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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04808864346266351 6.0139e-08  
a 2.898165039602415 2.5888e-08 AU
q 2.758796214317018 1.7308e-07 AU
i 2.80420279959701 6.5593e-06 deg
node 144.8189239538946 0.00011844 deg
peri 171.3742730762301 0.00013629 deg
M 122.9512636206138 6.5476e-05 deg
tp 2456385.020499666707
(2013-Apr-02.52049967)
0.00032831 JED
period 1802.117469924376
4.93
2.4146e-05
6.611e-08
d
yr
n .1997650020090572 2.6766e-09 deg/d
Q 3.037533864887811 2.7133e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1166  
   data-arc span      8732 days (23.91 yr)  
   first obs. used      1990-01-29  
   last obs. used      2013-12-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54579  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 20:23:19  

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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