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90695 (1981 ES39)
Classification: Main-belt Asteroid          SPK-ID: 2090695
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1708700339681027 3.1445e-08  
a 3.000517909694591 1.7269e-08 au
q 2.487819312543176 9.9768e-08 au
i 1.384570311498241 3.2484e-06 deg
node 278.1650392062837 0.00020117 deg
peri 177.4909005445567 0.00020171 deg
M 331.5546178814303 1.5255e-05 deg
tp 2459546.503721351113
(2021-Nov-28.00372135)
8.095e-05 TDB
period 1898.422016667077
5.20
1.6389e-05
4.487e-08
d
yr
n .1896311762292065 1.637e-09 deg/d
Q 3.513216506846006 2.0219e-08 au
  Orbit Determination Parameters
   # obs. used (total)      926  
   data-arc span      15008 days (41.09 yr)  
   first obs. used      1979-11-24  
   last obs. used      2020-12-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53773  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:41:27  

Additional Information
 Earth MOID = 1.50476 au 
 Jupiter MOID = 1.66914 au 
 T_jup = 3.230 
[ 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 15.17   n/a E2021B10  
diameter diameter 5.339 km 0.224 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.068   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

90695 (1981 ES39)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

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