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393908 (2005 UH3)
Classification: Apollo [NEO]          SPK-ID: 2393908
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5461799670721975 6.4264e-08  
a 1.726502002443725 7.1782e-09 au
q .783521195598928 1.1116e-07 au
i 44.77227170190878 1.6324e-05 deg
node 53.32846427842181 4.3846e-06 deg
peri 309.1544818828455 8.2393e-06 deg
M 342.6319239970621 7.7808e-06 deg
tp 2459436.475901525691
(2021-Aug-09.97590153)
1.8132e-05 TDB
period 828.6078749778893
2.27
5.1676e-06
1.415e-08
d
yr
n .4344636478498424 2.7095e-09 deg/d
Q 2.669482809288521 1.1099e-08 au
  Orbit Determination Parameters
   # obs. used (total)      130  
   # delay obs. used      3  
   # Doppler obs. used      2  
   data-arc span      5700 days (15.61 yr)  
   first obs. used      2005-10-25  
   last obs. used      2021-06-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50948  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jun-05 05:49:50  

Additional Information
 Earth MOID = .0803035 au 
 Jupiter MOID = 3.21958 au 
 T_jup = 3.699 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.52   n/a E2021B25  

393908 (2005 UH3)          Discovered 2005-Oct-25 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-05-15

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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