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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04704911269778284 4.0947e-08  
a 2.899548006362143 1.3147e-08 au
q 2.763126845438179 1.1791e-07 au
i 2.805474552172885 4.7375e-06 deg
node 144.7784619362878 7.7863e-05 deg
peri 175.2473244716168 8.9188e-05 deg
M 198.0844550593341 4.4516e-05 deg
tp 2460011.610320288087
(2023-Mar-08.11032029)		 0.00022405 TDB
period 1803.407544412829
4.94		 1.2265e-05
3.358e-08		 d
yr
n .1996220993503786 1.3576e-09 deg/d
Q 3.035969167286107 1.3765e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2074  
   data-arc span      11368 days (31.12 yr)  
   first obs. used      1990-01-29  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5025  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 23:23:33  

Additional Information
 Earth MOID = 1.74803 au 
 Jupiter MOID = 2.1096 au 
 T_jup = 3.284 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456618.5 (2013-Nov-22.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04837543874420652 4.0568e-08  
q 2.757746123659998 1.1702e-07 au
tp 2456384.703907528764
(2013-Apr-02.20390753)		 0.00021618 TDB
node 144.8209201135703 7.7857e-05 deg
peri 171.2673533841147 8.8826e-05 deg
i 2.804112564196876 4.7403e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      2074  
   data-arc span      11368 days (31.12 yr)  
   first obs. used      1990-01-29  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5025  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 23:23:33  

Additional Information
 Jupiter MOID = 2.1096 au 
 T_jup = 3.284 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.645752742019222E-15 -4.720652562353453E-15 2.655771514503582E-12 7.878911718327644E-15 5.231726067980348E-13 1.790979771070885E-17
q -4.720652562353453E-15 1.369319064977909E-14 -7.34800161264544E-12 -2.143539037811291E-14 -1.447003539955956E-12 4.842517524957801E-17
tp 2.655771514503582E-12 -7.34800161264544E-12 4.673401201996374E-8 3.330995938668884E-11 9.25964627578081E-9 1.25056903709513E-12
node 7.878911718327644E-15 -2.143539037811291E-14 3.330995938668884E-11 6.061714566272476E-9 -6.047562692208065E-9 7.928633317613583E-11
peri 5.231726067980348E-13 -1.447003539955956E-12 9.25964627578081E-9 -6.047562692208065E-9 7.890097224390737E-9 -7.89474664005947E-11
i 1.790979771070885E-17 4.842517524957801E-17 1.25056903709513E-12 7.928633317613583E-11 -7.89474664005947E-11 2.247020916662843E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.19   n/a E2021B10  
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 
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