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187813 (1999 TR154)
Classification: Main-belt Asteroid          SPK-ID: 2187813
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2301206960650541 6.4435e-08  
a 3.019469102597054 1.8293e-08 au
q 2.324626770960496 1.8936e-07 au
i 1.514453706458359 4.3574e-06 deg
node 128.3988481464145 0.00026174 deg
peri 233.7010602077171 0.00026204 deg
M 33.95304209787076 1.1725e-05 deg
tp 2459019.753247520900
(2020-Jun-19.25324752)		 6.2216e-05 TDB
period 1916.435961906236
5.25		 1.7416e-05
4.768e-08		 d
yr
n .1878486978724382 1.7071e-09 deg/d
Q 3.714311434233613 2.2503e-08 au
   Orbit Determination Parameters
   # obs. used (total)      384  
   data-arc span      7766 days (21.26 yr)  
   first obs. used      1999-10-07  
   last obs. used      2021-01-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54281  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:56:56  

Additional Information
 Earth MOID = 1.32078 au 
 Jupiter MOID = 1.74302 au 
 T_jup = 3.205 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO449935  

187813 (1999 TR154)          Discovered 1999-Oct-07 by LINEAR at Socorro
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20

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Alternate Designations
 1999 TR154 = 2004 RW12 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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