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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1052369449909548 3.7134e-08  
a 2.989908708988893 1.8882e-08 au
q 2.675259850653052 1.1245e-07 au
i 10.26128982305372 4.1625e-06 deg
node 236.3245796801265 2.5609e-05 deg
peri 164.0810807349869 3.5788e-05 deg
M 62.68756524200573 2.3021e-05 deg
tp 2459067.675460372534
(2020-Aug-06.17546037)
0.00012127 TDB
period 1888.362290174987
5.17
1.7889e-05
4.898e-08
d
yr
n .1906413837392613 1.806e-09 deg/d
Q 3.304557567324733 2.087e-08 au
  Orbit Determination Parameters
   # obs. used (total)      797  
   data-arc span      14611 days (40.00 yr)  
   first obs. used      1981-02-09  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53902  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:38:52  

Additional Information
 Earth MOID = 1.68506 au 
 Jupiter MOID = 2.08644 au 
 T_jup = 3.224 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.75   n/a MPCxxxxx  

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

Alternate Designations
 1981 EA32 = 1999 UF25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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