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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1777827246819141 3.7893e-08  
a 2.712313448439825 1.6499e-08 au
q 2.230110973384794 1.0561e-07 au
i 5.918419852351456 5.3967e-06 deg
node 143.1541181737759 3.7845e-05 deg
peri 261.9458236925673 4.0888e-05 deg
M 301.3821338255293 1.3816e-05 deg
tp 2458866.165859494539
(2020-Jan-17.66585949)
6.2366e-05 TDB
period 1631.579510816229
4.47
1.4887e-05
4.076e-08
d
yr
n .2206450850929742 2.0132e-09 deg/d
Q 3.194515923494855 1.9432e-08 au
  Orbit Determination Parameters
   # obs. used (total)      396  
   data-arc span      6662 days (18.24 yr)  
   first obs. used      2001-08-25  
   last obs. used      2019-11-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55105  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 11:36:40  

Additional Information
 Earth MOID = 1.24801 au 
 Jupiter MOID = 2.22818 au 
 T_jup = 3.332 
[ 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 16.2   n/a MPO407131  

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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