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12971 (4054 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2012971
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1052946230892851 3.3497e-08  
a 3.080555140724399 1.9709e-08 au
q 2.756189248276064 1.0513e-07 au
i 10.5928063071648 4.7793e-06 deg
node 41.84667895303228 2.089e-05 deg
peri 266.115513671237 3.1533e-05 deg
M 14.79331027074599 2.2939e-05 deg
tp 2458919.346963850793
(2020-Mar-10.84696385)
0.00012583 TDB
period 1974.885436661716
5.41
1.8952e-05
5.189e-08
d
yr
n .1822890550089491 1.7493e-09 deg/d
Q 3.404921033172734 2.1784e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1648  
   data-arc span      20599 days (56.40 yr)  
   first obs. used      1964-03-11  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46191  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:38:54  

Additional Information
 Earth MOID = 1.76827 au 
 Jupiter MOID = 1.87475 au 
 T_jup = 3.193 
[ 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 13.3   n/a MPO350906  

12971 (4054 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 19991222/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 4054 T-3 = 1964 EL = 1997 JG1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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