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13953 (1990 TO4)
Classification: Main-belt Asteroid          SPK-ID: 2013953
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1638291470221064 5.9187e-08  
a 2.546988740922639 2.0054e-08 au
q 2.129717748022374 1.5016e-07 au
i 10.40054770649248 5.8261e-06 deg
node 82.84811305625551 8.6756e-05 deg
peri 5.889398413025829 0.00011198 deg
M 35.09085936238268 7.0315e-05 deg
tp 2457255.779362184496
(2015-Aug-21.27936218)
0.00028973 JED
period 1484.700875391836
4.06
1.7535e-05
4.801e-08
d
yr
n .2424730839503211 2.8638e-09 deg/d
Q 2.964259733822904 2.334e-08 au
  Orbit Determination Parameters
   # obs. used (total)      725  
   data-arc span      12061 days (33.02 yr)  
   first obs. used      1982-12-13  
   last obs. used      2015-12-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50559  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:25:56  

Additional Information
 Earth MOID = 1.14589 au 
 Jupiter MOID = 2.26399 au 
 T_jup = 3.401 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9 mag n/a MPO319259  

13953 (1990 TO4)          Discovered 1990-Oct-09 by McNaught, R. H. at Siding Spring
Reference: 20000320/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 TO4 = 1982 XJ3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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