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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04677842487708135 5.6547e-08  
a 2.901971509334304 2.4454e-08 au
q 2.766221853089479 1.5964e-07 au
i 2.805290713811826 6.085e-06 deg
node 144.8097978267299 0.00011279 deg
peri 172.2832590419525 0.00012954 deg
M 201.8320311905509 6.3363e-05 deg
tp 2458193.830552619485
(2018-Mar-16.33055262)
0.00031888 JED
period 1805.6690055057
4.94
2.2824e-05
6.249e-08
d
yr
n .199372088075011 2.5201e-09 deg/d
Q 3.037721165579129 2.5598e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1276  
   data-arc span      9454 days (25.88 yr)  
   first obs. used      1990-01-29  
   last obs. used      2015-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5354  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:20:58  

Additional Information
 Earth MOID = 1.75071 au 
 Jupiter MOID = 2.09757 au 
 T_jup = 3.283 
[ 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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