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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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2204322484777727 1.679e-07  
a 2.614652344184457 6.6693e-08 AU
q 2.038298648968198 4.8691e-07 AU
i 15.5770458876797 9.7711e-06 deg
node 138.7786920644066 2.5599e-05 deg
peri 257.718115133979 4.6375e-05 deg
M 341.885335969733 4.1058e-05 deg
tp 2457078.204672921726
(2015-Feb-24.70467292)
0.00017857 JED
period 1544.256200671532
4.23
5.9085e-05
1.618e-07
d
yr
n .2331219391208863 8.9195e-09 deg/d
Q 3.191006039400716 8.1394e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      301  
   data-arc span      5710 days (15.63 yr)  
   first obs. used      1999-02-10  
   last obs. used      2014-09-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57492  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 18:47:19  

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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