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9968 Serpe (1992 JS2)
Classification: Main-belt Asteroid          SPK-ID: 2009968
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05119399742137549 3.2084e-08  
a 2.56718130930635 1.1181e-08 au
q 2.435757035977517 8.313e-08 au
i 12.99217970427797 3.8192e-06 deg
node 213.0988729018168 1.5752e-05 deg
peri 78.64324757403594 4.3384e-05 deg
M 130.3788002439005 4.1549e-05 deg
tp 2458056.388732184528
(2017-Oct-29.88873218)
0.0001734 TDB
period 1502.391922974714
4.11
9.8153e-06
2.687e-08
d
yr
n .2396179016239685 1.5655e-09 deg/d
Q 2.698605582635183 1.1754e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2197  
   data-arc span      15366 days (42.07 yr)  
   first obs. used      1977-11-11  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44334  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 22:57:39  

Additional Information
 Earth MOID = 1.45814 au 
 Jupiter MOID = 2.37701 au 
 T_jup = 3.394 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.0   n/a MPO458926  
diameter diameter 12.355 km 0.453 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.088   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

9968 Serpe           Discovered 1992 May 4 by H. Debehogne at the European Southern Observatory.
Jean Nicolas François Jules Serpe (1914-2001) was the theoretical-physics professor of the discoverer at the University of Liege and was a member of the Académie royale de Belgique.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110517/MPCPages.arcLast Updated: 2011-06-24

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Alternate Designations
 1992 JS2 = 1977 VT = 1985 SC2 = 1988 KR1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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