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117180 (2004 RH78)
Classification: Main-belt Asteroid          SPK-ID: 2117180
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03524898265333971 5.3772e-08  
a 2.714989167100454 2.2028e-08 au
q 2.619288561045325 1.4887e-07 au
i 6.698993144874263 5.0212e-06 deg
node 42.4083798360863 4.9269e-05 deg
peri 343.8854703872635 9.2559e-05 deg
M 163.1917545065934 8.1142e-05 deg
tp 2458259.793272185615
(2018-May-21.29327219)
0.00036508 TDB
period 1633.994455292196
4.47
1.9886e-05
5.444e-08
d
yr
n .2203189850700098 2.6813e-09 deg/d
Q 2.810689773155583 2.2804e-08 au
  Orbit Determination Parameters
   # obs. used (total)      447  
   data-arc span      8037 days (22.00 yr)  
   first obs. used      1998-04-22  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5547  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:09:34  

Additional Information
 Earth MOID = 1.62433 au 
 Jupiter MOID = 2.33635 au 
 T_jup = 3.350 
[ 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 15.6   n/a MPO422404  

117180 (2004 RH78)          Discovered 2004-Sep-08 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2004 RH78 = 2000 WO79 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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