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24631 (1981 EB21)
Classification: Main-belt Asteroid          SPK-ID: 2024631
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1632127775859195 3.4251e-08  
a 3.101494794790195 1.7923e-08 au
q 2.595291214664216 1.027e-07 au
i 2.222466856614949 3.8191e-06 deg
node 298.0131181083304 0.00012633 deg
peri 162.5402099238056 0.00012722 deg
M 165.2255761413759 1.6159e-05 deg
tp 2458284.849396515491
(2018-Jun-15.34939652)
8.6387e-05 TDB
period 1995.0556381923
5.46
1.7294e-05
4.735e-08
d
yr
n .1804460953912004 1.5641e-09 deg/d
Q 3.607698374916175 2.0848e-08 au
  Orbit Determination Parameters
   # obs. used (total)      902  
   data-arc span      14825 days (40.59 yr)  
   first obs. used      1979-11-22  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52317  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:45:35  

Additional Information
 Earth MOID = 1.6121 au 
 Jupiter MOID = 1.55263 au 
 T_jup = 3.200 
[ 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 14.68   n/a E2021B10  

24631 (1981 EB21)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20010606/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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