| 164207 (2004 GU9) |
| Classification: Apollo [NEO, PHA] SPK-ID: 2164207 |
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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 76 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .136029369990612 | 2.3134e-07 | |
| a | 1.001312876453123 | 5.8549e-09 | au |
| q | .865104916705717 | 2.2834e-07 | au |
| i | 13.65026887166258 | 1.4472e-05 | deg |
| node | 38.51850205170236 | 1.6027e-05 | deg |
| peri | 279.7902549735331 | 2.6376e-05 | deg |
| M | 126.0406108812387 | 3.6796e-05 | deg |
| tp | 2459072.366960880768
(2020-Aug-10.86696088) | 3.7197e-05 | TDB |
| period | 365.9764401363265
1.00 | 3.2099e-06
8.788e-09 | d
yr |
| n | .9836698773994843 | 8.6275e-09 | deg/d |
| Q | 1.137520836200529 | 6.6513e-09 | au |
|
Additional Model Parameters
| Parameter | Value | Uncertainty (1-sigma) |
| A2 [EST] | -5.026585078425553E-14 | 1.4E-14 |
| ALN [SET] | 1. | n/a |
| NK [SET] | 0. | n/a |
| NM [SET] | 2. | n/a |
| R0 [SET] | 1. | n/a |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
21.26 |
|
n/a |
E2021B69 |
|
| diameter |
diameter |
0.163 |
km |
0.008 |
urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M) |
|
| geometric albedo |
albedo |
0.219 |
|
0.038 |
urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M) |
|
|
| 164207 (2004 GU9) Discovered 2004-Apr-13 by LINEAR at Socorro |
| Reference: 20070926/Numbers.arc | Last Updated: 2007-09-30 |
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