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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07182356401790201 5.1308e-08  
a 2.810638600280405 2.4187e-08 AU
q 2.608768518841979 1.3798e-07 AU
i 4.400875467588934 7.5658e-06 deg
node 12.23747438393096 7.0954e-05 deg
peri 79.30886527847805 9.2686e-05 deg
M 131.4879302603656 5.6894e-05 deg
tp 2456371.878363430312
(2013-Mar-20.37836343)
0.00027237 JED
period 1721.099333733313
4.71
2.2216e-05
6.082e-08
d
yr
n .2091686359665877 2.7e-09 deg/d
Q 3.012508681718831 2.5924e-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 = 1.62955 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 14.1 mag n/a MPO296218  

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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