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469477 (2002 SM12)
Classification: Main-belt Asteroid          SPK-ID: 2469477
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2392800741724448 7.6545e-08  
a 2.322398008386374 1.6092e-08 au
q 1.766694440681744 1.8385e-07 au
i 5.308923167169105 7.3002e-06 deg
node 168.0520321485495 6.7205e-05 deg
peri 214.4809346933623 7.0066e-05 deg
M 350.4252552530421 2.1899e-05 deg
tp 2459034.881760174103
(2020-Jul-04.38176017)
7.8902e-05 TDB
period 1292.7168284679
3.54
1.3436e-05
3.679e-08
d
yr
n .2784832625925233 2.8944e-09 deg/d
Q 2.878101576091003 1.9942e-08 au
  Orbit Determination Parameters
   # obs. used (total)      136  
   data-arc span      6119 days (16.75 yr)  
   first obs. used      2002-09-27  
   last obs. used      2019-06-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54719  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 08:02:30  

Additional Information
 Earth MOID = .772491 au 
 Jupiter MOID = 2.58271 au 
 T_jup = 3.532 
[ 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 17.9   n/a MPO440883  

469477 (2002 SM12)          Discovered 2002-Sep-27 by NEAT at Palomar
Reference: Last Updated: 2016-08-22

Alternate Designations
 2002 SM12 = 2009 QC6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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