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

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2341270508103485 4.0257e-08  
a 2.371838492588693 8.8039e-09 au
q 1.81652694132044 9.5355e-08 au
i 3.404293880697336 4.9167e-06 deg
node 23.73612739267402 5.9622e-05 deg
peri 17.59133544526188 6.0194e-05 deg
M 267.4757268861517 1.0681e-05 deg
tp 2459343.409310818688
(2021-May-08.90931082)
4.088e-05 TDB
period 1334.215852123793
3.65
7.4286e-06
2.034e-08
d
yr
n .2698214081529277 1.5023e-09 deg/d
Q 2.927150043856947 1.0865e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1193  
   data-arc span      24685 days (67.58 yr)  
   first obs. used      1951-11-29  
   last obs. used      2019-06-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52365  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:18:11  

Additional Information
 Earth MOID = .825156 au 
 Jupiter MOID = 2.49294 au 
 T_jup = 3.504 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0   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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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