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70555 (1999 TW139)
Classification: Main-belt Asteroid          SPK-ID: 2070555
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1812253498613531 6.0994e-08  
a 2.577787164680993 1.5167e-08 au
q 2.110626783893575 1.5809e-07 au
i 13.37715939772424 6.9513e-06 deg
node 208.316635544692 2.76e-05 deg
peri 135.0854512508221 3.3907e-05 deg
M 25.85499502164734 2.3117e-05 deg
tp 2458891.929716974287
(2020-Feb-12.42971697)		 9.6382e-05 TDB
period 1511.711831950927
4.14		 1.3342e-05
3.653e-08		 d
yr
n .2381406246820236 2.1018e-09 deg/d
Q 3.044947545468412 1.7916e-08 au
   Orbit Determination Parameters
   # obs. used (total)      364  
   data-arc span      8245 days (22.57 yr)  
   first obs. used      1998-04-20  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57381  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:54:46  

Additional Information
 Earth MOID = 1.12693 au 
 Jupiter MOID = 2.49316 au 
 T_jup = 3.365 
[ 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 15.8   n/a MPO432258  

70555 (1999 TW139)          Discovered 1999-Oct-06 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TW139 = 1998 HP26 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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