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187289 (2005 TO91)
Classification: Main-belt Asteroid          SPK-ID: 2187289
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05039097673471504 4.563e-08  
a 2.732456363410788 1.6945e-08 au
q 2.594765218373531 1.2134e-07 au
i 2.972736748653454 5.3683e-06 deg
node 50.88189151142287 9.0596e-05 deg
peri 29.68996260837939 0.00010862 deg
M 64.23316929894011 5.783e-05 deg
tp 2458906.135705917462
(2020-Feb-26.63570592)
0.00026505 TDB
period 1649.788528673178
4.52
1.5346e-05
4.202e-08
d
yr
n .2182097849168132 2.0298e-09 deg/d
Q 2.870147508448045 1.7798e-08 au
  Orbit Determination Parameters
   # obs. used (total)      310  
   data-arc span      7090 days (19.41 yr)  
   first obs. used      2001-11-12  
   last obs. used      2021-04-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53506  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:14:55  

Additional Information
 Earth MOID = 1.61041 au 
 Jupiter MOID = 2.2411 au 
 T_jup = 3.350 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.57   n/a MPCxxxxx  

187289 (2005 TO91)          Discovered 2005-Oct-06 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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