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JPL Small-Body Database Browser
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35030 (1981 EW22)
Classification: Main-belt Asteroid          SPK-ID: 2035030
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2682346941304571 4.1162e-08  
a 3.081115258580291 2.0587e-08 au
q 2.254653249614323 1.2338e-07 au
i 3.036074231702089 6.2909e-06 deg
node 188.4856066122692 8.8775e-05 deg
peri 277.6179084511929 8.9687e-05 deg
M 150.46585980564 1.3324e-05 deg
tp 2458174.850324834844
(2018-Feb-25.35032483)
6.786e-05 TDB
period 1975.424082535399
5.41
1.9799e-05
5.421e-08
d
yr
n .1822393496073768 1.8265e-09 deg/d
Q 3.907577267546261 2.6109e-08 au
  Orbit Determination Parameters
   # obs. used (total)      451  
   data-arc span      13982 days (38.28 yr)  
   first obs. used      1981-02-13  
   last obs. used      2019-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58843  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 03:40:49  

Additional Information
 Earth MOID = 1.27388 au 
 Jupiter MOID = 1.27648 au 
 T_jup = 3.169 
[ 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 15.4   n/a MPO431895  

35030 (1981 EW22)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1981 EW22 = 2001 XH85 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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