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JPL Small-Body Database Browser
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392185 (2009 QR12)
Classification: Inner Main-belt Asteroid          SPK-ID: 2392185
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05754229194909915 6.8157e-08  
a 1.960583744264955 1.3837e-08 au
q 1.847767262061803 1.3983e-07 au
i 23.13598367500493 6.9799e-06 deg
node 164.5732111865725 2.1443e-05 deg
peri 25.64500937631262 8.5602e-05 deg
M 337.7168963276004 8.2682e-05 deg
tp 2458662.565420644491
(2019-Jun-28.06542064)
0.00023033 TDB
period 1002.712717245585
2.75
1.0615e-05
2.906e-08
d
yr
n .3590260638051014 3.8007e-09 deg/d
Q 2.073400226468106 1.4633e-08 au
  Orbit Determination Parameters
   # obs. used (total)      118  
   data-arc span      6956 days (19.04 yr)  
   first obs. used      2000-02-12  
   last obs. used      2019-02-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51724  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:00:28  

Additional Information
 Earth MOID = .862154 au 
 Jupiter MOID = 2.90228 au 
 T_jup = 3.781 
[ 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 17.4   n/a MPO423458  

392185 (2009 QR12)          Discovered 2008-Feb-09 by CSS at Catalina
Reference: Last Updated: 2014-04-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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