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70554 (1999 TS139)
Classification: Main-belt Asteroid          SPK-ID: 2070554
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1037398550918532 3.919e-08  
a 2.623148550373879 1.4706e-08 au
q 2.351023499873688 1.053e-07 au
i 1.826712080370132 5.4434e-06 deg
node 246.7949429947946 0.00015857 deg
peri 205.4920135514329 0.00016168 deg
M 253.0815866704249 3.0663e-05 deg
tp 2459461.374585203439
(2021-Sep-03.87458520)
0.00013255 TDB
period 1551.789308374854
4.25
1.3049e-05
3.573e-08
d
yr
n .2319902567037391 1.9508e-09 deg/d
Q 2.89527360087407 1.6231e-08 au
  Orbit Determination Parameters
   # obs. used (total)      537  
   data-arc span      8543 days (23.39 yr)  
   first obs. used      1997-03-11  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5268  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 06:28:12  

Additional Information
 Earth MOID = 1.36783 au 
 Jupiter MOID = 2.25769 au 
 T_jup = 3.395 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO436275  
rotation period rot_per 15.79 h n/a LCDB (Rev. 2019-August); 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:
[Chang, C.-H.; Lin, H.-W.; Ip, W.-H.; Chen, W.-P.; et al. (2019) ArXiv:1901.08719.]

70554 (1999 TS139)          Discovered 1999-Oct-06 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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