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117190 (2004 RQ138)
Classification: Main-belt Asteroid          SPK-ID: 2117190
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07913958200721871 5.8877e-08  
a 2.699621565260297 2.3068e-08 au
q 2.485974643007924 1.5342e-07 au
i 13.9136724807237 6.1498e-06 deg
node 208.9587398878082 1.966e-05 deg
peri 157.3184076823435 3.664e-05 deg
M 176.5177638986127 3.3251e-05 deg
tp 2458206.101022595081
(2018-Mar-28.60102260)
0.00014481 TDB
period 1620.140803675897
4.44
2.0766e-05
5.685e-08
d
yr
n .222202909267642 2.8481e-09 deg/d
Q 2.913268487512671 2.4894e-08 au
  Orbit Determination Parameters
   # obs. used (total)      429  
   data-arc span      7155 days (19.59 yr)  
   first obs. used      2000-09-24  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62304  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:09:35  

Additional Information
 Earth MOID = 1.49159 au 
 Jupiter MOID = 2.4623 au 
 T_jup = 3.321 
[ 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 MPO432677  

117190 (2004 RQ138)          Discovered 2004-Sep-08 by NEAT at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2004 RQ138 = 2000 UJ85 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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