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349222 (2007 TW4)
Classification: Main-belt Asteroid          SPK-ID: 2349222
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .119674255591678 6.7382e-08  
a 2.725655622657734 2.3099e-08 au
q 2.399464815016898 1.9059e-07 au
i 3.174486941865585 6.5597e-06 deg
node 184.2833962890729 9.5621e-05 deg
peri 177.4635186577826 9.8807e-05 deg
M 300.1297734542715 2.3448e-05 deg
tp 2459273.846364773006
(2021-Feb-28.34636477)
0.00010808 TDB
period 1643.633187910541
4.50
2.0894e-05
5.72e-08
d
yr
n .2190269718620418 2.7843e-09 deg/d
Q 3.051846430298569 2.5864e-08 au
  Orbit Determination Parameters
   # obs. used (total)      143  
   data-arc span      7982 days (21.85 yr)  
   first obs. used      1998-09-12  
   last obs. used      2020-07-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62847  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 16:50:02  

Additional Information
 Earth MOID = 1.39656 au 
 Jupiter MOID = 2.40041 au 
 T_jup = 3.344 
[ 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 17.4   n/a MPO434201  

349222 (2007 TW4)          Discovered 2007-Oct-02 by Charleston at Charleston
Reference: 20121228/Numbers.arcLast Updated: 2013-01-02

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