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70550 (1999 TN138)
Classification: Main-belt Asteroid          SPK-ID: 2070550
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0820876021719584 4.9293e-08  
a 2.59325776142843 1.8986e-08 au
q 2.380383449978949 1.2706e-07 au
i 1.497537099467501 4.8495e-06 deg
node 255.8540007101234 0.00021127 deg
peri 58.2936437130973 0.00021377 deg
M 39.05718063681505 3.6307e-05 deg
tp 2458835.012442535554
(2019-Dec-17.51244254)
0.00015282 TDB
period 1525.341043972974
4.18
1.6751e-05
4.586e-08
d
yr
n .2360127929569949 2.5919e-09 deg/d
Q 2.80613207287791 2.0544e-08 au
  Orbit Determination Parameters
   # obs. used (total)      484  
   data-arc span      9553 days (26.15 yr)  
   first obs. used      1992-01-01  
   last obs. used      2018-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64018  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Mar-05 21:57:54  

Additional Information
 Earth MOID = 1.36681 au 
 Jupiter MOID = 2.38808 au 
 T_jup = 3.413 
[ 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 15.6   n/a MPO299427  

70550 (1999 TN138)          Discovered 1999-Oct-06 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 TN138 = 1998 LL 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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