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JPL Small-Body Database Browser
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8681 Burs (1992 EN9)
Classification: Main-belt Asteroid          SPK-ID: 2008681
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1728018106504959 3.709e-08  
a 3.047612513329021 1.7257e-08 au
q 2.520979552864658 1.1641e-07 au
i 2.57067817520371 4.437e-06 deg
node 151.4196860030744 8.6795e-05 deg
peri 237.8356862278188 8.7646e-05 deg
M 143.5479824493004 1.3229e-05 deg
tp 2457825.623230414320
(2017-Mar-13.12323041)
6.8497e-05 TDB
period 1943.291938285298
5.32
1.6506e-05
4.519e-08
d
yr
n .185252659627484 1.5735e-09 deg/d
Q 3.574245473793385 2.0239e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1926  
   data-arc span      10878 days (29.78 yr)  
   first obs. used      1989-07-29  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51756  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:36:49  

Additional Information
 Earth MOID = 1.52654 au 
 Jupiter MOID = 1.87017 au 
 T_jup = 3.213 
[ show covariance matrix ]

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 MPO384834  
diameter diameter 12.610 km 0.199 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.084   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

8681 Burs           Discovered 1992 Mar. 2 at the European Southern Observatory in the course of the Uppsala-ESO Survey of Asteroids and Comets.
Burs is a small parish on the Swedish island of Gotland. Gustav Edman (1881-1912), well known for his height (2.46 meters) and strength, was born in Burs. Burs also has the remains of the largest house ( 67 x 11 meters) in Sweden from the Roman Iron Age.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000320/MPCPages.arcLast Updated: 2013-03-29

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Alternate Designations
 1992 EN9 = 1990 WR15 = 1997 AS4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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