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146561 (2001 TC4)
Classification: Main-belt Asteroid          SPK-ID: 2146561
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1718668687805596 4.5856e-08  
a 2.659982495057572 1.2736e-08 au
q 2.202819632620927 1.2382e-07 au
i 2.364932870611878 4.3923e-06 deg
node 242.1549818424199 0.0001191 deg
peri 131.9779083922014 0.00011976 deg
M 113.4825444244019 1.2667e-05 deg
tp 2458500.991182784114
(2019-Jan-17.49118278)
5.4406e-05 TDB
period 1584.588846767627
4.34
1.138e-05
3.116e-08
d
yr
n .2271882707835268 1.6316e-09 deg/d
Q 3.117145357494217 1.4924e-08 au
  Orbit Determination Parameters
   # obs. used (total)      494  
   data-arc span      9519 days (26.06 yr)  
   first obs. used      1994-01-10  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55039  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 08:38:05  

Additional Information
 Earth MOID = 1.20453 au 
 Jupiter MOID = 2.35565 au 
 T_jup = 3.364 
[ 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 16.1   n/a MPO453931  

146561 (2001 TC4)          Discovered 2001-Oct-07 by NEAT at Palomar
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

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