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13031 Durance (1989 SN4)
Classification: Main-belt Asteroid          SPK-ID: 2013031
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1314293416277522 1.3916e-08  
a 2.59868960681214 7.8224e-09 au
q 2.257145542693939 3.7153e-08 au
i 4.259251984361004 6.5459e-07 deg
node 157.179688514414 5.2273e-06 deg
peri 52.58515822088927 8.8693e-06 deg
M 13.29455941607718 7.7253e-06 deg
tp 2459339.993099040806
(2021-May-05.49309904)
3.2833e-05 TDB
period 1530.136028480148
4.19
6.9088e-06
1.892e-08
d
yr
n .2352732000942299 1.0623e-09 deg/d
Q 2.940233670930342 8.8505e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2472  
   data-arc span      15405 days (42.18 yr)  
   first obs. used      1979-04-24  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47599  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 03:09:26  

Additional Information
 Earth MOID = 1.25588 au 
 Jupiter MOID = 2.02235 au 
 T_jup = 3.400 
[ 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 13.52   n/a MPCxxxxx  
diameter diameter 6.464 km 0.217 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.202   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13031 Durance           Discovered 1989 Sept. 26 by E. W. Elst at the European Southern Observatory.
The Durance, a river in southeastern France, has its source in the Alps. Flowing through the départements of Haute-Alpes, Haute-Provence and Vaucluse, it passes the cities of Sisteron, Manosque and Cavaillon, finally meeting the Rhône river near Avignon.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080819/MPCPages.arcLast Updated: 2008-08-25

Alternate Designations
 1989 SN4 = 1979 HH2 = 1996 KN4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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