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173855 (2001 TO169)
Classification: Main-belt Asteroid          SPK-ID: 2173855
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1074804564064227 5.0689e-08  
a 3.022912357001589 3.1257e-08 au
q 2.698008357194443 1.5292e-07 au
i 8.931354336042396 5.6177e-06 deg
node 273.468830277538 3.6627e-05 deg
peri 128.6947729613195 4.5969e-05 deg
M 192.6047064846114 3.0313e-05 deg
tp 2459893.142382394762
(2022-Nov-09.64238239)
0.00016888 TDB
period 1919.715010581063
5.26
2.9774e-05
8.152e-08
d
yr
n .1875278351295667 2.9085e-09 deg/d
Q 3.347816356808734 3.4616e-08 au
  Orbit Determination Parameters
   # obs. used (total)      265  
   data-arc span      7293 days (19.97 yr)  
   first obs. used      2000-07-05  
   last obs. used      2020-06-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57007  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 10:16:47  

Additional Information
 Earth MOID = 1.71843 au 
 Jupiter MOID = 2.02956 au 
 T_jup = 3.219 
[ 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 15.4   n/a MPO433117  

173855 (2001 TO169)          Discovered 2001-Oct-15 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

Alternate Designations
 2001 TO169 = 2000 NK8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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