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178445 (1999 CT118)
Classification: Main-belt Asteroid          SPK-ID: 2178445
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2204322568249435 1.6662e-07  
a 2.614652340167746 6.5553e-08 AU
q 2.038298624011949 4.8273e-07 AU
i 15.57704645720272 9.6505e-06 deg
node 138.7786898623602 2.5364e-05 deg
peri 257.7181152363685 4.6054e-05 deg
M 341.8853385395529 4.0336e-05 deg
tp 2457078.204661719166
(2015-Feb-24.70466172)
0.00017541 JED
period 1544.256197113029
4.23
5.8075e-05
1.59e-07
d
yr
n .2331219396580802 8.767e-09 deg/d
Q 3.191006056323542 8.0003e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      323  
   data-arc span      5768 days (15.79 yr)  
   first obs. used      1999-02-10  
   last obs. used      2014-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57894  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 08:53:34  

Additional Information
 Earth MOID = 1.10741 AU 
 T_jup = 3.322 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.3 mag n/a MPO302815  

178445 (1999 CT118)          Discovered 1999-Feb-10 by BAO Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

[ show close-approach data ]
Alternate Designations
 1999 CT118 = 2003 AS11 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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