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85137 (1981 DS3)
Classification: Main-belt Asteroid          SPK-ID: 2085137
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06978796300540775 4.7713e-08  
a 3.023231112268219 2.4553e-08 au
q 2.812245971248447 1.5652e-07 au
i 9.859524355031491 5.2811e-06 deg
node 296.315384817091 2.8525e-05 deg
peri 146.8625511077312 5.4835e-05 deg
M 329.3771789368629 4.5683e-05 deg
tp 2459559.823299549857
(2021-Dec-11.32329955)
0.0002439 TDB
period 1920.018659179835
5.26
2.339e-05
6.404e-08
d
yr
n .1874981778321777 2.2841e-09 deg/d
Q 3.234216253287991 2.6266e-08 au
  Orbit Determination Parameters
   # obs. used (total)      661  
   data-arc span      14526 days (39.77 yr)  
   first obs. used      1981-02-28  
   last obs. used      2020-12-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52539  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:11:28  

Additional Information
 Earth MOID = 1.83439 au 
 Jupiter MOID = 1.93152 au 
 T_jup = 3.219 
[ 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 14.86   n/a E2021B10  
diameter diameter 3.513 km 1.079 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.172   0.166 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85137 (1981 DS3)          Discovered 1981-Feb-28 by Bus, S. J. at Siding Spring
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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