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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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2204322570000773 1.6908e-07  
a 2.614652361848374 6.8616e-08 AU
q 2.038298640455555 4.8952e-07 AU
i 15.5770457789172 9.8985e-06 deg
node 138.7786877653944 3.2468e-05 deg
peri 257.718121520393 4.9082e-05 deg
M 341.8853280585265 4.1771e-05 deg
tp 2457078.204707645071
(2015-Feb-24.70470764)
0.00018171 JED
period 1544.256216320427
4.23
6.0789e-05
1.664e-07
d
yr
n .2331219367585187 9.1767e-09 deg/d
Q 3.191006083241194 8.3742e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      258  
   data-arc span      5653 days (15.48 yr)  
   first obs. used      1999-02-10  
   last obs. used      2014-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57782  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 17:02:14  

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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