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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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1052946238287701 3.2551e-08  
a 3.080555138897639 1.7159e-08 au
q 2.756189244363627 9.9815e-08 au
i 10.59280340801573 4.1002e-06 deg
node 41.84667154685603 2.0075e-05 deg
peri 266.1155191257371 3.0334e-05 deg
M 14.79331257034268 2.0897e-05 deg
tp 2458919.346951307867
(2020-Mar-10.84695131)
0.0001148 TDB
period 1974.885434905064
5.41
1.6501e-05
4.518e-08
d
yr
n .1822890551710944 1.5231e-09 deg/d
Q 3.404921033431651 1.8966e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1908  
   data-arc span      20679 days (56.62 yr)  
   first obs. used      1964-03-11  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43589  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:49:25  

Additional Information
 Earth MOID = 1.76827 au 
 Jupiter MOID = 1.87475 au 
 T_jup = 3.193 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457265.5 (2015-Aug-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1064573111522108 3.2488e-08  
q 2.752318388237129 1.002e-07 au
tp 2456952.875054337349
(2014-Oct-22.37505434)
0.00011932 TDB
node 41.92235295894595 2.0032e-05 deg
peri 267.5746144898806 3.0122e-05 deg
i 10.60738122912314 4.1057e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1908  
   data-arc span      20679 days (56.62 yr)  
   first obs. used      1964-03-11  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43589  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:49:25  

Additional Information
 Jupiter MOID = 1.87475 au 
 T_jup = 3.193 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.055502582960642E-15 -3.216883627177701E-15 1.01448916132501E-12 -8.340739396588241E-16 1.717883373526021E-13 -2.269682530955357E-15
q -3.216883627177701E-15 1.004100574323456E-14 -3.898524954016063E-12 3.462449194812497E-15 -6.679605723566935E-13 7.435705166895455E-15
tp 1.01448916132501E-12 -3.898524954016063E-12 1.423795860453996E-8 -1.856181272788767E-11 2.700850124667564E-9 -6.706949861837064E-12
node -8.340739396588241E-16 3.462449194812497E-15 -1.856181272788767E-11 4.012689434513701E-10 -3.976863553523304E-10 -2.853569737046871E-11
peri 1.717883373526021E-13 -6.679605723566935E-13 2.700850124667564E-9 -3.976863553523304E-10 9.07349592203794E-10 2.685443290761684E-11
i -2.269682530955357E-15 7.435705166895455E-15 -6.706949861837064E-12 -2.853569737046871E-11 2.685443290761684E-11 1.685636735307368E-11

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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