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JPL Small-Body Database Browser
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347383 (2012 RB21)
Classification: Main-belt Asteroid          SPK-ID: 2347383
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1697111675217062 9.0829e-08  
a 2.712857204706066 4.4915e-08 au
q 2.252455041175727 2.5319e-07 au
i 4.897825784449564 1.1087e-05 deg
node 197.539841785481 8.3391e-05 deg
peri 191.5499102621875 8.8582e-05 deg
M 239.2438067669476 3.7269e-05 deg
tp 2459547.951615556981
(2021-Nov-29.45161556)
0.00017971 TDB
period 1632.070176476623
4.47
4.0532e-05
1.11e-07
d
yr
n .2205787503434332 5.478e-09 deg/d
Q 3.173259368236404 5.2538e-08 au
  Orbit Determination Parameters
   # obs. used (total)      121  
   data-arc span      5672 days (15.53 yr)  
   first obs. used      2003-09-23  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52623  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:45:31  

Additional Information
 Earth MOID = 1.25765 au 
 Jupiter MOID = 2.27037 au 
 T_jup = 3.336 
[ 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 16.7   n/a MPO434188  

347383 (2012 RB21)          Discovered 2005-Jan-08 by CINEOS at Campo Imperatore
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

Alternate Designations
 2012 RB21 = 2010 EK143 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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