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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 ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2204322480557283 1.6853e-07  
a 2.61465235591847 6.7443e-08 AU
q 2.038298659219155 4.886e-07 AU
i 15.57704535962499 9.8466e-06 deg
node 138.7786962374236 2.7722e-05 deg
peri 257.7181137523226 4.6941e-05 deg
M 341.8853300852307 4.1413e-05 deg
tp 2457078.204698686974
(2015-Feb-24.70469869)
0.00018013 JED
period 1544.25621106698
4.23
5.975e-05
1.636e-07
d
yr
n .2331219375515825 9.0199e-09 deg/d
Q 3.191006052617785 8.231e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      278  
   data-arc span      5682 days (15.56 yr)  
   first obs. used      1999-02-10  
   last obs. used      2014-09-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58211  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 16:54:05  

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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