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212978 (2009 CT25)
Classification: Main-belt Asteroid          SPK-ID: 2212978
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 .06732651320456622 6.211e-08  
a 3.023349642864825 3.6313e-08 au
q 2.819798053212466 1.854e-07 au
i 8.911330690060966 6.7318e-06 deg
node 341.555534703838 4.4906e-05 deg
peri 177.7407628706664 7.0299e-05 deg
M 45.11024405956788 5.2912e-05 deg
tp 2458759.895544342162
(2019-Oct-03.39554434)
0.00028246 TDB
period 1920.131576376388
5.26
3.4594e-05
9.471e-08
d
yr
n .1874871516249842 3.3778e-09 deg/d
Q 3.226901232517184 3.8758e-08 au
  Orbit Determination Parameters
   # obs. used (total)      164  
   data-arc span      6794 days (18.60 yr)  
   first obs. used      2001-09-20  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54341  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 08:51:58  

Additional Information
 Earth MOID = 1.82847 au 
 Jupiter MOID = 1.75822 au 
 T_jup = 3.224 
[ 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 16.0   n/a MPO422828  

212978 (2009 CT25)          Discovered 2009-Feb-01 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 2009 CT25 = 2004 EA85 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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