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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 ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2024530133519639 9.2257e-08  
a 3.081340925587896 3.1432e-08 au
q 2.457514170037897 2.87e-07 au
i 13.02605764921358 1.1016e-05 deg
node 186.99790222 2.4564e-05 deg
peri 175.4848206462062 3.5765e-05 deg
M 18.02916924275579 1.8762e-05 deg
tp 2457301.557866722123
(2015-Oct-06.05786672)
0.00010309 JED
period 1975.641112490403
5.41
3.023e-05
8.277e-08
d
yr
n .1822193300817679 2.7882e-09 deg/d
Q 3.705167681137894 3.7796e-08 au
  Orbit Determination Parameters
   # obs. used (total)      278  
   data-arc span      5910 days (16.18 yr)  
   first obs. used      1999-10-09  
   last obs. used      2015-12-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54128  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 19:31:36  

Additional Information
 Earth MOID = 1.45367 au 
 Jupiter MOID = 1.75428 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 15.7 mag n/a MPO348475  

187810 (1999 TC18)          Discovered 1999-Oct-10 by Beijing Schmidt CCD Asteroid Program at Xinglong
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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