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146480 (2001 RB121)
Classification: Main-belt Asteroid          SPK-ID: 2146480
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1780492082396203 3.7855e-08  
a 2.713047186735814 1.6242e-08 au
q 2.229991283220773 1.0547e-07 au
i 5.918352392426733 5.1142e-06 deg
node 143.1493546892829 3.7832e-05 deg
peri 261.9436959769453 4.0794e-05 deg
M 29.63549761423614 1.3282e-05 deg
tp 2458866.132520385936
(2020-Jan-17.63252039)
6.0369e-05 TDB
period 1632.24162086707
4.47
1.4658e-05
4.013e-08
d
yr
n .2205555815987359 1.9806e-09 deg/d
Q 3.196103090250856 1.9134e-08 au
  Orbit Determination Parameters
   # obs. used (total)      411  
   data-arc span      6709 days (18.37 yr)  
   first obs. used      2001-08-25  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54687  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 19:24:37  

Additional Information
 Earth MOID = 1.24842 au 
 Jupiter MOID = 2.22792 au 
 T_jup = 3.331 
[ 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 16.0   n/a MPO502886  

146480 (2001 RB121)          Discovered 2001-Sep-12 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

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