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22643 (1998 OB3)
Classification: Main-belt Asteroid          SPK-ID: 2022643
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07168524864590589 3.6793e-08  
a 2.996342393985999 1.4743e-08 au
q 2.781548844444844 1.1288e-07 au
i 4.155018586338934 3.9954e-06 deg
node 196.7967535579117 4.8617e-05 deg
peri 227.4354003271584 5.6309e-05 deg
M 358.3456711420593 2.6852e-05 deg
tp 2459209.205724715300
(2020-Dec-25.70572472)
0.00014129 TDB
period 1894.460634271461
5.19
1.3982e-05
3.828e-08
d
yr
n .1900277015460089 1.4025e-09 deg/d
Q 3.211135943527154 1.58e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1084  
   data-arc span      10928 days (29.92 yr)  
   first obs. used      1991-03-13  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52277  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:08:35  

Additional Information
 Earth MOID = 1.79604 au 
 Jupiter MOID = 2.03127 au 
 T_jup = 3.246 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.63   n/a E2021B10  

22643 (1998 OB3)          Discovered 1998-Jul-20 by ODAS at Caussols
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 OB3 = 1999 TE171 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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