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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .220539786836535 2.0275e-07  
a 2.61504604117542 7.7193e-08 AU
q 2.038324344686868 5.717e-07 AU
i 15.57659037904503 1.0689e-05 deg
node 138.7784444459206 5.1979e-05 deg
peri 257.7010208937653 6.6585e-05 deg
M 295.2886140785257 4.311e-05 deg
tp 2457078.148695065022
(2015-Feb-24.64869507)
0.00019476 JED
period 1544.604999569926
4.23
6.8392e-05
1.872e-07
d
yr
n .2330692960985087 1.032e-08 deg/d
Q 3.191767737663972 9.4217e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      231  
   data-arc span      5230 days (14.32 yr)  
   first obs. used      1999-02-10  
   last obs. used      2013-06-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .62173  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-07 22:38:20  

Additional Information
 Earth MOID = 1.10643 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 15.2 mag n/a MPO264408  

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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