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312513 (2009 CD57)
Classification: Main-belt Asteroid          SPK-ID: 2312513
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1891557281433138 4.0907e-08  
a 2.358924196317465 1.4152e-08 au
q 1.912720172328154 9.694e-08 au
i 5.025902692202298 4.5859e-06 deg
node 80.99963573744422 6.0793e-05 deg
peri 306.3103816671441 6.2464e-05 deg
M 158.0303486011663 1.3334e-05 deg
tp 2458419.591940501863
(2018-Oct-28.09194050)
4.8182e-05 TDB
period 1323.333798035969
3.62
1.1909e-05
3.261e-08
d
yr
n .2720402067371781 2.4482e-09 deg/d
Q 2.805128220306777 1.6829e-08 au
  Orbit Determination Parameters
   # obs. used (total)      251  
   data-arc span      7111 days (19.47 yr)  
   first obs. used      2000-11-01  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54979  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:27:26  

Additional Information
 Earth MOID = .922754 au 
 Jupiter MOID = 2.64542 au 
 T_jup = 3.523 
[ 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 MPO455303  

312513 (2009 CD57)          Discovered 2009-Feb-14 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2009 CD57 = 2000 WT166 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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