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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04704911411461055 4.0832e-08  
a 2.899548007171067 1.3025e-08 au
q 2.763126842100884 1.1769e-07 au
i 2.805474542214307 4.7286e-06 deg
node 144.7784622379709 7.7387e-05 deg
peri 175.247322526546 8.8709e-05 deg
M 198.0844563354141 4.4433e-05 deg
tp 2460011.610314235037
(2023-Mar-08.11031424)
0.00022368 TDB
period 1803.407545167508
4.94
1.2152e-05
3.327e-08
d
yr
n .1996220992668419 1.3451e-09 deg/d
Q 3.03596917224125 1.3638e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2103  
   data-arc span      11377 days (31.15 yr)  
   first obs. used      1990-01-29  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50006  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 01:13:26  

Additional Information
 Earth MOID = 1.74803 au 
 Jupiter MOID = 2.1096 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 13.21   n/a MPCxxxxx  
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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