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12491 Musschenbroek (1997 JE15)
Classification: Main-belt Asteroid          SPK-ID: 2012491
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04651384842968555 5.5494e-08  
a 2.901233346354582 2.363e-08 au
q 2.766285818223096 1.5778e-07 au
i 2.805325419140151 6.0406e-06 deg
node 144.8087968267514 0.00010817 deg
peri 173.1643251216092 0.00012464 deg
M 240.7493682476354 6.2346e-05 deg
tp 2458198.402824972736
(2018-Mar-20.90282497)
0.00031387 JED
period 1804.980098027168
4.94
2.2052e-05
6.038e-08
d
yr
n .1994481824998945 2.4367e-09 deg/d
Q 3.036180874486069 2.4729e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1356  
   data-arc span      9573 days (26.21 yr)  
   first obs. used      1990-01-29  
   last obs. used      2016-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52923  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:14:15  

Additional Information
 Earth MOID = 1.75233 au 
 Jupiter MOID = 2.10129 au 
 T_jup = 3.284 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.1 mag n/a MPO267756  

12491 Musschenbroek           Discovered 1997 May 3 by E. W. Elst at the European Southern Observatory.
Petrus van Musschenbroek (1692-1761) was a Dutch experimental scientist who will be always remembered for his invention of the Leiden jar, a capacitor capable of collecting electrostatic electricity. In 1792 he published his treatise on experimental physics, Physicae experimentales.
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

Alternate Designations
 1997 JE15 = 1990 BJ5 = 1996 CM2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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