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JPL Small-Body Database Browser
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146455 (2001 RD31)
Classification: Main-belt Asteroid          SPK-ID: 2146455
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04517679501890143 4.25e-08  
a 2.636784179239618 2.0899e-08 au
q 2.517662720865027 1.158e-07 au
i 22.21882496826972 8.3365e-06 deg
node 160.8987097025001 1.1993e-05 deg
peri 272.3524921926938 9.7913e-05 deg
M 318.021362810425 9.5621e-05 deg
tp 2458782.862752175976
(2019-Oct-26.36275218)
0.00041549 TDB
period 1563.904766295155
4.28
1.8593e-05
5.09e-08
d
yr
n .230193044844303 2.7367e-09 deg/d
Q 2.755905637614208 2.1843e-08 au
  Orbit Determination Parameters
   # obs. used (total)      415  
   data-arc span      8605 days (23.56 yr)  
   first obs. used      1995-02-23  
   last obs. used      2018-09-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62599  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 11:40:06  

Additional Information
 Earth MOID = 1.60477 au 
 Jupiter MOID = 2.35426 au 
 T_jup = 3.290 
[ 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 15.6   n/a MPO417787  

146455 (2001 RD31)          Discovered 2001-Sep-07 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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