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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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456669.5 (2014-Jan-12.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04499419734152232 3.801e-08  
q 2.295935153590863 9.1128e-08 au
tp 2456507.612998244061
(2013-Aug-03.11299824)
0.00018692 TDB
node 213.957982636572 1.8072e-05 deg
peri 116.2748408371062 5.1812e-05 deg
i 11.5459192157632 4.5304e-06 deg
  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
 Jupiter MOID = 2.61987 au 
 T_jup = 3.495 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.444794673337419E-15 -3.448994091168147E-15 2.505503872402605E-12 -2.106784782013313E-17 6.447948844261341E-13 3.679876306184515E-15
q -3.448994091168147E-15 8.30432780545214E-15 -5.817298378636985E-12 1.541008500541176E-16 -1.496080217199332E-12 -8.610022364814568E-15
tp 2.505503872402605E-12 -5.817298378636985E-12 3.493850323467186E-8 -9.920395004843149E-13 9.088232248174515E-9 5.846989091806937E-12
node -2.106784782013313E-17 1.541008500541176E-16 -9.920395004843149E-13 3.266071263706268E-10 -3.196061755822027E-10 -1.628375584661796E-11
peri 6.447948844261341E-13 -1.496080217199332E-12 9.088232248174515E-9 -3.196061755822027E-10 2.684513148916662E-9 1.744925955436091E-11
i 3.679876306184515E-15 -8.610022364814568E-15 5.846989091806937E-12 -1.628375584661796E-11 1.744925955436091E-11 2.052496433756279E-11

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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