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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04531735518949256 4.144e-08  
a 2.637116268493541 1.8364e-08 au
q 2.51760913387823 1.1171e-07 au
i 22.21937414966654 6.6976e-06 deg
node 160.8871626390628 1.1572e-05 deg
peri 272.1148127356012 8.5189e-05 deg
M 50.31556264354988 8.11e-05 deg
tp 2458781.878848991626
(2019-Oct-25.37884899)
0.00035282 TDB
period 1564.200224105091
4.28
1.6339e-05
4.473e-08
d
yr
n .2301495642643594 2.4041e-09 deg/d
Q 2.756623403108851 1.9197e-08 au
  Orbit Determination Parameters
   # obs. used (total)      473  
   data-arc span      9109 days (24.94 yr)  
   first obs. used      1995-02-23  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61142  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 08:37:31  

Additional Information
 Earth MOID = 1.6053 au 
 Jupiter MOID = 2.35293 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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