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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2026054482027149 1.0747e-07  
a 3.081671118859271 7.0283e-08 AU
q 2.457307760609427 3.117e-07 AU
i 13.02462136484929 1.2487e-05 deg
node 187.0029734265776 5.0343e-05 deg
peri 175.5289759089125 6.4111e-05 deg
M 305.120654323837 4.4565e-05 deg
tp 2457301.720332155696
(2015-Oct-06.22033216)
0.00025278 JED
period 1975.95868245112
5.41
6.7598e-05
1.851e-07
d
yr
n .1821900443552951 6.2327e-09 deg/d
Q 3.706034477109116 8.4523e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      129  
   data-arc span      5428 days (14.86 yr)  
   first obs. used      1999-10-09  
   last obs. used      2014-08-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .62192  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 17:02:29  

Additional Information
 Earth MOID = 1.45541 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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