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JPL Small-Body Database Browser
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91791 (1999 TD223)
Classification: Main-belt Asteroid          SPK-ID: 2091791
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05963716498252693 4.6337e-08  
a 2.973945289029951 2.2224e-08 au
q 2.796587623179063 1.4276e-07 au
i 8.49386241147192 3.9899e-06 deg
node 241.1613612146725 3.3252e-05 deg
peri 76.29230378016405 4.6784e-05 deg
M 51.28389476489608 3.2331e-05 deg
tp 2458733.644358556080
(2019-Sep-07.14435856)
0.00016824 TDB
period 1873.259263170663
5.13
2.0998e-05
5.749e-08
d
yr
n .1921784170924996 2.1542e-09 deg/d
Q 3.151302954880839 2.355e-08 au
  Orbit Determination Parameters
   # obs. used (total)      790  
   data-arc span      7358 days (20.15 yr)  
   first obs. used      1999-09-08  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51161  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:57:52  

Additional Information
 Earth MOID = 1.79859 au 
 Jupiter MOID = 2.02552 au 
 T_jup = 3.242 
[ 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 14.5   n/a MPO493514  

91791 (1999 TD223)          Discovered 1999-Oct-03 by CSS at Catalina
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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