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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457468.5 (2016-Mar-21.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2410138363639397 7.6715e-08  
q 1.762259351931973 1.8443e-07 au
tp 2457741.722676761433
(2016-Dec-19.22267676)
6.8311e-05 TDB
node 168.1609269481725 6.7168e-05 deg
peri 214.3335193215741 6.9956e-05 deg
i 5.311390302899619 7.3022e-06 deg
  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
 Jupiter MOID = 2.58271 au 
 T_jup = 3.532 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.885180412208922E-15 -1.412418867075755E-14 -2.314665014878019E-12 -5.472132974047016E-14 -2.720540270379621E-13 -2.670142198760054E-15
q -1.412418867075755E-14 3.401278329747261E-14 5.926164658854119E-12 1.319057088213444E-13 7.566660908058906E-13 7.525522118865525E-15
tp -2.314665014878019E-12 5.926164658854119E-12 4.666327424689026E-9 2.714980355952103E-11 1.315942364966521E-9 9.249059385524955E-12
node -5.472132974047016E-14 1.319057088213444E-13 2.714980355952103E-11 4.511485241814952E-9 -4.484605993433707E-9 -1.318675573984392E-10
peri -2.720540270379621E-13 7.566660908058906E-13 1.315942364966521E-9 -4.484605993433707E-9 4.893895214694562E-9 1.340731971244512E-10
i -2.670142198760054E-15 7.525522118865525E-15 9.249059385524955E-12 -1.318675573984392E-10 1.340731971244512E-10 5.332183696272573E-11

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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