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JPL Small-Body Database Browser
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233656 (2008 QA20)
Classification: Main-belt Asteroid          SPK-ID: 2233656
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1685630559499423 6.0902e-08  
a 2.569569581592359 2.1178e-08 au
q 2.136435080443136 1.5506e-07 au
i 14.96237875967577 5.7859e-06 deg
node 98.33490577315423 2.321e-05 deg
peri 301.1533533364452 3.1014e-05 deg
M 165.6907769199368 2.5516e-05 deg
tp 2457908.055716690329
(2017-Jun-03.55571669)
0.00010303 TDB
period 1504.488943955738
4.12
1.8599e-05
5.092e-08
d
yr
n .239283911953155 2.9582e-09 deg/d
Q 3.002704082741581 2.4747e-08 au
  Orbit Determination Parameters
   # obs. used (total)      236  
   data-arc span      9647 days (26.41 yr)  
   first obs. used      1992-12-06  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6179  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 08:32:14  

Additional Information
 Earth MOID = 1.18603 au 
 Jupiter MOID = 2.44245 au 
 T_jup = 3.363 
[ 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 16.2   n/a MPO437098  

233656 (2008 QA20)          Discovered 2008-Aug-30 by Hoenig, S. F., Teamo, N. at Hibiscus
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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