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115781 (2003 UH217)
Classification: Main-belt Asteroid          SPK-ID: 2115781
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1332756029888182 5.3923e-08  
a 2.641675419006175 1.2692e-08 au
q 2.289604534637388 1.4484e-07 au
i 5.392593117013892 4.5555e-06 deg
node 62.07427653765798 5.4853e-05 deg
peri 330.292731642816 5.7284e-05 deg
M 356.6491303417919 1.4684e-05 deg
tp 2459215.097303700624
(2020-Dec-31.59730370)
6.3946e-05 TDB
period 1568.2583532762
4.29
1.1302e-05
3.094e-08
d
yr
n .2295540140104692 1.6544e-09 deg/d
Q 2.993746303374962 1.4384e-08 au
  Orbit Determination Parameters
   # obs. used (total)      653  
   data-arc span      7700 days (21.08 yr)  
   first obs. used      1999-12-07  
   last obs. used      2021-01-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50832  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:45:08  

Additional Information
 Earth MOID = 1.2966 au 
 Jupiter MOID = 2.43062 au 
 T_jup = 3.376 
[ 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 15.95   n/a E2021B55  

115781 (2003 UH217)          Discovered 2003-Oct-21 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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