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JPL Small-Body Database Browser
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390977 (2005 RB31)
Classification: Main-belt Asteroid          SPK-ID: 2390977
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1382713265719245 5.997e-08  
a 2.254299697486308 2.5462e-08 au
q 1.942594687824188 1.4078e-07 au
i 6.593232078282788 1.0917e-05 deg
node 145.7238553121481 4.8032e-05 deg
peri 246.6922831391499 6.4309e-05 deg
M 334.1133452109802 4.5167e-05 deg
tp 2458689.397456945115
(2019-Jul-24.89745694)
0.00015608 TDB
period 1236.277331353604
3.38
2.0945e-05
5.734e-08
d
yr
n .2911967977329447 4.9335e-09 deg/d
Q 2.566004707148428 2.8983e-08 au
  Orbit Determination Parameters
   # obs. used (total)      84  
   data-arc span      4698 days (12.86 yr)  
   first obs. used      2005-08-30  
   last obs. used      2018-07-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5219  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 04:52:45  

Additional Information
 Earth MOID = .958048 au 
 Jupiter MOID = 2.87098 au 
 T_jup = 3.603 
[ 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 17.7   n/a MPO455777  

390977 (2005 RB31)          Discovered 2005-Sep-11 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

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