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22271 (1981 EZ32)
Classification: Main-belt Asteroid          SPK-ID: 2022271
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05077479373094007 3.6964e-08  
a 2.967433663283722 1.9387e-08 au
q 2.816762831120244 1.1544e-07 au
i 10.0149357904257 6.5252e-06 deg
node 191.3590426279407 2.1951e-05 deg
peri 262.1908854031767 7.0579e-05 deg
M 355.9741025688785 6.5805e-05 deg
tp 2459221.379983966420
(2021-Jan-06.87998397)
0.00034126 TDB
period 1867.110217414821
5.11
1.8298e-05
5.01e-08
d
yr
n .1928113277096473 1.8895e-09 deg/d
Q 3.118104495447202 2.0372e-08 au
  Orbit Determination Parameters
   # obs. used (total)      794  
   data-arc span      15503 days (42.44 yr)  
   first obs. used      1978-09-01  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51493  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:03:03  

Additional Information
 Earth MOID = 1.85517 au 
 Jupiter MOID = 2.00063 au 
 T_jup = 3.239 
[ 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 14.7   n/a MPO412349  

22271 (1981 EZ32)          Discovered 1981-Mar-01 by Bus, S. J. at Siding Spring
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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