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312012 (2007 RO15)
Classification: Main-belt Asteroid          SPK-ID: 2312012
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1406941675875474 5.2359e-08  
a 2.575111202788878 2.6483e-08 au
q 2.212808075667128 1.3421e-07 au
i 30.62447181430876 1.1163e-05 deg
node 285.3711675960021 1.1238e-05 deg
peri 88.65860970095636 4.0931e-05 deg
M 84.00652295611484 3.9506e-05 deg
tp 2458648.288997912098
(2019-Jun-13.78899791)
0.00016437 TDB
period 1509.358515146296
4.13
2.3284e-05
6.375e-08
d
yr
n .238511921712057 3.6794e-09 deg/d
Q 2.937414329910627 3.0209e-08 au
  Orbit Determination Parameters
   # obs. used (total)      167  
   data-arc span      6389 days (17.49 yr)  
   first obs. used      2002-08-01  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55301  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 18:43:08  

Additional Information
 Earth MOID = 1.39231 au 
 Jupiter MOID = 2.65505 au 
 T_jup = 3.219 
[ 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 16.1   n/a MPO494654  

312012 (2007 RO15)          Discovered 2007-Sep-12 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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