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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1047930027370425 3.2355e-08  
a 3.07922943262973 1.6729e-08 au
q 2.75654773426818 9.8845e-08 au
i 10.59384803363758 4.0633e-06 deg
node 41.83665246337539 1.9703e-05 deg
peri 266.0790629140516 3.0123e-05 deg
M 87.08919328830845 2.0762e-05 deg
tp 2458919.055090019666
(2020-Mar-10.55509002)
0.00011482 TDB
period 1973.610744376878
5.40
1.6084e-05
4.404e-08
d
yr
n .1824067897003985 1.4865e-09 deg/d
Q 3.401911130991279 1.8482e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2059  
   data-arc span      20789 days (56.92 yr)  
   first obs. used      1964-03-11  
   last obs. used      2021-02-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43559  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 16:56:21  

Additional Information
 Earth MOID = 1.7681 au 
 Jupiter MOID = 1.87417 au 
 T_jup = 3.194 
[ 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 13.40   n/a E2021B10  
rotation period rot_per 5.36746 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

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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