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90691 (1981 EA32)
Classification: Main-belt Asteroid          SPK-ID: 2090691
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 .104842051853931 5.0073e-08  
a 2.988522361770442 2.396e-08 au
q 2.675199545351073 1.5952e-07 au
i 10.26349391556293 4.3474e-06 deg
node 236.3287084484415 3.6889e-05 deg
peri 163.994749170952 4.8803e-05 deg
M 347.2554208129001 3.3343e-05 deg
tp 2459067.304572766191
(2020-Aug-05.80457277)
0.00017505 TDB
period 1887.049061625509
5.17
2.2694e-05
6.213e-08
d
yr
n .190774054220877 2.2943e-09 deg/d
Q 3.301845178189811 2.6472e-08 au
  Orbit Determination Parameters
   # obs. used (total)      571  
   data-arc span      14418 days (39.47 yr)  
   first obs. used      1981-02-09  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58813  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:13:37  

Additional Information
 Earth MOID = 1.68557 au 
 Jupiter MOID = 2.08734 au 
 T_jup = 3.224 
[ 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 14.6   n/a MPO449558  

90691 (1981 EA32)          Discovered 1981-Mar-06 by Bus, S. J. at Siding Spring
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1981 EA32 = 1999 UF25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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