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385652 (2005 RU21)
Classification: Main-belt Asteroid          SPK-ID: 2385652
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09432365415260559 4.7843e-08  
a 3.177651761784419 4.3245e-08 au
q 2.877924035988447 1.5812e-07 au
i 12.40851778078144 7.8236e-06 deg
node 169.2543148793389 2.5693e-05 deg
peri 112.5079801924955 4.8891e-05 deg
M 303.786978491472 4.3418e-05 deg
tp 2459523.566783390298
(2021-Nov-05.06678339)
0.00025159 TDB
period 2068.987556608446
5.66
4.2236e-05
1.156e-07
d
yr
n .1739981465089737 3.552e-09 deg/d
Q 3.47737948758039 4.7324e-08 au
  Orbit Determination Parameters
   # obs. used (total)      158  
   data-arc span      6228 days (17.05 yr)  
   first obs. used      2003-03-31  
   last obs. used      2020-04-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61956  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 11:06:08  

Additional Information
 Earth MOID = 1.88909 au 
 Jupiter MOID = 1.78147 au 
 T_jup = 3.157 
[ 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 16.22   n/a E2021B25  

385652 (2005 RU21)          Discovered 2005-Sep-06 by LONEOS at Anderson Mesa
Reference: Last Updated: 2014-02-19

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