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JPL Small-Body Database Browser
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379961 (2012 QA9)
Classification: Main-belt Asteroid          SPK-ID: 2379961
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 .09672266113713329 1.1588e-07  
a 3.082543518367989 8.3587e-08 au
q 2.784391706200415 3.6105e-07 au
i 8.090897040924679 9.4401e-06 deg
node 265.4358622636177 8.0404e-05 deg
peri 75.50092207528255 9.9145e-05 deg
M 73.15604487949264 5.8318e-05 deg
tp 2458198.792473758467
(2018-Mar-21.29247376)
0.00032363 TDB
period 1976.797811926147
5.41
8.0405e-05
2.201e-07
d
yr
n .1821127066349918 7.4073e-09 deg/d
Q 3.380695330535562 9.1671e-08 au
  Orbit Determination Parameters
   # obs. used (total)      118  
   data-arc span      4105 days (11.24 yr)  
   first obs. used      2007-10-08  
   last obs. used      2019-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52309  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:44:44  

Additional Information
 Earth MOID = 1.78895 au 
 Jupiter MOID = 1.97846 au 
 T_jup = 3.205 
[ 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 15.8   n/a MPO460490  

379961 (2012 QA9)          Discovered 2007-Oct-08 by CSS at Catalina
Reference: Last Updated: 2013-11-20

[ show close-approach data ]
Alternate Designations
 2012 QA9 = 2007 TG242 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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