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JPL Small-Body Database Browser
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233658 (2008 QG28)
Classification: Main-belt Asteroid          SPK-ID: 2233658
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1487605153203154 5.0456e-08  
a 2.766576132558519 3.1394e-08 au
q 2.355018841406228 1.4661e-07 au
i 9.967009683458045 5.2271e-06 deg
node 118.6541944884383 3.4422e-05 deg
peri 289.6892162041165 3.9025e-05 deg
M 64.78278900416201 2.0414e-05 deg
tp 2458298.038914710720
(2018-Jun-28.53891471)
9.321e-05 TDB
period 1680.785782426646
4.60
2.8609e-05
7.833e-08
d
yr
n .2141855337925619 3.6457e-09 deg/d
Q 3.178133423710809 3.6064e-08 au
  Orbit Determination Parameters
   # obs. used (total)      409  
   data-arc span      7140 days (19.55 yr)  
   first obs. used      1999-09-14  
   last obs. used      2019-04-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59601  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:07:29  

Additional Information
 Earth MOID = 1.38759 au 
 Jupiter MOID = 2.22645 au 
 T_jup = 3.301 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.3   n/a MPO418248  

233658 (2008 QG28)          Discovered 2008-Aug-30 by La Sagra at La Sagra
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

Alternate Designations
 2008 QG28 = 2004 XT178 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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