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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2068954284762293 8.1476e-08  
a 3.092802997329904 3.9653e-08 AU
q 2.452916196004767 2.576e-07 AU
i 17.69181864022306 9.8103e-06 deg
node 49.3457457530763 2.6821e-05 deg
peri 231.5110795570276 3.8167e-05 deg
M 22.99758472076511 2.9299e-05 deg
tp 2456673.586874428735
(2014-Jan-16.08687443)
0.00016162 JED
period 1986.674938277398
5.44
3.8207e-05
1.046e-07
d
yr
n .1812072992233687 3.4849e-09 deg/d
Q 3.73268979865504 4.7857e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      536  
   data-arc span      8001 days (21.91 yr)  
   first obs. used      1992-07-26  
   last obs. used      2014-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57896  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:46:04  

Additional Information
 Earth MOID = 1.47798 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 13.1 mag n/a MPO266066  

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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