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21100 (1992 OB)
Classification: Main-belt Asteroid          SPK-ID: 2021100
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2068581046593561 5.8073e-08  
a 3.092336579970214 3.7697e-08 AU
q 2.452661696068781 1.7765e-07 AU
i 17.69250587764629 8.5692e-06 deg
node 49.34020381705986 2.6795e-05 deg
peri 231.47585993 3.679e-05 deg
M 59.27743858598327 2.4129e-05 deg
tp 2456673.448991915582
(2014-Jan-15.94899192)
0.00013415 JED
period 1986.22554750925
5.44
3.6319e-05
9.944e-08
d
yr
n .1812482980351573 3.3142e-09 deg/d
Q 3.732011463871648 4.5495e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      564  
   data-arc span      8131 days (22.26 yr)  
   first obs. used      1992-07-26  
   last obs. used      2014-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58864  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:37:52  

Additional Information
 Earth MOID = 1.47939 AU 
 T_jup = 3.120 
[ 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 13.2 mag n/a MPO309319  

21100 (1992 OB)          Discovered 1992-Jul-26 by McNaught, R. H. at Siding Spring (413)
Reference: 20010208/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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