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JPL Small-Body Database Browser
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390838 (2004 QM12)
Classification: Main-belt Asteroid          SPK-ID: 2390838
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2589387605045976 5.4687e-08  
a 3.090365233447339 4.9473e-08 au
q 2.290149890391984 1.7634e-07 au
i 10.60674797508911 6.667e-06 deg
node 79.85110202526511 5.1281e-05 deg
peri 225.5666716613998 5.412e-05 deg
M 270.3121193209914 2.0576e-05 deg
tp 2459094.861227495230
(2020-Sep-02.36122750)
0.0001193 TDB
period 1984.326539448898
5.43
4.765e-05
1.305e-07
d
yr
n .1814217533470987 4.3565e-09 deg/d
Q 3.890580576502694 6.2283e-08 au
  Orbit Determination Parameters
   # obs. used (total)      179  
   data-arc span      5394 days (14.77 yr)  
   first obs. used      2004-08-21  
   last obs. used      2019-05-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60392  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:07:25  

Additional Information
 Earth MOID = 1.28865 au 
 Jupiter MOID = 1.43416 au 
 T_jup = 3.147 
[ 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 15.7   n/a MPO437600  

390838 (2004 QM12)          Discovered 2004-Aug-21 by Siding Spring Survey at Siding Spring
Reference: Last Updated: 2014-04-17

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