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186966 (2004 RA144)
Classification: Main-belt Asteroid          SPK-ID: 2186966
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .180006977279842 4.292e-08  
a 3.01868439611355 2.3926e-08 au
q 2.475300142607324 1.2092e-07 au
i 9.00157221016533 4.141e-06 deg
node 161.5414124125367 2.8848e-05 deg
peri 161.6146029527918 3.167e-05 deg
M 71.8793214965477 1.4686e-05 deg
tp 2458818.004385768525
(2019-Nov-30.50438577)
7.5761e-05 TDB
period 1915.68893885489
5.24
2.2775e-05
6.235e-08
d
yr
n .1879219494868469 2.2342e-09 deg/d
Q 3.562068649619775 2.8232e-08 au
  Orbit Determination Parameters
   # obs. used (total)      567  
   data-arc span      6914 days (18.93 yr)  
   first obs. used      2002-03-05  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48375  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:53:27  

Additional Information
 Earth MOID = 1.46332 au 
 Jupiter MOID = 1.81566 au 
 T_jup = 3.204 
[ 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 15.32   n/a MPCxxxxx  

186966 (2004 RA144)          Discovered 2004-Sep-08 by LINEAR at Socorro
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

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