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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .234836967974786 5.0727e-08  
a 2.370521131267644 1.2894e-08 AU
q 1.813835136280591 1.2336e-07 AU
i 3.407292476331905 6.1201e-06 deg
node 23.84884939420318 9.0813e-05 deg
peri 17.77773735470947 9.1817e-05 deg
M 32.94731551063942 1.3246e-05 deg
tp 2456678.493854307250
(2014-Jan-20.99385431)
4.8656e-05 JED
period 1333.104435631689
3.65
1.0877e-05
2.978e-08
d
yr
n .2700463597433121 2.2034e-09 deg/d
Q 2.927207126254698 1.5923e-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 = .821277 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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