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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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2205397078202666 1.724e-07  
a 2.615046037010298 7.0393e-08 AU
q 2.038324548071501 4.9562e-07 AU
i 15.57659381189577 9.9076e-06 deg
node 138.7784598803518 4.0448e-05 deg
peri 257.7009945783847 5.4802e-05 deg
M 295.288630304519 4.0517e-05 deg
tp 2457078.148624782933
(2015-Feb-24.64862478)
0.00018304 JED
period 1544.604995879666
4.23
6.2368e-05
1.708e-07
d
yr
n .2330692966553413 9.4108e-09 deg/d
Q 3.191767525949096 8.5918e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      244  
   data-arc span      5620 days (15.39 yr)  
   first obs. used      1999-02-10  
   last obs. used      2014-07-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58991  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 16:00:40  

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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