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351291 (2004 TW81)
Classification: Main-belt Asteroid          SPK-ID: 2351291
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1257937561553319 4.9055e-08  
a 2.389858737195784 1.7008e-08 au
q 2.089229429963288 1.2011e-07 au
i 4.656781510851808 7.3509e-06 deg
node 353.6594887419526 6.8936e-05 deg
peri 90.88179621307647 8.2809e-05 deg
M 27.66394559680353 3.8993e-05 deg
tp 2458896.802474215668
(2020-Feb-17.30247422)
0.00014644 TDB
period 1349.449923971553
3.69
1.4406e-05
3.944e-08
d
yr
n .2667753679517706 2.8479e-09 deg/d
Q 2.69048804442828 1.9148e-08 au
  Orbit Determination Parameters
   # obs. used (total)      147  
   data-arc span      6552 days (17.94 yr)  
   first obs. used      2002-02-10  
   last obs. used      2020-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59903  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 23:54:17  

Additional Information
 Earth MOID = 1.11149 au 
 Jupiter MOID = 2.50302 au 
 T_jup = 3.517 
[ 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 17.9   n/a MPO503401  

351291 (2004 TW81)          Discovered 2004-Oct-05 by Spacewatch at Kitt Peak
Reference: 20130127/Numbers.arcLast Updated: 2013-01-31

Alternate Designations
 2004 TW81 = 2002 CB309 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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