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117202 (2004 RY187)
Classification: Main-belt Asteroid          SPK-ID: 2117202
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1427083275566765 3.7873e-08  
a 2.325097405145054 1.0182e-08 au
q 1.993286643050435 8.873e-08 au
i 5.835937729369975 3.7672e-06 deg
node 266.3936482477165 3.8657e-05 deg
peri 67.50032380854356 4.0297e-05 deg
M 175.0730556340696 1.2126e-05 deg
tp 2458370.737255490197
(2018-Sep-09.23725549)
4.2562e-05 TDB
period 1294.971331838741
3.55
8.5066e-06
2.329e-08
d
yr
n .2779984322037715 1.8261e-09 deg/d
Q 2.656908167239673 1.1635e-08 au
  Orbit Determination Parameters
   # obs. used (total)      895  
   data-arc span      8209 days (22.48 yr)  
   first obs. used      1997-10-29  
   last obs. used      2020-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53091  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:10:00  

Additional Information
 Earth MOID = .991569 au 
 Jupiter MOID = 2.68718 au 
 T_jup = 3.554 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO453642  

117202 (2004 RY187)          Discovered 2004-Sep-10 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 2004 RY187 = 2002 AL140 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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