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187810 (1999 TC18)
Classification: Main-belt Asteroid          SPK-ID: 2187810
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 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2026768276451572 2.075e-07  
a 3.081339939719876 1.1283e-07 AU
q 2.456823735841132 5.7847e-07 AU
i 13.02495385668814 1.8457e-05 deg
node 187.0108986258417 5.8567e-05 deg
peri 175.5571503573333 7.3813e-05 deg
M 268.6527723448615 5.8221e-05 deg
tp 2457301.803477378854
(2015-Oct-06.30347738)
0.00034294 JED
period 1975.64016433766
5.41
0.00010852
2.971e-07
d
yr
n .1822194175327931 1.0009e-08 deg/d
Q 3.705856143598621 1.357e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      111  
   data-arc span      4927 days (13.49 yr)  
   first obs. used      1999-10-09  
   last obs. used      2013-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .69169  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-08 03:01:35  

Additional Information
 Earth MOID = 1.45346 AU 
 T_jup = 3.157 
[ 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 15.6 mag n/a MPO260293  

187810 (1999 TC18)          Discovered 1999-Oct-10 by Beijing Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20

[ show close-approach data ]
Alternate Designations
 1999 TC18 = 2004 RV173 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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