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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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2682346717062615 4.1549e-08  
a 3.081115252428765 2.1354e-08 au
q 2.254653314204381 1.2469e-07 au
i 3.036070648856132 6.4198e-06 deg
node 188.4855810631724 9.0834e-05 deg
peri 277.6179378509588 9.1748e-05 deg
M 150.4658543248168 1.333e-05 deg
tp 2458174.850357382351
(2018-Feb-25.35035738)
6.7894e-05 TDB
period 1975.424076619421
5.41
2.0537e-05
5.623e-08
d
yr
n .1822393501531451 1.8946e-09 deg/d
Q 3.90757719065315 2.7082e-08 au
  Orbit Determination Parameters
   # obs. used (total)      436  
   data-arc span      13964 days (38.23 yr)  
   first obs. used      1981-02-13  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59317  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:53:08  

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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