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308378 (2005 RR31)
Classification: Main-belt Asteroid          SPK-ID: 2308378
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2871650418116451 7.5012e-08  
a 3.161391076750324 3.6339e-08 au
q 2.253550076012355 2.4996e-07 au
i 25.24403272891292 1.4183e-05 deg
node 326.4464726367266 1.8096e-05 deg
peri 79.96968191286375 4.3408e-05 deg
M 202.2569515682736 3.1784e-05 deg
tp 2459900.129090209030
(2022-Nov-16.62909021)
0.00019168 TDB
period 2053.126750719701
5.62
3.54e-05
9.692e-08
d
yr
n .1753423162373224 3.0233e-09 deg/d
Q 4.069232077488293 4.6775e-08 au
  Orbit Determination Parameters
   # obs. used (total)      189  
   data-arc span      6749 days (18.48 yr)  
   first obs. used      1999-09-03  
   last obs. used      2018-02-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53405  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Mar-06 01:50:46  

Additional Information
 Earth MOID = 1.40695 au 
 Jupiter MOID = 2.08376 au 
 T_jup = 2.997 
[ 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 15.7   n/a MPO437366  

308378 (2005 RR31)          Discovered 2005-Sep-13 by LONEOS at Anderson Mesa
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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