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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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2351696004466862 5.07e-08  
a 2.370702509145637 1.3191e-08 AU
q 1.813185347291901 1.2354e-07 AU
i 3.407750789496832 6.1215e-06 deg
node 23.82079941856568 9.0792e-05 deg
peri 17.78046498161259 9.1794e-05 deg
M 86.94067280354548 1.3422e-05 deg
tp 2456678.515836483240
(2014-Jan-21.01583648)
4.8605e-05 JED
period 1333.257440139186
3.65
1.1128e-05
3.047e-08
d
yr
n .2700153692466307 2.2537e-09 deg/d
Q 2.928219670999372 1.6293e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      788  
   data-arc span      22727 days (62.22 yr)  
   first obs. used      1951-11-29  
   last obs. used      2014-02-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52127  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 20:20:09  

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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