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JPL Small-Body Database Browser
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172290 (2002 TW166)
Classification: Main-belt Asteroid          SPK-ID: 2172290
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02263144068856821 4.8832e-08  
a 2.704234934306432 2.7726e-08 au
q 2.643034201782722 1.3617e-07 au
i 13.64713791801057 5.2385e-06 deg
node 257.6996060098921 2.38e-05 deg
peri 136.3244992115474 0.00012908 deg
M 320.3521620041997 0.00012782 deg
tp 2459179.388352566064
(2020-Nov-25.88835257)
0.0005774 TDB
period 1624.295552524322
4.45
2.498e-05
6.839e-08
d
yr
n .2216345414727776 3.4085e-09 deg/d
Q 2.765435666830142 2.8353e-08 au
  Orbit Determination Parameters
   # obs. used (total)      436  
   data-arc span      7009 days (19.19 yr)  
   first obs. used      1999-02-14  
   last obs. used      2018-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52503  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 05:52:43  

Additional Information
 Earth MOID = 1.66537 au 
 Jupiter MOID = 2.39978 au 
 T_jup = 3.325 
[ 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 15.2   n/a MPO475460  

172290 (2002 TW166)          Discovered 2002-Oct-03 by NEAT at Palomar
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

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