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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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2068580990063119 5.629e-08  
a 3.092336582551027 3.724e-08 AU
q 2.452661715596847 1.7099e-07 AU
i 17.69250605626999 8.4597e-06 deg
node 49.34020566240712 2.622e-05 deg
peri 231.4758562964659 3.5957e-05 deg
M 59.27743944043418 2.3575e-05 deg
tp 2456673.448986791899
(2014-Jan-15.94898679)
0.00013103 JED
period 1986.225549995756
5.44
3.588e-05
9.823e-08
d
yr
n .181248297808257 3.2741e-09 deg/d
Q 3.732011449505208 4.4944e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      579  
   data-arc span      8425 days (23.07 yr)  
   first obs. used      1992-07-26  
   last obs. used      2015-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58179  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:56:28  

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
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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