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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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2068580814324882 6.3785e-08  
a 3.092336585109508 3.814e-08 AU
q 2.452661771970263 1.9745e-07 AU
i 17.69250638028102 9.047e-06 deg
node 49.3402040486752 2.682e-05 deg
peri 231.4758633176995 3.7075e-05 deg
M 59.27743228665111 2.531e-05 deg
tp 2456673.449025855533
(2014-Jan-15.94902586)
0.00014036 JED
period 1986.225552460747
5.44
3.6746e-05
1.006e-07
d
yr
n .1812482975833202 3.3532e-09 deg/d
Q 3.732011398248754 4.603e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      544  
   data-arc span      8066 days (22.08 yr)  
   first obs. used      1992-07-26  
   last obs. used      2014-08-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57655  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 14:14:17  

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 13.1 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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