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129913 (1999 TW99)
Classification: Main-belt Asteroid          SPK-ID: 2129913
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1553988181754188 4.1594e-08  
a 2.342261210316753 9.231e-09 au
q 1.978276586375403 9.6726e-08 au
i 7.253947106735874 4.3796e-06 deg
node 149.5884130570918 3.4097e-05 deg
peri 195.7934085420683 3.6555e-05 deg
M 299.8544375116057 1.4373e-05 deg
tp 2459219.252238680236
(2021-Jan-04.75223868)
5.2794e-05 TDB
period 1309.336926395541
3.58
7.7403e-06
2.119e-08
d
yr
n .2749483289920188 1.6254e-09 deg/d
Q 2.706245834258102 1.0665e-08 au
  Orbit Determination Parameters
   # obs. used (total)      909  
   data-arc span      7606 days (20.82 yr)  
   first obs. used      1999-10-02  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49788  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:42:23  

Additional Information
 Earth MOID = .971587 au 
 Jupiter MOID = 2.69439 au 
 T_jup = 3.536 
[ 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 15.7   n/a MPO385566  

129913 (1999 TW99)          Discovered 1999-Oct-02 by LINEAR at Socorro
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

Alternate Designations
 1999 TW99 = 2001 DB43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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