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91772 (1999 TD203)
Classification: Main-belt Asteroid          SPK-ID: 2091772
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1742938479628029 3.6682e-08  
a 2.976608571773294 1.7916e-08 au
q 2.457804009919863 1.1407e-07 au
i 2.225160958030096 3.9536e-06 deg
node 275.1971632807333 0.00013047 deg
peri 188.7117148272558 0.00013129 deg
M 292.6497807864336 1.5154e-05 deg
tp 2459351.427604492568
(2021-May-16.92760449)
8.053e-05 TDB
period 1875.776190374699
5.14
1.6935e-05
4.637e-08
d
yr
n .1919205509949924 1.7327e-09 deg/d
Q 3.495413133626724 2.1038e-08 au
  Orbit Determination Parameters
   # obs. used (total)      660  
   data-arc span      7661 days (20.97 yr)  
   first obs. used      1999-10-01  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50655  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 19:17:44  

Additional Information
 Earth MOID = 1.4747 au 
 Jupiter MOID = 1.65628 au 
 T_jup = 3.236 
[ 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 15.3   n/a MPO493514  

91772 (1999 TD203)          Discovered 1999-Oct-13 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 TD203 = 2001 BJ38 = 2009 SY361 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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