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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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07182356404071445 5.1296e-08  
a 2.810638600307806 2.4185e-08 AU
q 2.608768518803295 1.3793e-07 AU
i 4.400875518524333 7.5641e-06 deg
node 12.23747495250547 7.0931e-05 deg
peri 79.3088647251069 9.267e-05 deg
M 131.4879302445512 5.6894e-05 deg
tp 2456371.878363496726
(2013-Mar-20.37836350)
0.00027237 JED
period 1721.099333758482
4.71
2.2214e-05
6.082e-08
d
yr
n .2091686359635289 2.6997e-09 deg/d
Q 3.012508681812318 2.5922e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      790  
   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      .51978  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 00:31:48  

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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