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

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04694780538401712 4.3113e-08  
a 2.899805095947801 1.5476e-08 au
q 2.763665610651663 1.222e-07 au
i 2.805209701930235 4.8038e-06 deg
node 144.7795992525251 8.6507e-05 deg
peri 175.0961088518335 9.8524e-05 deg
M 158.3279535208959 4.6868e-05 deg
tp 2458207.256106562809
(2018-Mar-29.75610656)
0.00023502 TDB
period 1803.647399508008
4.94
1.4438e-05
3.953e-08
d
yr
n .1995955529324631 1.5978e-09 deg/d
Q 3.03594458124394 1.6202e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1838  
   data-arc span      10961 days (30.01 yr)  
   first obs. used      1990-01-29  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51553  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:21:34  

Additional Information
 Earth MOID = 1.75053 au 
 Jupiter MOID = 2.11006 au 
 T_jup = 3.284 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.2   n/a MPO458946  
diameter diameter 7.106 km 0.175 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.201   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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