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12301 Eotvos (1991 RR12)
Classification: Main-belt Asteroid          SPK-ID: 2012301
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2351696089839467 4.8262e-08  
a 2.370702507430845 1.2491e-08 AU
q 1.813185325741071 1.1687e-07 AU
i 3.407748629050193 5.9718e-06 deg
node 23.82077052709919 8.6839e-05 deg
peri 17.78049603752658 8.7837e-05 deg
M 86.94067199607004 1.3347e-05 deg
tp 2456678.515839823069
(2014-Jan-21.01583982)
4.8235e-05 JED
period 1333.257438692616
3.65
1.0537e-05
2.885e-08
d
yr
n .2700153695395944 2.134e-09 deg/d
Q 2.92821968912062 1.5428e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      841  
   data-arc span      23101 days (63.25 yr)  
   first obs. used      1951-11-29  
   last obs. used      2015-02-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52959  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:30:22  

Additional Information
 Earth MOID = .821557 AU 
 T_jup = 3.505 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0 mag n/a MPO270246  

12301 Eötvös           Discovered 1991 Sept. 4 by E. W. Elst at the European Southern Observatory.
Loránd Eötvös (1848-1919) was a Hungarian physicist who played a leading part in Hungarian science for almost half a century. He is well known from his torsion-balance experiments, improving the limits on any deviation from the proportionality of inertial and gravitational masses.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040928/MPCPages.arcLast Updated: 2004-09-28

[ show close-approach data ]
Alternate Designations
 1991 RR12 = 1984 UB1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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