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9923 (1981 EB24)
Classification: Main-belt Asteroid          SPK-ID: 2009923
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0719397599128979 5.1318e-08  
a 2.810399593729302 2.4248e-08 AU
q 2.608220121697111 1.3804e-07 AU
i 4.401111450605259 7.5662e-06 deg
node 12.23864865382072 7.095e-05 deg
peri 79.2678007125501 9.2613e-05 deg
M 89.68176684778547 5.6804e-05 deg
tp 2456371.801273938682
(2013-Mar-20.30127394)
0.00027182 JED
period 1720.879804297539
4.71
2.2271e-05
6.097e-08
d
yr
n .2091953192204214 2.7074e-09 deg/d
Q 3.012579065761494 2.5992e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      782  
   data-arc span      12606 days (34.51 yr)  
   first obs. used      1979-11-24  
   last obs. used      2014-05-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52227  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:43:44  

Additional Information
 Earth MOID = 1.62865 AU 
 T_jup = 3.313 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.0 mag n/a MPO259412  

9923 (1981 EB24)          Discovered 1981-Mar-07 by Bus, S. J. at Siding Spring (413)
Reference: 19990202/Numbers.arcLast Updated: 2004-04-19

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