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JPL Small-Body Database Browser
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12729 Berger (1991 RL7)
Classification: Main-belt Asteroid          SPK-ID: 2012729
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04561583011366488 3.8356e-08  
a 2.404059454333278 8.8406e-09 au
q 2.294396286681261 9.2025e-08 au
i 11.55156457783732 4.5327e-06 deg
node 213.8719515708479 1.8056e-05 deg
peri 117.6533687248571 5.0886e-05 deg
M 191.8845445081121 4.8889e-05 deg
tp 2459236.301244408287
(2021-Jan-21.80124441)		 0.00018554 TDB
period 1361.495570513015
3.73		 7.5101e-06
2.056e-08		 d
yr
n .2644151092348769 1.4585e-09 deg/d
Q 2.513722621985294 9.2439e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1883  
   data-arc span      13115 days (35.91 yr)  
   first obs. used      1983-06-14  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46649  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:04:57  

Additional Information
 Earth MOID = 1.30968 au 
 Jupiter MOID = 2.61987 au 
 T_jup = 3.495 
[ 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 13.7   n/a MPO365402  

12729 Berger           Discovered 1991 Sept. 13 by F. Borngen and L. D. Schmadel at Tautenburg.
The German medical doctor Hans Berger (1873-1941) was professor of neurology and psychiatry in Jena. He invented the electroencephalograph, placing electrical recording equipment on the surface of the skull.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000523/MPCPages.arcLast Updated: 2013-03-29

Alternate Designations
 1991 RL7 = 1998 QO65 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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