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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06951396880847348 5.3265e-08  
a 3.02428445859041 3.1274e-08 au
q 2.814054443068005 1.6554e-07 au
i 9.859458114184266 6.8847e-06 deg
node 296.3151697612349 2.9629e-05 deg
peri 146.4986064570721 5.5597e-05 deg
M 255.4684071681031 4.6718e-05 deg
tp 2459558.298639634954
(2021-Dec-09.79863964)
0.00025113 TDB
period 1921.022198442085
5.26
2.9798e-05
8.158e-08
d
yr
n .1874002290509467 2.9068e-09 deg/d
Q 3.234514474112815 3.3448e-08 au
  Orbit Determination Parameters
   # obs. used (total)      516  
   data-arc span      14397 days (39.42 yr)  
   first obs. used      1981-02-28  
   last obs. used      2020-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54408  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 07:54:59  

Additional Information
 Earth MOID = 1.83625 au 
 Jupiter MOID = 1.93207 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 14.8   n/a MPO439613  
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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