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85147 (1981 EV38)
Classification: Outer Main-belt Asteroid          SPK-ID: 2085147
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1059263969702911 4.0414e-08  
a 3.222399685009333 2.3802e-08 au
q 2.881062496778093 1.3531e-07 au
i 4.016175097641649 4.8414e-06 deg
node 320.965533441791 5.3933e-05 deg
peri 234.5993772809006 5.7454e-05 deg
M 344.2731566806057 1.9789e-05 deg
tp 2459488.801040291922
(2021-Oct-01.30104029)
0.00011621 TDB
period 2112.844506062749
5.78
2.341e-05
6.409e-08
d
yr
n .1703864146022057 1.8878e-09 deg/d
Q 3.563736873240572 2.6323e-08 au
  Orbit Determination Parameters
   # obs. used (total)      866  
   data-arc span      14730 days (40.33 yr)  
   first obs. used      1981-02-12  
   last obs. used      2021-06-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54693  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:25:30  

Additional Information
 Earth MOID = 1.88322 au 
 Jupiter MOID = 1.42702 au 
 T_jup = 3.176 
[ 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 14.98   n/a MPO637169  
diameter diameter 5.812 km 0.103 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85147 (1981 EV38)          Discovered 1981-Mar-01 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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