6.048 |
km |
0.200 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
| geometric albedo |
albedo |
0.278 |
|
0.036 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M) |
|
|
| 18725 Atacama | Discovered 1998 May 2 by the OCA-DLR Asteroid Survey at Caussols. |
| The Atacama desert, which covers regions II, III and IV of Chile, is one of the driest deserts on Earth. It contains many mineral resources, but also a number of very high-quality astronomical sites on which many modern instruments have been installed. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20030614/MPCPages.arc | Last Updated: 2005-04-26 |
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