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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04808864271909898 5.7073e-08  
a 2.898165039948577 2.4722e-08 AU
q 2.758796216801507 1.6149e-07 AU
i 2.804201272467046 6.1272e-06 deg
node 144.8189051181071 0.00011463 deg
peri 171.374290590552 0.00013078 deg
M 122.9512647481953 6.2239e-05 deg
tp 2456385.020493911896
(2013-Apr-02.52049391)
0.00031132 JED
period 1802.117470247249
4.93
2.3059e-05
6.313e-08
d
yr
n .1997650019732667 2.5561e-09 deg/d
Q 3.037533863095648 2.5911e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1259  
   data-arc span      9185 days (25.15 yr)  
   first obs. used      1990-01-29  
   last obs. used      2015-03-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5339  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:14:59  

Additional Information
 Earth MOID = 1.74603 AU 
 T_jup = 3.285 
[ 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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