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312331 (2008 CQ172)
Classification: Main-belt Asteroid          SPK-ID: 2312331
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07328380238923213 4.976e-08  
a 2.672951979215844 2.4364e-08 au
q 2.477067894575083 1.3417e-07 au
i 2.95087458163167 5.2903e-06 deg
node 264.399291681343 0.00011833 deg
peri 34.68260873692628 0.00012589 deg
M 149.8040288538108 4.3753e-05 deg
tp 2458336.288861234528
(2018-Aug-05.78886123)
0.00019222 TDB
period 1596.192117028548
4.37
2.1824e-05
5.975e-08
d
yr
n .2255367609947677 3.0836e-09 deg/d
Q 2.868836063856605 2.6149e-08 au
  Orbit Determination Parameters
   # obs. used (total)      173  
   data-arc span      6692 days (18.32 yr)  
   first obs. used      2001-09-23  
   last obs. used      2020-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60285  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 18:45:27  

Additional Information
 Earth MOID = 1.46199 au 
 Jupiter MOID = 2.26774 au 
 T_jup = 3.374 
[ 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 17.2   n/a MPO455302  

312331 (2008 CQ172)          Discovered 2008-Feb-13 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2008 CQ172 = 2006 WH96 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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