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129453 (1991 TO16)
Classification: Main-belt Asteroid          SPK-ID: 2129453
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1081591379976866 4.7552e-08  
a 2.630340720116186 2.5375e-08 au
q 2.345845335188205 1.2813e-07 au
i 14.14408405541615 6.1422e-06 deg
node 202.4961493924717 1.9159e-05 deg
peri 231.1610440649675 3.7225e-05 deg
M 230.8730347987144 3.8104e-05 deg
tp 2459559.395847260015
(2021-Dec-10.89584726)
0.00017017 TDB
period 1558.17574354022
4.27
2.2547e-05
6.173e-08
d
yr
n .2310394071352116 3.3432e-09 deg/d
Q 2.914836105044167 2.8119e-08 au
  Orbit Determination Parameters
   # obs. used (total)      306  
   data-arc span      11845 days (32.43 yr)  
   first obs. used      1987-12-24  
   last obs. used      2020-05-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56606  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 02:17:05  

Additional Information
 Earth MOID = 1.38371 au 
 Jupiter MOID = 2.46274 au 
 T_jup = 3.349 
[ 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 15.9   n/a MPO426808  

129453 (1991 TO16)          Discovered 1991-Oct-06 by Lowe, A. at Palomar
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

[ show close-approach data ]
Alternate Designations
 1991 TO16 = 2004 YU31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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