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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09700503433100041 1.0926e-07  
a 3.08243114256134 7.6203e-08 au
q 2.783419803754233 3.2822e-07 au
i 8.090668261008828 9.0285e-06 deg
node 265.4348505977361 6.899e-05 deg
peri 75.53771086619551 8.5336e-05 deg
M 145.9339364421031 5.2372e-05 deg
tp 2458199.205246551847
(2018-Mar-21.70524655)
0.00028765 TDB
period 1976.689715046364
5.41
7.3301e-05
2.007e-07
d
yr
n .1821226656160125 6.7536e-09 deg/d
Q 3.381442481368448 8.3595e-08 au
  Orbit Determination Parameters
   # obs. used (total)      126  
   data-arc span      4443 days (12.16 yr)  
   first obs. used      2007-10-08  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51789  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 21:14:27  

Additional Information
 Earth MOID = 1.78891 au 
 Jupiter MOID = 1.98032 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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